I HAVE A 87 250R IT HAS NEW STATOR, CDI, 38mm PWK CARB I HAVE REPLACED A LOT ON THE QUAD IT HAS A FMF FATTY PIPE NEW VFORCE REEDS. I HAVE TO ADJUST THE IDLE SCREW ON THE CARB ALL THE WAY IN FOR IT TO PARTIALLY IDLE BEFORE IT BOGS OUT THE CARB WAS JETTED FOR A TRX250 (SUPPOSEDLY) WHEN I BOUGHT IT. ANY CLUES I NEED HELP?[img]i/expressions/face-icon-small-confused.gif[/img]

 

I would try adjusting your jetting, The air mixture screw, as well as the pilot are both responsiable for idleing.

 

First of all you need to adjust the air screw out to make it idle faster. Where is your needle clip at? And what is the main jet and pilot jet?

 

Smaller pilot jet will do the trick, worked for me on mine..

 

Acually your wrong, no biggie thow... On the PWK38mm carbs when you turn it in it will make it rev up more because it moves the slid UP. Next time you have a 38PWK apart take a look at it and you will see...I dont mean to be mean, but I was just correcting you....

Anyways play with your pilot jet and air screw some.

 

Actually he's right, the airscrew is different than the idle adjustment screw. Backing the airscrew out will allow more air in but if the pilot jet is too large it still won't be enough to idle right so lean the pilot out.....

 

OOPS my bad I though they meant the idle screw. I read to fast sometimes.

 

LOL I have to read some of this stuff twice to make sure I got it right, no biggy.....

 

I thought you had me there. Yea start with the pilot if that dosent work try adjustingthe needle clip down one slot.