polaris indy 650 clunking sound when take off - Snowmobile Forum: Your #1 Snowmobile Forum

superrc84 · 02-09-2013, 08:24 PM

just got done riding my 1989 polaris indy 650 for the day and noticed at takeoff that there was a constant clunking sound. It went away when i got up to speed but then when i let off the gas it makes same sound. Speedo just went out cause of a snapped cable, got a new cable put it in and still doesnt work. could it be the bearing inside there? any answers will be helpful thanks.

**BC_Dan** · 02-09-2013, 08:38 PM

Bearings are always suspect when the older sleds lose the speedometer. Pull the belt, remove the secondary, remove the speedometer adapter and take a look. You will have to clean out the grease, but be careful. If the bearing has failed, there will be sharp pointy things in the grease. Trust me on that.

superrc84 · 02-09-2013, 08:47 PM

so could that be making the clunking sound?

xflyer53 · 02-09-2013, 09:38 PM

Sure can! But it is one of a few possibilities. It is a quick easy check. Very advisable to follow BC Dan's instructions. If it is good you can cross it off the list. If not, you'll be glad you checked!

buffalo716 · 02-10-2013, 09:09 AM

Did you try changing your belt? A wear spot on your belt will give you a clunking sensation, and it can feel like something is binding in the track or a bad bearing. I'd try changing the belt before ripping anything apart.

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buffalo716 · 02-10-2013, 09:15 AM

Sorry, just read your post a second time. Scrap that belt idea.

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