The Air filter does not seal completely! Allowing saw dust etc into the carb causing starting and running problems, That's not good! design fault! Maybe? If you remove the Air cleaner and you can see dust in the carb inlet you have probably got a carb full of it! so the carb will have to be removed and cleaned.
Only do this though if you are competant!
The best method is provention! (Don't let it get in there in the first place!) On mine, I have added two rubber O'rings to the outside of the round hole which sits down into the carb intake and a bigger O'ring stretched around the outside of the Air cleaner to carb mount, so when it's all put together and tightened it makes a perfect seal!
Sorted!
Not quite!
If you look inside the Air cleaner you will see the mounting hole is not a plastic tube all the way through? And the securing Finger nut does not have a round seal where it meets up agianst the Air cleaner? This also allows dirt directly into the carb! whats going on with these designers?? I was lucky enough to find a plastic tube that fitted into the Air cleaner hole that went through to meet the hole in the bottom, making a tube right through! It also reduced the hole to the same size as the mounting bolt that goes through it. Failing this, you could always mount the Air cleaner over the mounting bolt and apply some (silicon) sealer compound around the top where there is a gap between the bolt and Air cleaner. Sorted! At last!
I hope this helps if you are having this Dirt in the carb problem.
I have had no Dust in the carb trouble's sinse!
I wish you the same.
Cheers!
Frosty.
Frosty
April 2008