TT500 YAMAHA

[jimg1au]

hi my crankcase is filling with oil could the oil tank drain into the crankcase if it were mounted obove the engine and the oil line routed up to the tank instead of std
cheers
jimg

[brent j]

Hey Jim,

Your problem is quite common.

The oil tank on an XT/TT is in the frame and above the motor so don’t worry about that. It really needs to be higher to feed a good supply of oil to the engine.

In the clutch cover is a spring loaded ball and rubber seat. It’s there to stop the oil running from the tank into the sump. When the motor starts the oil pressure opens the valve.

The rubber seats do harden and perish. It’s a couple of hours work to change it and the seat and ball cost about $10.00, you’ll also need a clutch cover gasket.

Hope this helps

Brent

[jimg1au]

is that part nos
93503-08007 ball
583-13113-00 seat
do i have to pull the ignition apart to do this.mine is points
cheers
jimg

[brent j]

To answer your three questions Jim

Yes
Yes and
Sadly yes, you do need to remove the points and related bits.

Brent

[jimg1au]

thanks brent i will order the parts tomorrow.i havent used points since 1978 so it will be new again to me i have a manual so it should be ok.do i need a dial indicator
cheers
jimg

[brent j]

No dial indicator Jim, you can get it close enough to run on the timing marks than a timng light to finalise it

brent

[Tim754]

Jim if it is timed OK now ,how about the old couple of scratches with a scriber to align back too on reassembly method? then timing light if needed. Brent is spot on with the problem and fix sorry I was a bit slow. LOVELY HAGON MMMMM Tim

[pancho]

g/day are you sure  it is really over filling the crank case, they normally leave a lot of oil there. my elstar mounted xt 500 was pumping oil straight out the exhaust pipe which i thought was caused by to much oil laying in the crank case but no! the cause was it had a cast iron oil ring which can not cope with the quantity of oil being splashed around.the fix was a steel segmental oil ring.cheers wally,

[jimg1au]

wally i drained almost 4 lters from the crankcase.mine is in a hagon frame and my oil tank holds no mor than 2 ltrs. it is fixed now so i will see you at nepean on the 29th
cheers
jim