uriarc Posted June 24, 2009 Share Posted June 24, 2009 Hello all, I am after a little advise / answers if possible. I have recently picked up a 1997 Thundercat with 28000 genuine miles on it. I have done approx 100 miles on it so far, but each time i have riden it, the next morning there has been an oil mark on the garage floor from the air box drain hose (about the size of a 50 pence peice). Can someone tell me WHY!!!!! Link to comment Share on other sites More sharing options...
sluggo Posted June 24, 2009 Share Posted June 24, 2009 Hi, The oil would be coming from your engine breather. The three main reasons for this are too much oil in crankcase, a well overdue oil change or a very worn motor. If the mileage is correct and the bike has been reasonably maintained the motor should be OK. Change the oil and filter. Use a good quality 20-50 oil and do not overfill. Pull airbox apart and clean up excess oil. Check plugs for oily residue and clean or replace. If problem continues after another 100 miles have a mechanic check the compression. Regards. Link to comment Share on other sites More sharing options...
Recommended Posts