31-03-14, 01:08 PM
(29-03-14, 08:35 PM)reddave101 link Wrote: Had exactly the same problem which was doing my head in. I ended up stripping the engine completely to no conclusion..BUT it is now cured.. Very simple after all that.. Changed oil, filter to high grade 10/40 and made a oil filler breather. The only reason I came to this check was from time to time I noticed the bike had more torque than before and the clutch would become stiff and heavy. So after no end of research and came to my own conclusions I ended up thinking there may possibly be too much air building up in the crankcase and causing loads of torque to release the air pressure because after a short blast the torque would slacken off and would get a rattle..
Now just to point out my fazer 600 98 model has a few performance upgrades which may not of helped with mine but after I've made a oil breather to replace the filler cap, blocked off the air inlet to the air box and rerouted the crankcase breather pipe, all rattling has gone and even the fuel economy is better, and throttle response is 100% better. Hope that gives you some more insight into a cure for you..
interesting! would be worth doing a little how to on this or at the least a few pics please