1985 indy 400 ? - Snowmobile Forum: Your #1 Snowmobile Forum

cfish · 05-15-2012, 02:26 PM

There is a buch of small diameter clear tubing that is completely dry rotted around the handle bar area where did it go so I can replace it there is a fitting on gas tank right info the gas cap that's the same size also anothere one on break caliper
Second question it I hit the throttle the engine stays running around 3000 rpms for a few minutes unless I hit the break . The rubber in throttle cable has 1/2 inch crack just threw rubber Or is it the carb slides or idel screws it was pro tuned this past winter and fuel lines replaced I just cleaed clutch today

JheLrey · 05-15-2012, 05:57 PM

Rubber tubing goes to top of the fuel tank for vent.

Replace the cable, clean the carbs, etc. My GF has the exact same sled.

cfish · 05-16-2012, 07:23 PM

How do out remove the drive belt? The belt Makes a squeal noise some times after I hit brakes to stop track at idel . How do u ajust the amount of belt out of secondary its About 1/16 inch out

**BC_Dan** · 05-17-2012, 12:15 AM

To remove the belt, you either need to pull up hard on the belt to pull the belt into the secondary, or turn the movable sheave counter clockwise and push away to open the secondary. That should give you enough slack to remove the belt. When the belt goes down into the secondary, I use a piece of old belt and jamb that into the secondary to keep the sheaves open. That way, I don't have to twist and push twice!

In the older Polaris secondaries, you will need to disassemble the secondary and add a shim to increase the distance between the fixed and movable sheave. That will increase belt deflection and should stop the squealing.

I would also check the primary for build-up of rubber residue. If there's a black ring low in the primary, it's possible the belt is grabbing the rubber and sqealing instead of slipping against a clean clutch surface. If there's a rubber ring, clean that out and see if it helps.