michiganman18

I have a 1991 Yamaha Phazer 2, only dished out a couple of hundred bucks and looking back maybe i wouldnt have bought b/c the guy i bought it from was rude and hid a lot of stuff from me about the sled. But what done is done and i now need to know why it is smoking, it is a white smoke and isnt too noticable untill you rev up, then it just fogs ythe entire area, untill you let off the throttle, and it feels like it is almost cutting out on power but that may not be. Now i have not worked on any snowmobiles, just ATV's and outboards, as far as recreational use. Any ideas as to fix this problem, or check for issues, black usually mean rings, block, or cylinder damage; blue, oil of course, too rich, but white is puzzling, I've heard coolant but im not sure if this sled uses coolant or not, i do believe it is fan cooled. Any help would be great. What about antifreeze? Would there be any in a snowmobile thats causing it to smoke?
It isn't backfiring, starts in one pull, runs well, i thought i was noticing cut outs in power though when first started.

polaris rider

Welcome to the forum,

White could mean your running to rich.... are you letting it warm up for a long time? after about 15 mins take it for a nice rip around the house and then see if its still smoking alot at idle, if so probably oil leak, but it seems all old sleds smoke alot until warmed up real well(1/2 hour)


but for the cutting out issue, id go through and clean/rebuild carb..

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1999 AC zl 500, 3k miles2003 polaris classic 340 1200 miles-2003 polaris indy xc 500 1500 miles-2000 polaris xc 700 6500 miles-2003 arctic cat zl 600 1500 miles



"Dont let fear and common sense stand in your way!"

BC_Dan

The Phaser is a fan-cooled sled, so no antifreeze. Like Polaris Rider said, it's probably running rich. Sleds are jetted for cold temps, they always run rich in the summer. If it starts easily and seems to run ok, it's probably fine. I would wait until it gets a lot colder to do any serious adjusting...

Here's a link to Yamaha's online Microfiche, you may find it useful

My Yamaha Prompt - Parts Catalog

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2007 RMK 700 155", 2008 RMK 600 155", 2006 RMK 600 144", 98 Indy 440, 95 Prowler 550 2-up, 1990 Indy 650

RIP, destroyed by fire 1-22-2008
04 RMK 800, 05 RMK 600, 02 RMK 800, 97 RMK 700

http://www.avalanche.org/accidents.php

TCOLLINS

My phazer also smokes alot. Wait for winter and once you ride it for awhile it will probably be less smokey????

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1998 Polaris Indy 500
1996 Yamaha Vmax 600
1991 Yamaha Phazer II480
1986 Yamaha SRV 540*Freebee*