1986 flat side carb i cant get it to idel

[AllThreeWheels]

guys where do i ajust my idel on my 1986 carb

[Red Rider]

If you're talking about an '86 250R, on the Keihin PJ flatslide carbs, you adjust the idle by turning the choke knob one way or the other.

[AllThreeWheels]

i have it does not do anything what could be the problem

[Dammit!]

Could be a clogged up pilot jet. Have you cleaned the carb yet?

[AllThreeWheels]

what do i do to clean it and how???

[Dammit!]

Take it apart and either soak it in some carb cleaner (remove all the plastic and rubber parts first!) or spray it out real good with carb cleaner. Make sure the jets are clear and re-assemble.

[AllThreeWheels]

well it idels when i twist the throttle a tiny bit could there be slack in the throttle cable

[wolfspider]

well it idels when i twist the throttle a tiny bit could there be slack in the throttle cable

thats not idling! thats throttle opening, your idle is controlled by the jets in the carb, take it off the bike, disasemble it and clean it all, if you`re worried about reasembly take pictures as you go for a referance.

[AllThreeWheels]

thanks for the help guys

[Billy Golightly]

Your pilot jet is either clogged entirely, or to rich. If you have a keihin type Pull your carb off, remove the bowl and next to the hex shaped main jet there will be a small tube into the casting and in the bottom of it is a slotted plug looking thing with a hole in it. Thats the pilot jet. Use a thin, narrow, flat head screwdriver and remove it. Note its # on the side (which is stamped in very very small lettering) and report back here.

[Dirtcrasher]

Yep, unscrew all the jets, grab a shot glass and spray real carb cleaner in there. Then toss the jets in and let them sit. Meanwhile, spray out every hole in that carb with carb cleaner and compressed air. The fuel screw on a 2 stroke will also need to be adjusted to get that engine idling fine. Make sure the fuel screw tip is in good shape with a good oring and make sure that there are no intake leaks in the rubber boot or reed block mounting surfaces.

Get it running and spray carb cleaner around all the gaskets and rubbers, if the engine sound changes then you are sucking air.

[Tech23]

Your pilot jet is either clogged entirely, or to rich. If you have a keihin type Pull your carb off, remove the bowl and next to the hex shaped main jet there will be a small tube into the casting and in the bottom of it is a slotted plug looking thing with a hole in it. Thats the pilot jet. Use a thin, narrow, flat head screwdriver and remove it. Note its # on the side (which is stamped in very very small lettering) and report back here.
What he said is correct......If your pilot is to rich, the idle speed will not seem to change much if any when turning the adjuster. One size leaner (than stock) and the adjustment knob (on the choke) becomes much more sensitve to change. Turning the choke knob counter clockwise increases idle RPM, and turning the knob clockwise lowers the idle RPM, by decreasing the the amount of FUEL FLOW through the idle circuit. You should be able to feel detents (notches) in the adjuster if you turn it slowly. Turn in the adjuster (clockwise) slowly until it seats lightly. DO NOT TIGHTEN, or damage to the adjuster and or carb could result. From the seated postion, turn out (counterclockwise) the adjuster 11 clicks (notches). This should be a good starting point to begin idle adjustment. You will more than likely have to turn it out even further to get it dialed in.......Tech23