1998 Polaris Xplorer starts and quits

pajeepguy · May 11, 2011

We have a 1998 Polaris Xplorer 300. Havn't had it running for about a year. It cranks, has good spark but will not satart without starting fluid. 1 shot in the carb, full choke on and it starts and runs, on very high idle for about 45 seconds then quits. Another shot of ether and it starts again and again shuts down. I can't slow down the idle using the idle screw on the carb. and when I move the chock lever to middle or off, it still shuts down. Any ideas from the xperts?

GEARHEAD01 · May 11, 2011

the reason it runs on high idle then quits is because it is on straight ether. You r not getting fuel intothe carb. i would start with cleaning the fuel tank and lines and carb. also rebuild the diaphram pump and check your pet cock. if that is all ok then i would say that you have a vacumm leak causing your vacumm fuel pump not to work.

Your friendly neighbourhood mechanic.

**Ajmboy** · May 12, 2011

I agree with GEARHEAD, sounds like a carb issue, no fuel.

* Added manufacturer to thread title.

pajeepguy · May 12, 2011

Well, I took the carb apart and found nothing visibly wrong with it. Didn't check the petcock. Not to sound like a complete doofus but where is the diaphram pump located excatly?

yamaman · May 12, 2011

does it idle at all?

GEARHEAD01 · May 12, 2011

it will be right under the fuel tank a part of the fuel control valve.

pajeepguy · May 13, 2011

It does not idel at all. I will check the items you suggested and get back to you guys. Thanks for now.

hundailin · May 16, 2011

first of all why trying adjusting something u not professional do you. after long stops just drain old fuel try to run without spark plug .u answer u question was running a year ago the vaporises.if u adjust something remember what u did .the carburetor made of aluminum from long period of time hi gets corrosion in side .but if cleaned already so u good.sorry for my English. good luck

**Ajmboy** · May 18, 2011

first of all why trying adjusting something u not professional do you. after long stops just drain old fuel try to run without spark plug .u answer u question was running a year ago the vaporises.if u adjust something remember what u did .the carburetor made of aluminum from long period of time hi gets corrosion in side .but if cleaned already so u good.sorry for my English. good luck

I agree, drain the old fuel if it has been sitting for a long time. I still feel that carb needs a rebuild.