Bike is still running great at close to 2000 miles! Beautiful day for a ride!

Nice pix Herbie! Raining cats and dogs in se Idaho today!!!

Thanks and yeah, rained here today too, seems like we have had an overabundance of rain this year.

2500 miles and still going strong!

Work and bad weather has prevented me from riding and working on my bike but I finally had some time to finish a few things and take it out for a ride today. I ported and polished the exhaust port only, I didn't touch the intake port and I took off 30 thousands off of the head surface and installed the head on my bike. The head made quite a bit of difference with the power I had and is good enough where I think I found my happy place with it. I only got to ride about 100 miles today so my opinions could change as I have more time to ride but we will see.
I left for my ride today with a temperature of 53 and 13mph winds. The biggest gain I can report is as I was on my way home I was riding against the wind all the way and with wide open throttle I was running a steady 70mph on the Brozz speedo which is about 64mph GPS. Before I would probably been down to about 59mph GPS with the head wind, so that is a definite win I think. My goal when I started out was to try and hold a 65mph speed as much as possible and I think now I am pretty close to that. Now if I had a big hill and strong wind I don't think I would be able to hold 65 at all but where it is now I am happy with it.
I also changed out the exhaust for the crf230 ebay aftermarket exhaust at a whopping cost of $76. I didn't like the way that it was going together as it looked like it was rubbing on the airbox and clutch lever. So I ordered a piece of 1-1/4" pipe and cut about 6" off and flared one end of it out. I installed the piece of pipe between the head pipe and mid pipe and that fixed all of the issues. Nothing is hitting anymore and the muffler that came with the exhaust even bolted to the stock mounting holes on the bike.( One thing to note is that the mid pipe mounting hole had to be moved because the mounting plate was pushed back toward the rear tire. I cut a piece of scap metal and drilled 2 holes and mounted it as an extension.) I wrapped the full exhaust again and it looks nice I think. My first start up and ride only took about 3 minutes before I said THIS THING IS TOO LOUD!! So back in the house I went and I found a Db killer on ebay that I thought I would try. It was one that was intended to be installed at the inlet of the exhaust so I had to drill some holes in the blank off plate to make it work since I wanted to install it in the outlet of the muffler. The sound is just perfect now, it has a rumble but not annoying at highway speeds.
I also re-jetted the carb, I went with a 42p 120m as before it was a 38p 119m
I didn't take many pictures of the head as I didn't think about it at the time. The pic of the exhaust port was before I was totally finished as I did work out some of the cut marks.
I might also add that on the performance of the new head that it does pull stronger in the upper rpm range, in 4th gear I hit 8000 rpm and was running 70mph on the Brozz speedo (64mph) and my top speed was 82mph on the Brozz speedo (74mph) and running at 7500-7600 rpm

Exhaust

DB killer in the muffler

I also installed some LED lights

In case you wanted to see a headless Brozz. Peace sports parts fiche shows 3 dowel pins and a o ring. Mine came with only 2 and no o ring. I guess it works fine this way as I haven't had any problems with it.

A little difference in the x pro gasket and the Brozz gasket. The Brozz gasket is marked CG200-B

Nice work.:tup: You might want to look at getting a Nibbi PE30 smooth bore carb. The PZ30 will be a little restrictive with the porting and deck work.

Thanks Jerry! I have been looking at different carbs but to tell you the truth I really like the pumper carb. I still have a little birthday money left and may get one anyway, you can never have too many parts! Okay well maybe you can :tup:
Do you think it will make an improvement on top end because that’s the one area it maybe lacking a little in.

I noticed a difference throughtout the RPM range including top end.

Would you recommend the Nibbi over the PWK?

Yes. It will be much easier to tune too.

Hello my name is herbie and I have a Amazon addiction! :shrug:

Nahh, your just a true chinarider. Lol

I got it installed and I'm on my 3rd intake. This one seems to fit pretty good but the hole in the flange is a little larger than 30mm and it has some head showing when you look into the hole. I need to port match it but for now I'm going with it to try it out the way it is. I've done several jetting changes but at 38 degrees its going to be off when it comes riding season and the higher temps hit. But right now I'm at 42 pilot/slow jet and 125 main with the needle in the 4th position, air screw out about 2 3/4 turns. It runs pretty good but full throttle is bogging still, the plug looks pretty good. I have to play with it next year as I think my riding season is over for this year. I did recheck my compression after the head work and it jumped from 172 to 181 so that's good.

Just for reference, if someone plans on going with the Nibbi PE30 carb on the Brozz, These are the 3 intakes I tried.

https://www.amazon.com/TC-Motor-Upgr...5134592&sr=8-6

This one is pretty close to fitting it puts the carb at a slight downward angle and the carb tucks a little behind the frame. With a little bending of the rubber you can make it work but I believe it puts too much pressure on the rubber and will split eventually so this was a no go for me.

The next one was the Nibbi CQR intake.

https://www.amazon.com/NIBBI-Perform...5136544&sr=8-4

I wanted this one to work because I like the design and quality of this one but it puts the carb right into the frame. I think it's possible to use this one with a rubber elbow with a slight bend outward but unfortunately I couldn't find what I needed to make it work, so this was a no for me too.

This is the current one I have on it.
https://www.amazon.com/Intake-Manifo...5136646&sr=8-5

It's a little large on the rubber end but a clamp seems to squeeze it pretty tight without leaking. I had to remove the vacuum port because it was hitting on the head mounting bracket, I just unscrewed the nipple and screwed in a small machine screw coated with ultra black rtv. The last issue is the flange end where it mounts to the head. The opening is a little larger than the opening in the head so I will have to port match it to make the flow uninhibited. The intake does seem to put the carb in a good position though and the air filter is easy to slip on.

I may wait and try and find the one that Dan found on taoboa but that website looks a little intimidating to me. I can't seem to find it anywhere else though.

I had a little time to work on my jetting today. It was a windy 49 degrees so not too awful bad but not great to ride in either. Anyway, after several jetting changes I ended up with 40 slow jet/ pilot, 128 main, needle in middle position and air screw out 2 1/2 turns. It runs really good with this jetting but I haven't oiled my air filter yet which will lower my jetting a tad bit. I hit over 8000 rpms several times and I can tell an increase in performance throughout the rpm range. The idle is dead smooth at 1500 rpm and it starts much easier as well.
The one issue I haven't resolved yet is the intake. As you can see in the pic the intake opening is quite a bit larger than the opening in the head. I was thinking about port matching the intake but I decided to go with the same intake as Megadan because I think it will match the port much better without all the work involved. Dan was kind enough to help me with how to order from Taobao website. So I ordered a few extra intakes, so if anyone is interested in going this route I will sell you one at my cost with whatever shipping it will be to your door. I just ordered a week or so ago so it maybe a month or two. Just message me and let me know if you are interested and I will let you know the cost.

Thanks Megadan and Jerryhawk250 for the help, I think this carb will be a great improvement in performance. :tup:

My new intake manifold came in

It was a fairly warm Jan 1 at 52 degrees so I took the bike out to see how what it run like with the new manifold. I could tell it was running a little lean at 3/4 to full throttle so I changed the main jet to a 130. It is running pretty decent but not perfect, I need to do a little more fine tuning but I'm getting really close. This carb is really sensitive to changes in the jetting. I also oiled the air filter before I made my jetting change. Right now I'm at a 40 slow 130 main jet with the air screw out 2 1/2 turns.
I did a top speed run today on the same section of interstate that I always do my top speed runs on, sitting in normal riding position on a relatively flat section of road and top speed was 78mph, which I think is a great improvement. I really like this carb, it is very responsive and pulls better all the way up to max rpm's. The only real downside is the tuning takes a little more time and effort to get the most out of it.

I want an intake like that just for the simplicity of jetting lol. Miss my old dirt bikes that were clamped on. Looks like its running pretty good, about 13 mph better than I can do.

Hey Duck, yeah it's probably close to the max, I'm thinking on a good day when all things are perfect I will get to 80mph, just maybe.
If you wanted one of these intakes I bought 3 and will sell two for what I paid which is $7 a piece, plus whatever shipping would be unless you wanted to take a trip to Illinois. :lmao:

Sounds like you got it running pretty good Herbie. :tup: You are running about the same as I am. I hit 80mph once but got a little squirrely so never attempted it again. lol I'm still running stock nobbies. My front tire seems to be a little out of round and has a slight bounce at low speeds around 40 mph. I do have a set of 50/50 tires that I will try out once I wear these down.

Thanks Jerry! How many miles do you get out of the stock nobbies? I think my tires will be pretty much done at 5k miles. I bet your bike will be lots better on the road with those 50/50 tires. I'm kinda considering straight street tires for a replacement but I'm on the fence about it.

The front tires about 2500 miles and the rear close to 5000 miles. I'm on my third front tire and is almost worn out. I just turned over to 7500 miles on the bike. I'm on my 2nd rear tire and it still has a good bit of tread. I have one new stock knobby and new 50/50 front and rear set ready when time comes to change them thanks to a couple of generous members on here that sent me there take-off stock tires. :tup:

Nice! That's awesome, with all the bad news in the world today it's nice to hear about acts of kindness. :tup:

2018 Brozz 250 Standard
 

The Green Brozz standard arrived one week ago which was one day earlier than expected. The bike was packaged well and undamaged.

I have been riding and wrenching on two wheeled vehicles for 50 years and this is my first China bike. I am impressed so far. I was careful with the assembly and used locktite on everything.

I did a lot of research and I think the standard Brozz is a ‘sweet spot’ in the market. I also would recommend Jeff and Peace Industries as a great place to do business.

The bike started right up and I now have 10 miles on it.

Congrats on the new Brozz! 50 years with bikes huh, sounds like me :tup:
I like the green color

ditto above....