Cylinder #1 Burns oil ONLY when HOT

[mellco]

The saga continues. My 1996 RS that I recently purchased and have been working my way thru its issues has come up with still another problem. If the bike is left running at idle all is ok. If you take the bike out for a ride and get it hot cylinder #1 smokes/burns oil real bad. Shut it off let it cool and start it again all will be ok till you take it out for a ride. I found oil on the outside of the muffler for cylinder #1 about 1/4" back also inside the muffler ( they are slash cut mufflers). I pulled the plug for #1 and it was ok, also compression for that cylinder is good.

[RandyR]

My 1st impression is that you may have an oil leak in the heads somewhere.

 

If you were burning oil, your plug would normally be fouled.

[mellco]

My 1st impression is that you may have an oil leak in the heads somewhere.

 

If you were burning oil, your plug would normally be fouled.

 

Like thru valve seals?

[RandyR]

Like thru valve seals?

 

sounds like a possibility.

[MiCarl]

I'm wondering how you know it's burning oil and how you know it's cylinder 1?

[mellco]

I'm wondering how you know it's burning oil and how you know it's cylinder 1?

 

The 96 Rs has 4 to 4 exhaust so isolating the exhaust is simple.As far as burning oil, blue smoke from the pipe with the smell of oil is the other giveaway.

[frogmaster]

Valves Serviced since 1996? Valve Adjustment & Seals sounds very likely here with what you described so far. I see your in PA give skydoc17 a PM or Call for 3 cents

Edited April 4, 2010 by frogmaster
skydoc17 info added