I have a 2013 F1100 Turbo. From factory, the jackshaft flexes up to 180 thousandths of an inch and the bracket that holds the jackshaft bearing on the clutch side comes attached to the engine. Every time you let off the throttle, the belt takes the brunt of the force from over shifting and it heats up. Guys have spent thousands trying to fix belt blowing issues by installing new clutches, jackshafts, etc. If you want to be done blowing belts, especially if you have it tuned up (I have 240 horse tune, cold air intake, extended track, Bikeman Clutch kit), you'll have to replace a couple parts. The bracket that holds the jackshaft on the secondary side has to be replaced as well as the jackshaft. The new brace will stop the overheating on deceleration and the heavier jackshaft will keep your secondary from pulling out of parallel when you're accelerating. This should have been addressed right from factory and a couple engineers did in fact lose their jobs at Arctic Cat over this. They now work at Polaris. lol. Scott Taylor Engineering still makes these parts and he does them well. For the double approach fix, you're looking at just shy of $1000. That's a bit to spend but better than having a $5,000+ paperweight that you don't want to ride because it constantly blows $120+ belts.
