1992 Polaris Trail boss 250.

[tbonegreek]

Hi I am new here.
I have 92 trail boss It is hard to start. When starting it seems to take a while of cranking before the engine wants to run.
Then it slowly picks up momentum until it is going fast enough to run on its own.
I cleaned out the carb and now it doesn't want to idle unless the slide is about halfway up the needle sleeve.
The throttle cable bolt is all the way up If i loosen it anymore it will not be connected.
Can anyone tell me what the settings are for the carb?
Nedle ring setting aswell as pilot air screw settings?

 

[sleded1]

Check your compression, it's most likely below 80 psi and you need a top end rebuild.


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[hdkawi]

i agree you got low compression. use some either to help u get it started

 

[tbonegreek]

Thanks for your help.It appears previous owner had a piston and rings one size to small.I took the head off and could move the piston very slightly from side to side inside the sleeve.Have correct size piston and rings ordered.