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Cold Start Smoke

  • Thread starter Thread starter Anonymous
  • Start date Start date
A

Anonymous

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Hi every body,ive got a problem with my GS1000E when its started from cold it smokes realy badly for a couple of minutes then runs as normal with no smoke at all ive been told that it is the valve stem seals that have gone.
Has any one else had this problem and is it big job to do ?
Or could it be some thing else ?
Apart from this she runs fine and dosent use excess oil and has lost no power.
Trev
 
Next time you warm it up take a compression reading just to make sure the rings are in decent shape; it sounds exactly like the problem my bike had. I'm in the process of changing the valve seals now, you do have to remove the cylinder head to replace the seals but on the upside it will give you a chance to do some exhaust port polishing and lap the valves!
Depends on how you look at it :?:
 
White Smoke on a cold day is normal, blue Smoke or Black is another matter. What color do you have and what do all the spark plugs look like?
 
It does sound like the seals. What oil are you using? If you're using 10/40 and go up to 20/50, you may buy a little more time if you're in no hurry to replace the seals.
 
I should have told you this in my last post but when my bike started smoking a friend told me to take the exhaust header off and look inside the exhaust ports, when I did I could see oil leaking down a couple of valves which confirmed it was bad seals.
 
SOmething that may help is to park it on the centerstand
 
Its blue smoke so its got to be oil burning,it seemed to get worse once I changed the oil at the weekend,its got loads of power and the plugs arnt oiled up so im hoping its nothing bad wrong with her.
Trev
 
Exhaust side valve guides. If the plugs are clean then the intake guides and rings are probably OK. You might be able to sneak new seals into the exhaust guides without removing the head, depending on how they are sealed. If they are sealed by close tolerances to the valve stem then machining is needed. Rubber seals on top might be able to be replaced. Ask Keith Krause, he has one and knows all about those engines
 
The head HAS to come off! The frame is in the way for #2&3 cyl
 
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