DeuceRooster Posted June 22, 2004 Report Posted June 22, 2004 Well as my first mod I've decided to gear down a bit. I've ordered a Renthal 13T front sprocket that should be in Friday and I'm going to install it myself. Could someone give me a quick explanation of what to do? I would assume I just need to take the cover off the side of the engine to access the sprocket then take the large nut that holds the sprocket off. However will I need to adjust some slack into the chain so that I can get the old sprocket off then install the new one and retighten the chain? Also most importantly anyone know what size the nut that holds the sprocket on is? And do I have to use a torque wrench when reinstalling it? Thanks in advance for the help guys. I owe you Quote
BenBB Posted June 22, 2004 Report Posted June 22, 2004 The nut is like 32mm(?) but a 1-1/4" socket will fit. It's an easy job, the biggest pain in the ass is adjusting the chain when you're done. Here's a quick how-to: Remove the left footpeg. Remove the shift lever. Remove the stator cover. Pry the lockwasher on the front sprocket flat. Have someone stand on the rear brake and/or stick a bar through the openings in the rear sprocket and rear brake rotor so it can't rotate while you take off the nut. Use that 1-1/4" socket and a breaker bar to loosen the nut. Pull off the nut and washer (the hollow side of the nut goes towards the inside). See if you can slide the sprocket off the countershaft without breaking the chain, if so you can just set the new one on the chain and slide it onto the shaft; if not try loosening the chain adjustment and see if you got the slack; worst case you gotta take off the master link of the chain. Installation is just the reverse, tighten the nut but don't put a 6' cheater on it or anything (I never use a torque wrench but I'm sure the Clymer manual has a value for it), and remember to keep the lockwasher centered on the splines and then bend one side over a flat edge of the nut. Then adjust the chain (ugh). Quote
DeuceRooster Posted June 22, 2004 Author Report Posted June 22, 2004 Exactly what I was looking for, thanks for the info. Quote
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