hey I got a question I have lt500 with I belive is a 39pwk and has been bored the motor has port work done I was just wondering if any one out there has about the same setup and what main jet you are running any help will be thankful???

 

Hello, not exactly what you are looking for but check out this link jetting.

Good Luck

 

Im just trying to find out what main jet to run thanks

 

Well right now mine is running a 200 main. Of course depending on your pipe, porting, and about a bagillion other things, your main could be larger or smaller than mine. I have: Powerhead with 59cc dome, bored .040 over, K&N, Paul Turner pipe, PVL ignition, DR PWK carb, Hinson clutch, blah blah blah.

 

Run which ever jets isnt too lean or too rich. Thats the best we can tell you.

 

Thats basically it. If it were a 4-stroke we could give you a general idea on what to start with, but 2-strokes are really finicky, and unless you have a pyrometer(EGT) its pure trial and error.

 

Would you know where to get a Mukuni version of that kick a$$ jet sheet you posted for The K??

ca

 

About the jetting article, I wish I knew where to get one for the mikuni. These guys mikuni have a manual and pocket guide you have to buy but I know nothing about the information they provide. Maybe if you called up Duncan Racing and asked where tuning the mikuni would differ from the keihin you might be able to make that guide work for you. I sure would like to know because if all goes right I'll be going through the same thing this summer.

 

I went on a search and only found this. Maybe it will help you?!?!?!

http://www.mikuni.com/fs-tuning_guide.html

ca







Does anyone know where I can get the original test on the 1987 Quadzilla. How about atleast what month and from what magizine. I had on and my kid lost it. I think it was Dirt Whels but am not sure. I need one real bad and am willing to pay top dollar for it!!! I am trying to make a poster size tribute to my Chromezilla!!

 

heys guys i figured out that i have 39pwk bored to a 40.49 thanks for the help i think im goint to jump from a 170 to a 200 .