joshkidner

it runs good, and on a track stand when i rev it, it sounds great, the track spins and all. on the ground when i hit the gas, it goes about 3ft revs up and all then bogs/stops and sometimes a pop comes from the exaust (not loud like a backfire but just a pop) it is also smoking alot even at operating temp. but isnt like black smoke and just smells like normal snowmobile exaust. carbs have already been gone through.

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1987 chasis with 1985 597cc under the hood. Xtra-10, fox shocks, and a whole lotta speed!

joshkidner

also checked the choke plungers, none are getting stuck. ran perfect last year! new belt and sheaves in clutch have been cleaned out. this is an odd way for a sled to act to me, its puzzling! slides in carb all lift at same time and its getting plenty of gas.

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1987 chasis with 1985 597cc under the hood. Xtra-10, fox shocks, and a whole lotta speed!

Snowweasel

Could be a sign of low compression. Saw same thing happen to my buddies xlt before it crapped out. If compression is good and plugs look good, it's your clutches that need to be cleaned, or resprung.


Sent from my iPod touch using Snowmobile

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-my ride
2003 arctic cat zl550 (looking to sell)

joshkidner

thanks. i havnt tested it but i took the heads off and it looks remarkably good. i just dont understand how it ran so good last year and ever since i tried starting it the first time ive had nothing but problems! ill get a compression tester oor borrow one as soon as i can. im also going to buy some new br9's and use compressed air to blow out belt dust. will post results. thanks!

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1987 chasis with 1985 597cc under the hood. Xtra-10, fox shocks, and a whole lotta speed!

joshkidner

Any help at all would be appreciated. Here is a video, if you ask me the problem is obvious, but how do i fix it? http://static.photobucket.com/player...psb5e2eaec.mp4

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1987 chasis with 1985 597cc under the hood. Xtra-10, fox shocks, and a whole lotta speed!