Hwbnde vm26 purchase

mijivey · 11-21-2019, 08:41 PM

Hi Chinariders, I have ordered a Hawk and purchased parts in anticipation of my build. Upon receiving and disassembling my new carb, I found a 100 main jet and #40 six-hole pilot jet. I will have an eBay exhaust and pod air cleaner...so jetting will start at a 110-120, but am confused on the pilot. The rebuild kit(included with carb purchase) has an unmarked 8-hole pilot. I am in Florida/sea level so would appreciate a starting point pilot jet!?!?! 6 hole or eight? Thank you for any input....greatly appreciate this wonderful resource, respectfully, mijivey

Duckman · 11-21-2019, 10:38 PM

So for what it worth I have the 2020 TBR7 as well as the 2020 Hawk. I also ordered 2 of the same carbs you did. I live at 650’ in the foothills of the Cascade Mountains in Oregon. I installed the 120 main jet and left the Factory pilot jet installed “ mainly because I ordered the wrong pilot jets”. I have the factory exhaust still and they both run great. Oh I also turned out the air fuel mixture screw out 13/4 turns. Hope it helps. At least they are easy to tinker with.
Duckman out

mijivey · 11-22-2019, 06:20 PM

Thank you for your response Duckman! What size pilot jet were you considering? Do you recall if your's is a 6 or 8 hole type??? Thank you for any info

OneLeggedRider · 11-22-2019, 11:58 PM

The general consensus is the unmarked jet in the rebuild kit is a 20. Which even on a bike that hasn't been modded isn't big enough. Start off with a 22 and put a 25 in it after you've done the performance exhaust etc. Your bike will start and run better with a big pilot and a small main jet, trust me.

https://www.amazon.com/gp/aw/d/B07QX...b_b_asin_title

diyRdie · 11-23-2019, 07:43 AM

I have a vm26 on a magician (same engine as hawk) with purrformance exuast no cat and pod type air filter. I'm at 740' above sea level. I run a 25 pilot and a 115 main. With the clip in the middle position. Seems to work great.

OneLeggedRider · 11-23-2019, 08:00 AM

We put a 25 pilot in Jay's Hawk, 1.5 turns on the screw, needle clip center position, 110 main and the elevation is about 760'. Starts and runs great.

mijivey · 11-23-2019, 10:18 AM

Thank you all for the valuable info, very much appreciated! mijivey

NzBrakelathes · 11-23-2019, 05:29 PM

Remember pilot jet is controlled by the air screw
If bigger it's open less
Smaller open more
You need to tune it at idle to find the lean to rich area
Not just xxx turns out

OneLeggedRider · 11-23-2019, 06:32 PM

Quote:

Originally Posted by NzBrakelathes

Remember pilot jet is controlled by the air screw
If bigger it's open less
Smaller open more
You need to tune it at idle to find the lean to rich area
Not just xxx turns out

Yes Tako, the proper procedure for tuning the FUEL mixture screw on the Mikuni clone is turning the screw out till you achieve your highest idle, then turn it back in till you notice the slightest rpm drop. As long as it's between 1 and 2 turns out you've got the right size pilot jet. If you're skilled enough to get it at exactly 1.5 turns out then you've got the perfect size pilot and can move on to the main jet. Then just adjust the needle for a smooth transition between the two. Easy peezy lemon squeezy.

NzBrakelathes · 11-23-2019, 06:50 PM

Quote:

Originally Posted by OneLeggedRider

Yes Tako, the proper procedure for tuning the FUEL mixture screw on the Mikuni clone is turning the screw out till you achieve your highest idle, then turn it back in till you notice the slightest rpm drop. As long as it's between 1 and 2 turns out you've got the right size pilot jet. If you're skilled enough to get it at exactly 1.5 turns out then you've got the perfect size pilot and can move on to the main jet. Then just adjust the needle for a smooth transition between the two. Easy peezy lemon squeezy.

Same as stock carb
Both are basically the same if not generally just the same

OneLeggedRider · 11-23-2019, 10:20 PM

Quote:

Originally Posted by NzBrakelathes

Same as stock carb
Both are basically the same if not generally just the same

Oh my, still the stock carb which is finicky, and difficult to tune even if you can source pilot jets for it. Or the lovely Mikuni clone that you can tune by recommendations alone and have it running wonderfully in 5 minutes. Decisions decisions.. 🤔 😅

NzBrakelathes · 11-24-2019, 11:09 AM

Quote:

Originally Posted by OneLeggedRider

Oh my, still the stock carb which is finicky, and difficult to tune even if you can source pilot jets for it. Or the lovely Mikuni clone that you can tune by recommendations alone and have it running wonderfully in 5 minutes. Decisions decisions.. 🤔 😅

Only if you don’t know what your doing huh
Both same design, but you choose

Megadan · 11-24-2019, 04:15 PM

I went with the Mikuni clone on my first Hawk out of pure laziness. I couldn't be bothered to go through the effort of removing the sealed screws and mixture screw cap. Went straight to the mikuni clone, followed some suggestions I found on here, and then tweaked those suggestions by upping the pilot jet and dropping the main jet.

On my new bike I went with the pz30b. Took longer to get running right, but in the end it ran just as good. The lack of pilot jet options was annoying, and the main source of frustration for many.

Having helped a couple other friends with their cg clone bikes, one mikuni and one pz30, it was a similar story. The mikuni clone was up and running in an instant, the pz30 too a bit longer, but at least his used keihin jets. In the end they both ran about the same.

Honestly, I think it is the mikuni jets themselves that make the small difference in how the bikes run/ride. Be it the taper of the jet orifice or the location of the emulsion holes in the pilot jet, they are just a lot less finicky to get up and running. Plus, for 90% of the guys on here you can order the carb and 4 jets, 2 pilot and 2 main, and call it a day

Just my 2 cents.

OneLeggedRider · 11-24-2019, 09:11 PM

Exhausting to say the least.

newbie88 · 11-26-2019, 12:28 PM

Piggybacking on this since I have similar questions!
I recently got the same carburetor as you and put in the 110 main jet. Now I am having issues starting the bike compared to when I had the PZ carb.. but maintains idle fine after it warms up.
Did some searching and looks like I need to up the pilot jet as well?
I just ordered a #25 pilot in hopes that it will work for me.
I too am at sea level in Houston. Temps seem to be in the 50s-60s recently. Thanks!

11-21-2019, 08:41 PM	#1
mijivey Join Date: Oct 2019 Posts: 4	Hwbnde vm26 purchase Hi Chinariders, I have ordered a Hawk and purchased parts in anticipation of my build. Upon receiving and disassembling my new carb, I found a 100 main jet and #40 six-hole pilot jet. I will have an eBay exhaust and pod air cleaner...so jetting will start at a 110-120, but am confused on the pilot. The rebuild kit(included with carb purchase) has an unmarked 8-hole pilot. I am in Florida/sea level so would appreciate a starting point pilot jet!?!?! 6 hole or eight? Thank you for any input....greatly appreciate this wonderful resource, respectfully, mijivey
	0

11-23-2019, 07:43 AM	#5
diyRdie Join Date: May 2019 Location: Rockford, IL Posts: 98	I have a vm26 on a magician (same engine as hawk) with purrformance exuast no cat and pod type air filter. I'm at 740' above sea level. I run a 25 pilot and a 115 main. With the clip in the middle position. Seems to work great. __________________ Good judgment comes from experience, and often experience comes from bad judgment. MY BIKE'S THREAD
	2

11-23-2019, 08:00 AM	#6
OneLeggedRider Join Date: Nov 2018 Location: Stockport, Oh. Posts: 1,442	We put a 25 pilot in Jay's Hawk, 1.5 turns on the screw, needle clip center position, 110 main and the elevation is about 760'. Starts and runs great. __________________ ~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400
	2

11-24-2019, 04:15 PM	#13
Megadan Join Date: Apr 2017 Location: Omaha, NE Posts: 8,042	I went with the Mikuni clone on my first Hawk out of pure laziness. I couldn't be bothered to go through the effort of removing the sealed screws and mixture screw cap. Went straight to the mikuni clone, followed some suggestions I found on here, and then tweaked those suggestions by upping the pilot jet and dropping the main jet. On my new bike I went with the pz30b. Took longer to get running right, but in the end it ran just as good. The lack of pilot jet options was annoying, and the main source of frustration for many. Having helped a couple other friends with their cg clone bikes, one mikuni and one pz30, it was a similar story. The mikuni clone was up and running in an instant, the pz30 too a bit longer, but at least his used keihin jets. In the end they both ran about the same. Honestly, I think it is the mikuni jets themselves that make the small difference in how the bikes run/ride. Be it the taper of the jet orifice or the location of the emulsion holes in the pilot jet, they are just a lot less finicky to get up and running. Plus, for 90% of the guys on here you can order the carb and 4 jets, 2 pilot and 2 main, and call it a day Just my 2 cents. __________________ 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; 11-24-2019 at 08:46 PM.
	6

11-24-2019, 09:11 PM	#14
OneLeggedRider Join Date: Nov 2018 Location: Stockport, Oh. Posts: 1,442	Exhausting to say the least. __________________ ~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400
	1

11-21-2019, 10:38 PM	#2
Duckman Join Date: Sep 2019 Location: Molalla Oregon Posts: 95	So for what it worth I have the 2020 TBR7 as well as the 2020 Hawk. I also ordered 2 of the same carbs you did. I live at 650’ in the foothills of the Cascade Mountains in Oregon. I installed the 120 main jet and left the Factory pilot jet installed “ mainly because I ordered the wrong pilot jets”. I have the factory exhaust still and they both run great. Oh I also turned out the air fuel mixture screw out 13/4 turns. Hope it helps. At least they are easy to tinker with. Duckman out
	2

11-22-2019, 06:20 PM	#3
mijivey Join Date: Oct 2019 Posts: 4	Thank you for your response Duckman! What size pilot jet were you considering? Do you recall if your's is a 6 or 8 hole type??? Thank you for any info
	0

11-22-2019, 11:58 PM	#4
OneLeggedRider Join Date: Nov 2018 Location: Stockport, Oh. Posts: 1,442	The general consensus is the unmarked jet in the rebuild kit is a 20. Which even on a bike that hasn't been modded isn't big enough. Start off with a 22 and put a 25 in it after you've done the performance exhaust etc. Your bike will start and run better with a big pilot and a small main jet, trust me. https://www.amazon.com/gp/aw/d/B07QX...b_b_asin_title __________________ ~ Don't poke the bear ~ M.M.I. Dean's List graduate class of '95 and Specialty welder 2020 Ice Bear Terifecta 150cc Trike 2011 Honda Foreman 500ES 4x4 2001 Polaris Scrambler 400
	3

11-23-2019, 10:18 AM	#7
mijivey Join Date: Oct 2019 Posts: 4	Thank you all for the valuable info, very much appreciated! mijivey
	1

11-23-2019, 05:29 PM	#8
NzBrakelathes Join Date: Jun 2016 Location: Hell Posts: 2,408	Remember pilot jet is controlled by the air screw If bigger it's open less Smaller open more You need to tune it at idle to find the lean to rich area Not just xxx turns out
	4

11-26-2019, 12:28 PM	#15
newbie88 Join Date: Apr 2019 Posts: 17	Piggybacking on this since I have similar questions! I recently got the same carburetor as you and put in the 110 main jet. Now I am having issues starting the bike compared to when I had the PZ carb.. but maintains idle fine after it warms up. Did some searching and looks like I need to up the pilot jet as well? I just ordered a #25 pilot in hopes that it will work for me. I too am at sea level in Houston. Temps seem to be in the 50s-60s recently. Thanks!
	1