New Hawk, new adventures. - Page 22

drstansbury@yahoo. · 12-28-2020, 11:29 PM

Well your videos and gathering of information into none place for everyone to find has inspired me to not only buy a chonda but do the engine build beyond the usual bolt ons. I ordered a cam and roller.followers along with a timing key from Henner motorsports, i believe nits a 298 duration with no lift increase. I also snagged an ebay head for porting so hopefully I can have all the parts ready in a few weeks to just sit down and swap them.out. Not sure if I'll attenpt to port it myself.or send it off for a.professional job. Not sure my mikuni clone carb will be up to the task but I'm going to throw some jets at it and try it before buying another carb. Is csc the best place to get the head and base gaskets? I considered eliminating the base gasket but hate to assemble it with only gasket maker and have a leak. Probably not worth the risk for the minimal gain. Will probably be asking more questions but will.let.you know how it goes.

Megadan · 12-29-2020, 02:41 AM

Quote:

Originally Posted by drstansbury@yahoo.

Well your videos and gathering of information into none place for everyone to find has inspired me to not only buy a chonda but do the engine build beyond the usual bolt ons. I ordered a cam and roller.followers along with a timing key from Henner motorsports, i believe nits a 298 duration with no lift increase. I also snagged an ebay head for porting so hopefully I can have all the parts ready in a few weeks to just sit down and swap them.out. Not sure if I'll attenpt to port it myself.or send it off for a.professional job. Not sure my mikuni clone carb will be up to the task but I'm going to throw some jets at it and try it before buying another carb. Is csc the best place to get the head and base gaskets? I considered eliminating the base gasket but hate to assemble it with only gasket maker and have a leak. Probably not worth the risk for the minimal gain. Will probably be asking more questions but will.let.you know how it goes.

Glad it had the intended purpose. I always suspected that a lot of people held back from getting into these bikes because of so many unknowns. It's still a bit much for some, but it definitely makes people more confident being able to simply find information.

As far as the gasket question. That is where I ordered mine. There are other gasket sets I could help you find, but you may be waiting several weeks to get them. The CSC Head gasket is the single piece steel gasket as well. I am not personally a fan of eliminating the base gasket either for several reasons.

Honestly, feel free to start your own thread on your build/project. We like to follow peoples work.

Megadan · 03-10-2021, 03:45 AM

So, where was I? Oh, right, having bad ideas...

Been a while since I had anything to really update about, but I can toss a few things in here.

First, I did install a 31 tooth rear sprocket, and while I have no doubt that my bike pulls stronger than my first Hawk, I think I have crossed the threshold of too much gear for my own taste. I am now debating on going 2 teeth in the other direction and putting a 35 on the rear. For now I am putting the 33 back on.

So on to one update/experiment. I am fairly certain that my ignition coil is a bit wimpy, and getting wimpier as I go along. Maybe it's the added compression, or maybe I need to run a smaller plug gap due to said compression and ignition advance, but it just doesn't want to pull as strong up top any more.

I could do another JerryHawk250 Coil on plug mod, and I really did love that the last time, but a part of me wants to stick with the KISS side of things, so I am going to give this a try first, a Nibbi branded ignition coil. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

I have been quite impressed with their quality thus far, so hopefully that trend holds true. The reviews seem promising at least, and I will obviously add my own to it. I do plan to keep using my taller NGK plug boot and shortening the wire as needed. In any case, it can't be any worse than stock, and it's only $14

So the real interesting bad idea part. I am going to switch back to a PZ30B from the PE30. I picked up a version that takes the same jets as my PE30, so I have jets galore to choose from, and I still have all of the other stuff that comes with it.

Not sure if I will even stay with that swap, but I am curious as to how it will feel and perform. I do know that I am a bit tired of the sensitivity and constant fiddling the PE30 seems to demand, so at the very least I can take a break and enjoy just riding. Plus, well... I miss the accelerator pump.

Megadan · 03-19-2021, 02:32 AM

So I dug my Hawk out and blew a bit of the dust off of it. Haven't gotten around to installing any of the previously mentioned parts, although that is on my agenda this weekend. Figured I would fire it up to get the oil moving a bit and go put a bit of air in the tires... Aaaaand the battery is gone lol. Tried to revive it, even got it to crank over, but when I got the fuel station and shut it down, nada. Had just enough in it to turn over once and then click the solenoid (that added compression doesn't help much btw).

So, I have a Mightymax sealed lead acid battery on the way via Amazon, should be here Sunday. Gives me some time to do the work I want to do, assuming I don't get too distracted with doing fun things like fishing.

China Rider 27 · 03-19-2021, 11:42 AM

Ice fishing maybe! Whatever came of that 32mm carb you were going to try?

Megadan · 03-19-2021, 12:21 PM

Quote:

Originally Posted by China Rider 27

Ice fishing maybe! Whatever came of that 32mm carb you were going to try?

I tried it. Not worth doing without a much more aggressive cam.

Megadan · 03-20-2021, 01:33 AM

So I got a bit done today. Not as much as I could have, but it was sunny, 58 degrees, and I wanted to go fishing.

Pulled the tank and plastics off and removed the PE30 setup, and then got my PZ30B ready to go. Going with a Nibbi brand washable style filter for fitment reasons, as it clears the side panel with room to spare. I am actually pleasantly surprised with the quality of this filter, no big holes or other gaps.

A nice side by side of the two setups.

I am sure some of you are wondering why I would do this, but it simply comes down to usability. The PE30 is great if you are chasing all out performance, but it is a fickle and finicky thing to get dialed in, and with the slightest change in weather it starts to run off and needs adjusting. My main goal is to use my bike as my main commuting vehicle this year since fuel prices are going up and it gets almost double what my economy car can manage. Thus, having a more set it and forget it friendly carburetor will just make life easier. If I lose half a HP, oh well, I have some to spare at this point.

I will have to do a tiny bit of jetting as I never ran this type of carb with the ported head, cam, and style of filter. I am going with a known quantity on the pilot jet and starting with a 45, which should be close if maybe a tad big. Main jet is anybodies guess, but I went with the same main from the PE30 for now, which at worst will be too big and I can go down from there.

While I had the tank off I went ahead and installed the Nibbi coil. I made a separate thread for that one, found here if you haven't seen it yet.
http://chinariders.net/showthread.php?t=28393

So I am going back to the 33 tooth for now as I just love that gearing combo. I do have a 12 tooth front that I may experiment with instead of a 35 rear, which is almost the same gearing anyway (12/33 vs. 13/35), plus I won't run into any potential chain length issues that way.

Another thing worth mentioning is that I will be reinstalling the fork brace. I dug it out of the box it was in and "persuaded" it into a better shape so as not to cause my forks to bind up. I will be doing that install along with the rear sprocket either tomorrow, or Sunday when my battery arrives.

I also did install my TT250 seat, which IMHO was worth every penny. It's not the greatest seat ever made, but compared to the Hawk unit it is a step in the right direction for sure.

[/url]

China Rider 27 · 03-20-2021, 10:37 AM

Good write up, nice work. I run an 11 tooth front with a 35 tooth rear somewhere as I remember around 3.0 ratio as I use my HAWK focused on off road in up and down terrain. Many are focused upon top speed, when all the fun is in the mid range! A couple of years ago I studied your work on the PZ30B, put one on my HAWK and confirmed it "is a performance improvement", especially so with low gearing it provides as you call it "punch." Sometimes I think about putting another carburetor on my HAWK, then I go about my other business!

turbodadd · 03-22-2021, 01:17 AM

Great info! I just bought a 2017 Hawk 250, and then picked up a Tao tbr7 for the wife! Thanks for all the info!

Megadan · 03-27-2021, 09:28 PM

Finally got around to getting it finished up and back on the road.

So, where do my misadventures begin?

The PZ30B definitely put up a fight. I ended up having to swap parts over from my old one to this new one in order to get the pumper to function properly. The check ball jets were too long and actually causing an issue with fuel flow to the nozzle. Once I swapped those over, the nozzle itself was actually too short

... So I swapped all of that over, and finally got it working.

Jetting was straight forward, used the 38 pilot from the PE30, idle mixture is currently 1 3/4 out, though it might need to be leaned out a tad once it gets to summer. Idle is rock solid, something I always fought a little with the PE30. Main jet size is currently a 135 with that K&N style Nibbi filter on there, but by the time I got to test riding the temps started falling pretty quick and pretty far, so I decided to call it quits for now. It is either a hair too lean or a hair too rich, but it was hard to determine at that point. I will toss a 140 in it next chance I get, or wait for the temps to be in the mid 70's and see if it behaves worse or better.

The Nibbi coil is definitely kicking harder than the old one. When I first started tuning I had the jetting way too rich all around, and instead of dying, it just blew smoke like a diesel, so it's sparking hard.

Bike still pulls just as hard even with the "smaller" carb. It may have lost a teeny tiny bit of throttle response, but not that much with the accelerator pump making up the difference. Still quite the whiplash maker in the lower gears, and it's amazing how quickly this bike will hit the rev limiter in first gear even with the way it is geared. Fast enough that if I try to nail it in first gear from a slow roll I can almost not react fast enough.

Did all the usual spoke checking, chain cleaning, and pivot greasing. Swapped back to the 33 rear for now. Here soon I may swap out to a 12 front just to see how I like it.

It was nice to get out and ride it again, finally.

I am really liking the tail bag so far too. Hopefully it lasts a couple of seasons at least.

China Rider 27 · 03-28-2021, 12:29 AM

Got a little riding in myself today on the HAWK after I put a 2 gauge ground wire on it. I had to take the carburetor off to get to it and then mess around with the pumper adjustment some as it seemed to be off. I put lock tite on the carburetor bolts when I lost a nut while back, so they wouldn't loosen and the studs backed out instead. As soon as you pick up a wrench the gremlins go to work! Monday supposed to get some sun, so I'm heading for the hills to ride. I bought that tail bag too! needed something for tools but somehow its not a tool bag.

Megadan · 03-28-2021, 12:37 AM

Quote:

Originally Posted by China Rider 27

Got a little riding in myself today on the HAWK after I put a 2 gauge ground wire on it. I had to take the carburetor off to get to it and then mess around with the pumper adjustment some as it seemed to be off. I put lock tite on the carburetor bolts when I lost a nut while back, so they wouldn't loosen and the studs backed out instead. As soon as you pick up a wrench the gremlins go to work! Monday supposed to get some sun, so I'm heading for the hills to ride. I bought that tail bag too! needed something for tools but somehow its not a tool bag.

Sounds like we had similar days lol. I put a lock nut on my carb nuts for the same reason you used some loctite. I Just went with the lock nuts for simplicity more than anything, plus they have enough extra thread to do it.

A 2ga. ground? I thought my 6ga was overkill!

I think that bag will do ok for tool duty. It's definitely a light duty item due to the plastic buckles and hoops, but as long as too much isn't asked of it I think it will hold up fine. I just need something to hold my lunch, a drink or two, and maybe my rain liners on those iffy days. When it is expanded it can hold all of those things. I do eventually want to get some side bags and make up some hoops for them, but no hurry. I have my hands full enough as it is!

China Rider 27 · 03-28-2021, 09:45 AM

Similar, but taking apart the PZ30B accelerator pump injector system and dealing with some studs not quite the same technical level. Ha, Ha. Those studs were quite a testament to Loctite 243. This is what happens when you buy the big bottle, everything gets loctite! Put it on the stud side stupid! Live and learn with these bikes and mechanics. Yaa the tail bag will work, it has a nice shape and I like expandable. I was using a small duffle I bunged to the sides. Like you I question durability but the overall design is excellent. The cable I got at O Reilly's,(correction I looked at the package) is 4 ga and a 12 inch car cable, just barely fits lengthwise but nothing in the way. I have one of those NIBBI coils I bought as a spare I may have to try it.

Megadan · 03-28-2021, 05:02 PM

Day 1 of the tail bag being properly used. Didn't even need to expand it to hold my usual haul of goods to work. Straps stayed snug and nothing shifted.

I will say this. I love the design of it. It was nice being able to ride without having to wear a backpack, which will be even better once it gets hot outside.

I unbuckled and carried it in by the handle. A 5 second affair. I really do hope it holds up for a while as I really love it.

China Rider 27 · 03-28-2021, 09:22 PM

I admire that CSC rear rack on your bike. It looks like a rear air spoiler when nothing is attached! Ha Ha. At $95 dollars though just not budget worthy. I bought a 1/8 sheet of aluminum 12" X 12" for think $21 off Amazon. I'm going to try and make one some time. It appears it uses like 1 inch plastic spacer to move it up some. You would need some longer bolts and you find any stability issues with that?

03-10-2021, 03:45 AM	#3
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,065	So, where was I? Oh, right, having bad ideas... Been a while since I had anything to really update about, but I can toss a few things in here. First, I did install a 31 tooth rear sprocket, and while I have no doubt that my bike pulls stronger than my first Hawk, I think I have crossed the threshold of too much gear for my own taste. I am now debating on going 2 teeth in the other direction and putting a 35 on the rear. For now I am putting the 33 back on. So on to one update/experiment. I am fairly certain that my ignition coil is a bit wimpy, and getting wimpier as I go along. Maybe it's the added compression, or maybe I need to run a smaller plug gap due to said compression and ignition advance, but it just doesn't want to pull as strong up top any more. I could do another JerryHawk250 Coil on plug mod, and I really did love that the last time, but a part of me wants to stick with the KISS side of things, so I am going to give this a try first, a Nibbi branded ignition coil. https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1 I have been quite impressed with their quality thus far, so hopefully that trend holds true. The reviews seem promising at least, and I will obviously add my own to it. I do plan to keep using my taller NGK plug boot and shortening the wire as needed. In any case, it can't be any worse than stock, and it's only $14 So the real interesting bad idea part. I am going to switch back to a PZ30B from the PE30. I picked up a version that takes the same jets as my PE30, so I have jets galore to choose from, and I still have all of the other stuff that comes with it. Not sure if I will even stay with that swap, but I am curious as to how it will feel and perform. I do know that I am a bit tired of the sensitivity and constant fiddling the PE30 seems to demand, so at the very least I can take a break and enjoy just riding. Plus, well... I miss the accelerator pump. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
	3

03-19-2021, 02:32 AM	#4
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,065	So I dug my Hawk out and blew a bit of the dust off of it. Haven't gotten around to installing any of the previously mentioned parts, although that is on my agenda this weekend. Figured I would fire it up to get the oil moving a bit and go put a bit of air in the tires... Aaaaand the battery is gone lol. Tried to revive it, even got it to crank over, but when I got the fuel station and shut it down, nada. Had just enough in it to turn over once and then click the solenoid (that added compression doesn't help much btw). So, I have a Mightymax sealed lead acid battery on the way via Amazon, should be here Sunday. Gives me some time to do the work I want to do, assuming I don't get too distracted with doing fun things like fishing. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
	1

03-20-2021, 01:33 AM	#7
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,065	So I got a bit done today. Not as much as I could have, but it was sunny, 58 degrees, and I wanted to go fishing. Pulled the tank and plastics off and removed the PE30 setup, and then got my PZ30B ready to go. Going with a Nibbi brand washable style filter for fitment reasons, as it clears the side panel with room to spare. I am actually pleasantly surprised with the quality of this filter, no big holes or other gaps. A nice side by side of the two setups. I am sure some of you are wondering why I would do this, but it simply comes down to usability. The PE30 is great if you are chasing all out performance, but it is a fickle and finicky thing to get dialed in, and with the slightest change in weather it starts to run off and needs adjusting. My main goal is to use my bike as my main commuting vehicle this year since fuel prices are going up and it gets almost double what my economy car can manage. Thus, having a more set it and forget it friendly carburetor will just make life easier. If I lose half a HP, oh well, I have some to spare at this point. I will have to do a tiny bit of jetting as I never ran this type of carb with the ported head, cam, and style of filter. I am going with a known quantity on the pilot jet and starting with a 45, which should be close if maybe a tad big. Main jet is anybodies guess, but I went with the same main from the PE30 for now, which at worst will be too big and I can go down from there. While I had the tank off I went ahead and installed the Nibbi coil. I made a separate thread for that one, found here if you haven't seen it yet. http://chinariders.net/showthread.php?t=28393 So I am going back to the 33 tooth for now as I just love that gearing combo. I do have a 12 tooth front that I may experiment with instead of a 35 rear, which is almost the same gearing anyway (12/33 vs. 13/35), plus I won't run into any potential chain length issues that way. Another thing worth mentioning is that I will be reinstalling the fork brace. I dug it out of the box it was in and "persuaded" it into a better shape so as not to cause my forks to bind up. I will be doing that install along with the rear sprocket either tomorrow, or Sunday when my battery arrives. I also did install my TT250 seat, which IMHO was worth every penny. It's not the greatest seat ever made, but compared to the Hawk unit it is a step in the right direction for sure. [/url] __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124
	5

03-27-2021, 09:28 PM	#10
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,065	Finally got around to getting it finished up and back on the road. So, where do my misadventures begin? The PZ30B definitely put up a fight. I ended up having to swap parts over from my old one to this new one in order to get the pumper to function properly. The check ball jets were too long and actually causing an issue with fuel flow to the nozzle. Once I swapped those over, the nozzle itself was actually too short ... So I swapped all of that over, and finally got it working. Jetting was straight forward, used the 38 pilot from the PE30, idle mixture is currently 1 3/4 out, though it might need to be leaned out a tad once it gets to summer. Idle is rock solid, something I always fought a little with the PE30. Main jet size is currently a 135 with that K&N style Nibbi filter on there, but by the time I got to test riding the temps started falling pretty quick and pretty far, so I decided to call it quits for now. It is either a hair too lean or a hair too rich, but it was hard to determine at that point. I will toss a 140 in it next chance I get, or wait for the temps to be in the mid 70's and see if it behaves worse or better. The Nibbi coil is definitely kicking harder than the old one. When I first started tuning I had the jetting way too rich all around, and instead of dying, it just blew smoke like a diesel, so it's sparking hard. Bike still pulls just as hard even with the "smaller" carb. It may have lost a teeny tiny bit of throttle response, but not that much with the accelerator pump making up the difference. Still quite the whiplash maker in the lower gears, and it's amazing how quickly this bike will hit the rev limiter in first gear even with the way it is geared. Fast enough that if I try to nail it in first gear from a slow roll I can almost not react fast enough. Did all the usual spoke checking, chain cleaning, and pivot greasing. Swapped back to the 33 rear for now. Here soon I may swap out to a 12 front just to see how I like it. It was nice to get out and ride it again, finally. I am really liking the tail bag so far too. Hopefully it lasts a couple of seasons at least. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 Last edited by Megadan; 03-28-2021 at 04:38 AM.
	2

03-28-2021, 09:45 AM	#13
China Rider 27 Join Date: Dec 2018 Location: PNW Posts: 982	Similar, but taking apart the PZ30B accelerator pump injector system and dealing with some studs not quite the same technical level. Ha, Ha. Those studs were quite a testament to Loctite 243. This is what happens when you buy the big bottle, everything gets loctite! Put it on the stud side stupid! Live and learn with these bikes and mechanics. Yaa the tail bag will work, it has a nice shape and I like expandable. I was using a small duffle I bunged to the sides. Like you I question durability but the overall design is excellent. The cable I got at O Reilly's,(correction I looked at the package) is 4 ga and a 12 inch car cable, just barely fits lengthwise but nothing in the way. I have one of those NIBBI coils I bought as a spare I may have to try it. Last edited by China Rider 27; 03-28-2021 at 12:08 PM.
	1

12-28-2020, 11:29 PM	#1
drstansbury@yahoo. Join Date: Dec 2019 Posts: 77	Well your videos and gathering of information into none place for everyone to find has inspired me to not only buy a chonda but do the engine build beyond the usual bolt ons. I ordered a cam and roller.followers along with a timing key from Henner motorsports, i believe nits a 298 duration with no lift increase. I also snagged an ebay head for porting so hopefully I can have all the parts ready in a few weeks to just sit down and swap them.out. Not sure if I'll attenpt to port it myself.or send it off for a.professional job. Not sure my mikuni clone carb will be up to the task but I'm going to throw some jets at it and try it before buying another carb. Is csc the best place to get the head and base gaskets? I considered eliminating the base gasket but hate to assemble it with only gasket maker and have a leak. Probably not worth the risk for the minimal gain. Will probably be asking more questions but will.let.you know how it goes.
	0

03-19-2021, 11:42 AM	#5
China Rider 27 Join Date: Dec 2018 Location: PNW Posts: 982	Ice fishing maybe! Whatever came of that 32mm carb you were going to try?
	0

03-20-2021, 10:37 AM	#8
China Rider 27 Join Date: Dec 2018 Location: PNW Posts: 982	Good write up, nice work. I run an 11 tooth front with a 35 tooth rear somewhere as I remember around 3.0 ratio as I use my HAWK focused on off road in up and down terrain. Many are focused upon top speed, when all the fun is in the mid range! A couple of years ago I studied your work on the PZ30B, put one on my HAWK and confirmed it "is a performance improvement", especially so with low gearing it provides as you call it "punch." Sometimes I think about putting another carburetor on my HAWK, then I go about my other business!
	0

03-22-2021, 01:17 AM	#9
turbodadd Join Date: Mar 2021 Location: Springville Utah Posts: 7	Great info! I just bought a 2017 Hawk 250, and then picked up a Tao tbr7 for the wife! Thanks for all the info!
	0

03-28-2021, 12:29 AM	#11
China Rider 27 Join Date: Dec 2018 Location: PNW Posts: 982	Got a little riding in myself today on the HAWK after I put a 2 gauge ground wire on it. I had to take the carburetor off to get to it and then mess around with the pumper adjustment some as it seemed to be off. I put lock tite on the carburetor bolts when I lost a nut while back, so they wouldn't loosen and the studs backed out instead. As soon as you pick up a wrench the gremlins go to work! Monday supposed to get some sun, so I'm heading for the hills to ride. I bought that tail bag too! needed something for tools but somehow its not a tool bag.
	1

03-28-2021, 05:02 PM	#14
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,065	Day 1 of the tail bag being properly used. Didn't even need to expand it to hold my usual haul of goods to work. Straps stayed snug and nothing shifted. I will say this. I love the design of it. It was nice being able to ride without having to wear a backpack, which will be even better once it gets hot outside. I unbuckled and carried it in by the handle. A 5 second affair. I really do hope it holds up for a while as I really love it. __________________ Hawk Information and Resource guide: http://www.chinariders.net/showthread.php?t=20331 2018 Hawk 250 - Full Mod list here. http://www.chinariders.net/showpost....62&postcount=1 2024 Royal Enfield Shotgun 650 https://chinariders.net/showthread.php?t=34124 Last edited by Megadan; 04-01-2021 at 06:15 AM.
	1

03-28-2021, 09:22 PM	#15
China Rider 27 Join Date: Dec 2018 Location: PNW Posts: 982	I admire that CSC rear rack on your bike. It looks like a rear air spoiler when nothing is attached! Ha Ha. At $95 dollars though just not budget worthy. I bought a 1/8 sheet of aluminum 12" X 12" for think $21 off Amazon. I'm going to try and make one some time. It appears it uses like 1 inch plastic spacer to move it up some. You would need some longer bolts and you find any stability issues with that?
	0