The choke only fast idles and so it wouldn't matter if you left it on. I think that you may have two different issues. I know that if you paid somebody to service the bike then you should not have to deal with this crap. I would buy new plugs and fit them correctly torqued up. Then get the bike warmed up properly on a run and find a quiet road. Accelerate hard and check the mirrors. If you are burning lots of oil then you should see a fair bit of smoke. Also, compare exhausts. If one cylinder is burning oil then one of the exhausts should be significantly blacker, The right colour after a run should be grey. Next step would be to check cylinder compression. If compression is good but oil is being burnt then it is most likely to be a valve seal. May be worth getting a Ducati specialist to check if you are not comfortable doing this stuff. Wouldn't cost much as it is not a very big task.
have to respectfully comment on two things, and only my opinion as ever (bstwtihnrpn) but leaving choke on most definitely matters and on a normal Monster 2 valve/carb bike will soon stall winter or summer if left on too long. Compression test using leak-down method is the best method to reveal all but crankcase compression can be seen easily for starters by inspecting breather hose emission.
Does that Monster have carbs? If it does then I am talking crap. My monster is injection and that is why it is just a fast idle. Agree that with a bike with carbs then the mixture is enriched by the choke.
I see what you mean, it is a late one, but OP refers to choke so assumed it was. I don’t think they did an injected 600 but I could be wrong.
Yea the first injected one was the 620 as far as I know so I don't think this is injected. But back to the original point about that, i've ridden with the choke slight up for the first mile a few times and the power loss i've been getting is 10 times worse than that. I didn't get a chance to get out last night as I didn't get in until late. Will try this evening.
Not necessarily so when the plugs are undone the sealing quite often does not rotate upon the sealing face, and it turns against the plug, which is why no witness marks are left .
Ie the washer stays rotationally still against the seat while the plug turns and releases it. I can see that but I still don't think those plugs were sealing against their seats - the op says they were only finger tight ...
Those plugs do not explain the oil loss, or suggest a stuck choke, I would have expected at least one of them to be black and very sooty if either were the case.
whether they were finger tight or not the problem lies elsewhere, especially the oil loss. Yes a new set of plugs tightened correctly will certainly rule those out.
The strange thing is that the op is not reporting any smoking apart from some white smoke from one pipe after switching off. Makes no sense ..
Certainly the oil problem lies elsewhere. I have to confess I've never had plugs that loose but it would at least seem possible that it could be responsible for strange noises and a lack of performance.
