I’m ready!

Snowmoer the 81-up cleated Sportfire and Trailfire tracks are actually a little bit wider than the 80-down and DD tracks. They will rub on the insides of the tunnel if you use one.

Good afternoon. You can broaden your search a bit. The Sprintfire, Snowfire, 80-82 Spitfire, 79-80 Trailfire and 80 Sportfire tracks will also work on your Spitfire if you find a decent parts machine.

Hi, Deg. The tach from your Cyclone with the Prestolite ignition is not compatible with the Trailfire. Luckily, there are a lot of the Kawasaki powered sled tach kits available. New Breed Snowmobile Parts has them.

Hi, Deg. The tach from your Cyclone with the Prestolite ignition is not compatible with the Trailfire. Luckily, there are a lot of the Kawasaki powered sled tach kits available. New Breed Snowmobile Parts has them.

When you try to start it, does it engage the bendix? A starter can turn easily on a bench when there is no resistance, but not have enough torque to turn the engine over in the sled. I’m guessing you have a failed winding in the armature.

Steve, the wiring for your 800 should be set up like the 76 Cyclone as far as the engine to chassis connection is concerned. Here is a link to that wiring harness.
https://vintagesnow.com/John_Deere_files/76wiring.jpg

Good morning. The starters for the Kawasaki powered sleds interchange. I’m not sure about the jet ski, though. I’ve never looked at on up close.

Thanks for stopping down, Brian. It was great visiting with you and talking about these old junkers!

Yup, just in the LTD 4/6.

Properly designed twin pipes, Kawasaki six port cylinders, Deere heads with combustion chambers cut for proper quench, and Wiseco pistons along with an HSR off an 82-84 will go along way to waking it up. Kelly Voss would be a good person to get some information from as he has done a fair amount of d...

That all depends on how deep your pockets are. Can it? Yes. Affordably? No.

Do you have a price and location?

Here are all the ‘78 CC race bulletins.
http://www.vintagesnow.com/John_Deere_f ... LLETIN.pdf

Looks like yours had the added support plate on the rear tensioner bracket that was called out in the racing tech tips.