NOS Cyclone Fan Shroud.
$45 shipped or Best Offer.
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Sold

NOS Disk Brake Kit AM53943. This fits
340, 440 Cyclone and 340, 440 Liquifire Snowmobiles (S.N. -095000).
$21.00 shipped
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NOS Top End kit AM53528, five kits available. This fits the KEC 440/22 A/B/C engines as used in the X8,800 and Cyclones.
$25 each or Best Offer. Shipping is $5 per.
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NOS Gold Digger
carbide Studs 0.750 length
Open container of the following:
39 studs with nuts
34 washers
$75 or best offer
$10 shipping
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Snowmobile Star Studs John Deere Heat Treated Length .625 Inch 20 PK AM54921.
4 packs available.
$40 each or best offer.
$10 shipping per, Contact me if purchasing more than one.
2 packs left

NOS John Deere AM53943 Spindles for sale, two available. These fit 1976/77 Cyclones and Liquifires.
$10 each, shipping $10 per. Contact me if purchasing more than one.
Payment: Venmo or PayPal, contact me other methods.

Check your exhaust for a blockage. Did you replace the Power Jet O rings in the bottom of the bowls?

All the information that I have read indicates that the 800 used a black spring. You may want to reach out to the JD Sled Shed FaceBook group.

Yes, there is a difference of the clutches used on the CCW/Kioritz engines and the Kawaski engines. The bore is the same, but the offset is different. Comet 102C Primary Clutch 208306A (Kawi Powered Deere Applications) and has a 30MM shallow taper bore. Comet 102C Primary Clutch 212600A (CCW and KEC...

Check this our from the FAQ section
viewforum.php?f=5

I have the same sled an am able to set the carbs as per the Service Msnual. It sounds to me like the throttle cable had been changed sometime in the past and an incorrect cable has been installed.

It depends what you want out of them. The 78 and 81 are 2 completely different sleds. As stock the 81 has more rear suspension and hp. As Matt said, the 78 is more reliable to keep running. I own a 78 and I am not afraid to ride it on long distance trails. The 80 lig I had was a different story. I c...

Yes it is the same.

All great points, it also looks like the right side cylinder is running rich, possibly the spark is dropping out. is the CDI box still the oem Prestolite? . They are know to fail and cross fire. Get an Inline spark tester and check each spark plug with it running. Something else to check is the high...

Did you buy aftermarket needle/seat or Mikuni?