carburator screws turning on their own

elachevr · Post by **elachevr** » Mon Feb 02, 2009 9:51 am

Just wondering if anyone has a solution to this problem. I adjust the screws to get the engine purring but when i'm out riding they unscrew. I almost lost the air screw this weekend while riding.

I believe this may also be the reason why my engine is back firing. It blew the impulse line right off.
thanks
Eric

wycrumb · Post by **wycrumb** » Mon Feb 02, 2009 11:10 am

Are there springs on the screws?

elachevr · Post by **elachevr** » Mon Feb 02, 2009 11:44 am

yes there is. The spring seems springy enough if that's a word. Could it be excessive vibration from the motor?

deereoftheyear · Post by **deereoftheyear** » Mon Feb 02, 2009 12:25 pm

A very very small amount of blue loctite should keep the screws screwed in.
-Luke

JDT · Post by **JDT** » Mon Feb 02, 2009 1:30 pm

Is the little o- ring and brass washer in place also?

Just a note that is the adjustment is too far out beyond the spec the springs are not going to hold it.