Right cylinder smoke

When my stock intake seal on left failed, symptom was blue smoke only when blipping throttle, which gybes with what has been described earlier, that high vacuum is needed to draw oil into cylinder.

I replaced both seals with KW Viton types. Used a tool given to me by a member here which allowed spring compression and seal removal without pulling head of bike.
The original seals just crumbled apart when I went to pull them.

Honestly I've never heard of wet sumping being the cause of oil burning. I think I'd be examining the rings. Oil control ring on the right jug.

PeoriaCommando13 said:

Informative responses but not addressing my specific question.
My smoke is only on rt side and only for a minute or so after cold start. I suspect wet sumping and that would explain most of it
but why only the right side?? Im asking for thots so i know what all to inspect and what not to bother with. When its smoking it
does it at idle and proportionally more as you rev it but only for
a minute after a cold start. All other times, no smoke.
Thanks for any further comments, Tom

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What does the plug look like on the smoke side after you've gone for a ride?

Drain your dump just before starting the bike, if it still smokes then it's guides or bore, no smoke then it's wet dumping and can be ignored.

Bodger said:

What does the plug look like on the smoke side after you've gone for a ride?

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Last time out was a smokey startup and then no smoke for the 15
min ride including a 1/2 mile hill at a good pace.
Plug on rt was sooty, but several times before on longer rides it
looked great. I think it was sooty because it started out oily and
just needed more of a run than i did to clean it.
BTW, just drained the crankcase with cold everything, 50 deg oil,
and there was a total of 2 full cups! I replaced the cc plug and poured it back into the tank which took it from slightly low to
halfway between the marks. Now im letting it sit to see if it
drains some to cc after a day or two. If not ill ride it and check after. I know from experience with other bikes that wet sumping
will cause smoke for a while on startup. But i dont recall ever having it only out of one side.
Regardless, i have to fix the excessive wetsumping and that means
press regulator and or oil pump excessive leakage or just a bad scavenge pump. Comments? thks again, Tom

kommando said:

Drain your dump just before starting the bike, if it still smokes then it's guides or bore, no smoke then it's wet dumping and can be ignored.

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good thot ill go do it now. but excessive wetsumping has to be dealt with... thks, tom

PeoriaCommando13 said:

good thot ill go do it now. but excessive wetsumping has to be dealt with... thks, tom

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just started it up within 30 min of draining the crnkcase and no smoke at all! So that pretty much proves that wetsumping is
the root cause, why only frm rt side i may never know but if
i cure the wetsump then which side is a mute point.
If it was after a full season or just settingover the winter i wouldnt
care but this accumulated in the cc too soon....a couple of months and just a 150 miles of engine breakin riding. comments?
thks, Tom

Your right side is just a bit more worn than the left, not enough to show with normal oil levels when cold, only with a full sump.

You will get as many opinions about how much wet sumping is acceptable as you would asking for an opinion about what type of oil is best. Since the oil tank sits above the engine, and by definition no simple gear pump can totally seal itself, like any woman will tell you, gravity will eventually take its toll.

Bodger said:

You will get as many opinions about how much wet sumping is acceptable as you would asking for an opinion about what type of oil is best. Since the oil tank sits above the engine, and by definition no simple gear pump can totally seal itself, like any woman will tell you, gravity will eventually take its toll.

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Ha!, great one! yea,and i had another thot.... while riding the scavenge pump flows more
that the feed pmp so if you have some oil in crnkcase if the ride is long enough it should
empty or lower the level in the cc. My rides since overhaul have been mostly short stints
with days between while i fixed several minor problems. So much more apt for the scavenge
pump not getting enough run time compared to leak-back time. Hope this is the case and
i really have a more normal wetsump rate. The bike sure runs great otherwise. Thks, Tom

Lineslinger said:

As noted in the thread the RH valve seal popped off. Smoke free after repair.

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Good to hear. I have 2 RH4 heads in service here and I always suspect RH4 heads of cracking at the valve guide boss when I hear of oil consumption on a newly-rebuilt motor.