Jetting Chart.

[jcs003]

i have an idea for the next sticky.

we all should build a jetting chart for the 250r that will help guys make jetting changes as they modify their engines based on region and such.

we would have to get it based on the stock engine and make the setups for several carbs and the progression of many different modifications.

i know this sounds like a challenging task but it would be a great thread.

if alot of us contribute it will not be that hard.

PLEASE GIVE SUGGESTIONS ON HOW TO GET STARTED.

[jhtrx250r]

Why ?
its easy just call or email sudco, tell them what carb you have and what is done to your motor and they will give spot on jetting.
works every time

[jcs003]

Originally posted by jhtrx250r
Why ?
its easy just call or email sudco, tell them what carb you have and what is done to your motor and they will give spot on jetting.
works every time

if so, there would be alot less jetting threads on here. guys get the ESR kits and they can't even get the jetting spot on for them.

[destey]

people could post their setups in a format like something like

displacement
stock/stroker crank
headwork/porting/reeds
pipe
stock / aftermarket ignition

carb model / size
mainjet / pilot / needle clip / screw setting

maybe throw in drive sprockets?

I know this would help out a lot of people. z400central does something like this

[rustyATV]

You'll also need riding altitude and the season you're jetted for.


Originally posted by jhtrx250r
Why ?
its easy just call or email sudco, tell them what carb you have and what is done to your motor and they will give spot on jetting.
works every time

I disagree. The "Pre-jetted" carb I got was jetted so rich it wasn't funny.