The belt that comes on the sled is a 127 Skidoo belt and it is too soft and creates inconsistency in the engine rpm, the gold series belt is too hard of a compound. The best belt we have found and recommend for the sled is the Dayco Ultimax 2 belt and the correct belt is Part# 138-4332, not the belt that the Dayco book lists (144-4353). Also be sure that your clutches have correct center to center and offset. -- Bill
Hey bill, Why is the 4332 better? I see that it is a bit wider and a little shorter than the 4353. Is that better for drag racing? I phoned they're tech line and they list the 4353 for the renegade but say you can also use the 4332. Will i see better top end with the 4353? Sorry for all the questions but i have always run OEM skidoo belts. Right now im running 127's on my sled and ladyk's 02 mxz700. They have a bit over 2000kliks on them and are due for a change soon. All they had in stock was the 4353 i hope it works as good or better than my stock 127.
Bill whats with the belt's?? 138-4332 vs 144-4353. What would you on a 97 670 mxz
Also the machz belts 140-5157 vs 138-5120.
Thanks in advance for any info
138 belts are 1.38 wide and 144 are 1.44 inches wide. I tried the 144 and didn't pay attention. Funny things happen when the belt won't shift all the way back down in the primary.
I have an early 1970s Bombardier Ski-Doo single cylinder. I need to lower the primary clutch engagement rpm. What spring and weights would make it possible to lower the engagement of the primary clutch. Thanks for any knowledge you can send my way... Chevysteve.
I wasn't interested in a new sled. Was satisfied with my 16 4-Tech 1200 Renegade and my 17 900 ACE Renegade. Dealer talked me into trying his personnal 19 900T Renegade with a chip and reflash. Claims it puts out 190 hp.
Besides being quick,and fast it doesn't lag and handled well. So I...
Hello
My snowmobile is skidoo Formula MX XTC, model year 1995. My skidoo front light work poorly (only 3 volts given) and i was wondering where is the battery located? Or does this skidoo have battery at all? Engine is rotax 467. Anyway there is something wrong with electrics.
I ride a 2001 ski doo touring 500fan, and over the past year have spent a lot of time fixing issues with it (it was sitting unprotected in a backyard for 5 years). I cleaned the carbs, fixed some electrical contact issues, and redid much of the fuel system. It used to bog down when I went past...
First time for the season the brakes lockup and got hot. and continued to do it all day. So replaced the caliper and dot 4 brake fluid cleaned reservoir and tried brakes seemed to work fine. Go out again brake lockup.
Can my rotor be warped causing this brake up?
Thanks in advance
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Chevysteve · updated 
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