I pulled my sled out of storage from last year. I pulled and pulled on it without any success. I had some 40:1 mix 93 octane fuel sitting in the garage. I pulled the plugs and put about a tsp. in each cylinder. I gave it a pull and it fired right up but immediately make a loud sound. I...

Hi I just picked up a 1998 Mach 1, was looking for a Z but I could not pass this one up Had a few general questions I hope I am using this board correctly for this posting. I have owned many 90's Doo sleds in the past but have never owned a Mach. 92 Plus, Formula's Z's, 670HO, closest thing...

I have a 1999 Ski Doo Formula III with the standard track and tunnel. Does anyone know of a two up seat that can replace the one up. They use to make 2 up seats for the old Plus and Mx models but I cannot find one that would work. The Grand Touring seats are too long for the tunnel. I tried...

I've got a Formula III that I will be running next year in an oval racing class. The class does not allow any porting, but it doesn't have any limits on what thickness base gasket you can use. Race fuel can be used in the class. I am wondering if I'm better off using a thin base gasket to...

I have a '98 Formula III 600 triple/triple. 2 of the 3 pipes rotted out yesterday on my ride and are un-repairable. I would like to convert the full system to that of the '98 Formula III 700 with a collector into one single pipe because I have easy access to a full system on craigslist. Does...

I am new to Ski doo, and have aquired a 98 formula III 700. I would love a manual if anyone has a suggestion on where to get one online. I have tow questions: 1) where is the battery and how do I ge to it? 2)It ran two weeks ago, now it wont fire , any ideas?