Quote:
Originally Posted by 300ec
Thank you for your reply, Jacobi!
1, it already was when I bought the bike in the summer 2011
2, 10 - 15 hours after the change of the piston
3, I changed the piston and rings (and other parts), raised the needle one notch
4, I feel a loss power off the bottom
5, I'm sorry I do not understand what it means((( (same as 4 - loss of grunt, loss of power/torque)
now riding at -10 degrees Celsius (14 F) - everything works fine, the sound was gone, the bike pulls very well
the engine behaves badly when -20 degrees Celsius (-4F)
These are my jetting
Throttle valve/slide = 7
N1EF (2nd clip)
main jet 180
pilot jet 40
air screw setting - 2.5 turn out
I think I should change to smaller jets
sorry for my bad English(
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So from this last post I understand that the bike runs well right now, and most of the time. Its only when things get colder the bike lacks power just off idle and sounds flat/dull?
Does it feel the same as when you try to take off without warming the bike up properly? Have you tried pulling the choke on when its acting up to see if it helps. Does it do behave this way every time you get to -20C?
Did you try turning the Air Screw in to richen the pilot? As it gets colder the engine will want more fuel. If it only happens when its colder out it could be telling you something.