Snowmobile Fanatics banner

1 - 9 of 9 Posts

·
Registered
Joined
·
1,099 Posts
Discussion Starter #1
my friend has a 93 polaris indy 500 L/C, last winter we had trouble with it starting, we solved that problem, however it doesnt seem to have the giddiup and go it once had (no top end) i could beat it on a 488 trail, once in awhile it had a slight hesitation, we are pretty sure this could be a carb problem, any other suggestions would be helpful.
 

·
Registered
Joined
·
2,729 Posts
Ok, i'll try to help ya out on this one but once again a little more info is needed. What caused it to start hard? What did you do to fix it?

I'll take a couple stabs in the dark on it and you can let me know how it goes.

My first suggestion is to run it at top end or whereever you might get it to and then check the spark plugs for signs of an overly rich or lean mixture. Make sure that you do not have an obstructions in the airbox (leaves, weeds, paper, anything that could cause a blockage). Check your choke adjustment if you think it is running too rich. The other thing i would check is where the drive belt is riding in the secondary clutch (driven pulley) and make sure its not riding too low in the pulley. Make sure the belt isnt too narrow, or too streched out. The last thing i might look at if all else fails is to check the exaust pipe for a mouse, chipmunk, or squirrel nest (put hand under exaust outlet and make sure you have a good flow coming out, make sure exaust flow increases with RPM)

I would put my money on partially plugged main jets in the carbs.
 

·
Administrator
Joined
·
13,091 Posts
Ah, the classic complaint.

Check how high the belt is riding in the secondary clutch. If it is not about 1 to 2 mm above the sheaves, there is a cam on the side, loosen the 3 bolts and turn it, I think clockwise. Then tighten it back up and take it for a spin, then see how high the belt is riding. It should be 1 to 2 mm above the top of the sheave. This will greatly improve bottom end. If you make it ride too high the belt gets too tight and the belt squeals when the machine is idling and it sometimes even drives away at an idle.



"Might Be Crazy But I Ain't Dumb" - Cooter
 

·
Registered
Joined
·
11,943 Posts
I's a good thing you guys are around here answering questions because I have been VERY busy lately. One stupid class in school ruins the whole day.
Anyways, gotta read 40 pages for tommorow. See ya later.

 

·
Registered
Joined
·
2,729 Posts
No problem erick, thats why i joined up to this forum. I share what i know and i expect others to share what they know. Thats the whole point of this forum right? Anyways the more knowlede we have the better. And when i have time i will share everything i know about the precious sleds we ride.

snowsnowsnowsnowsnowsnowsnow
 

·
Administrator
Joined
·
13,091 Posts
Ever since people started posting here, I've been posting. I enjoy it greatly.



"Might Be Crazy But I Ain't Dumb" - Cooter
 

·
Registered
Joined
·
1,099 Posts
Discussion Starter #8
but if it wasnt for this site, we'd all be broke from shop charges, and wouldn't be able to ride our toys this winter, so my hat(helmet) is off to you
 

·
Administrator
Joined
·
13,091 Posts
Thanks man, we do our best.



"Might Be Crazy But I Ain't Dumb" - Cooter
 
1 - 9 of 9 Posts
Top