So my bike (S2r1000) has been running a little rough after it got kicked over a few months ago. Its smoking a bit when initially on the throttle and also on decel. It's white/ blue smoke. I got it to run slightly better but it still is sligtly.
Also it is not leaking any oil, and I noticed my oil light started coming on spiradically when coming to a stop, so I did the oil change about 2 weeks ago. I'm running the full synthetic 10-40. The oil light was fine for a few days and then started coming on again when I came to a stop (bike still idling) then progressed to while riding it would pop on for a minute and go back off. Now it stays on constantly!!
Any ideas for these two things? I'm thinking oil sensor maybe? How do I check to see if that's failing? What else should I check out??
Most likely it's the sender, but you should hook up an external pressure gauge to be sure.
Hard to say about the smoke.
Time for a compression and a leak down test. If those are good it's probably valve guides and or seals.
How old is the gas? That could account for some rough running.
Quote from: ducpainter on September 22, 2013, 03:03:14 PM
Most likely it's the sender, but you should hook up an external pressure gauge to be sure.
Hard to say about the smoke.
Time for a compression and a leak down test. If those are good it's probably valve guides and or seals.
How old is the gas? That could account for some rough running.
The bike isn't really running rough anymore. I dd it, so go through gas pretty frequently. It just hit 13k so I wouldn't think the valves would be going bad already
What #s are good for when I do a compression/ leakdown?
I'd look for warm compression numbers around 150 psi with the cylinders being within 10% of each other.
Leakdown is a percentage. The lower the number the better..
1000 motors were known for lousy guides. All Ducati motors are known for lousy factory guides IMO.
The smoking might be cured with new guide seals for a while.
Quote from: ducpainter on September 22, 2013, 03:25:55 PM
I'd look for warm compression numbers around 150 psi with the cylinders being within 10% of each other.
Leakdown is a percentage. The lower the number the better..
1000 motors were known for lousy guides. All Ducati motors are known for lousy factory guides IMO.
The smoking might be cured with new guide seals for a while.
Is there a better aftermarket guide to go to?
I honestly don't trust myself to do the guides on it, I'd want to know for sure the valves are seated fine and the clearance and everything is fine
Quote from: DucDucGoos on September 22, 2013, 07:35:00 PM
Is there a better aftermarket guide to go to?
I honestly don't trust myself to do the guides on it, I'd want to know for sure the valves are seated fine and the clearance and everything is fine
Yes there are, but it isn't a 'bolt on' item. You'd need a shop to replace guides.
You should figure out what's wrong first.
To add to what Nate said about leak down, no air should come out of intake and exhaust. If the smoke isn't too bad, next time you or your shop does a valve adjustment check clearance between the guide and intake valve. The maximum wear spec is .08 mm. The proper way to measure would be to disassemble. You don't want to do that, so just wiggle in the same plane as the rocker and measure with a dial indicator. Less than 1.6 and you are good. Just replace the seals. Educated fingers can skip the dial indicator.