[Mc69]

Well I have been struggling to get my bike tuned right over the past few weeks. I used the Ohio site to get a general idea on what kind of jets my bike would need, but after switching and swapping I'm always running lean or rich depending on needle or main jets, when I hit about 6k on the rpms.

Here's my list of mods. Todds pistons, New Cam chain with slipper tensioner, Megacycle 123-20 cam, and Mikuni VM32 Carbs with velocity stacks.

If anybody has a similar setup and could throw me a bone on where to find a better start, or if you have any better ideas.

 

[Mc69]

Come on, I know that someone on here's gotta be runnin a setup somewhat close to mine

 

[350f Terry]

call the company you go the carbs from they should be albe to give you a better idea, thats what I did and my 350f is running great

 

[krapfever]

I'm having similar but different problems with my similar but different setup. I've got 28mm Mikunis and a 362 kit, stock head/cam (street bike) and the best I can get them after Sudco initially "custom tuned them to my bike" (a.k.a. TOTALLY way off), I keep coming up rich down low. I might look into different sliders or start all over again.

This post doesn't help you at all. I'm just showing empathy.

Honda go sideways!

 

[Mc69]

Thanks for the support, I know there is a few guys on this board that race these damn things and have the same setup so I was hoping they would chime in.

 

[ROSKO]

A lot of the 350's raced by people here are run in a 'formula' class, so we have to run the stock carbs...

SUDCO makes a great carb tuning manual, you may want to check that out.

The thing to do is start with a huge jet and work your way down till it gets lean. Start with a 120 main and do some plug chops under load (any gear) at REDLINE (9500-10000rpm) move down from there, 6000rpm is right around the point where the fuel control is being shifted from the needle to the main jet.

http://www.lafishmag.com/CarbTuning.html

BORN TO LURK, FORCED TO WORK.
www.NYCvinMoto.com
www.VinMoto.org