28mm Flat Slide ?

[SICK BOY]

I'm just finishing putting my shee back together from a complete rebuild and have a jetting ?.I have replaced the stock carbs with 28mm flat slides and was wondering what I should start my jetting at?My mods are listed below in my sig. and my elevation is just above 700'.

Thanks

[flea49]

YOU DID NOT SAY THE MAKER OF THE CARBS,BUT IF THEY ARE PWK,I WOULD SAY 160 MAIN AND 42 SLOW.

[fixitrod]

Mikuni, I'd say 340's since it's cold, 27.5 pilot (very cheap for these carbs) and needle in 3rd (stock) position. Make sure you use the needle that came with the carbs.

[Aussie Quad Racer]

if they are mikuni i wouls suggest starting out with a couple of sizes up on the main from what you had in the 26mm carbs.

 

The other question is are they power jet carbs?

[SICK BOY]

They are Mikuni,and they are not power jet.I don't plan on riding intill spring,so do you guys think 27.5 pilots and 360 mains would be alright for spring/summer?

[fixitrod]

In the sring, I'd start with 330 or 320's. The warmer it its, the smaller you go. The air is less dense. This is a starting point of course.

[SICK BOY]

Thanks fixitrod,I had the process backwards.

[Yaxy]

In central NY (Utica area) where I am from (800 - 1200ft assumption where I ride) I use 20 pilots and 280 mains on the 28 flatslides with the air box lid on and 4 1/2 inch holes. At one time I did run 15 pilots when I had the pro-design intake but had to go up to a 20 when removed. Every machine is different so make small incremetneal changes ideally at your ideal riding temeperature and atltitude.

 

PS. It never hurts to be a little on the rich side.

 

Chris

 

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