Originally posted by rodneybarrett
thanks for the posts.
I pulled the carb apart last night and found something interesting. The banjo fitting (the black plastic thing) did not seem to have the hole go totally through it. What I mean is that at the end where the circle is, it looked like some flashing was still on there and the hole was only open about 60%. I took a drill bit the same size as the hole and cleaned out the flashing. All the o-rings looked good.
Could this cause the problems I have been having?
I am still going to try my mt12 carb on it to see if it helps.
Also, I'm still on this whole filled crank issue. For some reason, I can't let it go. I just think that the difference in volume has to have some kind of effect on the engine. Attached is a picture of how the crank is suppose to be. When I get home tonight, I'll take a picture of my crank so you can compare
I think you have found your problem.
For the crank, I have run a crank exactly like the one you are describing (lightened by boring it) with no fill and the motor hammered until I popped a rod on it one day. It had 27 litres of fuel through it. I cant see it hurting your engine. Anyways if you are not happy return the crank for a filled replacement.