Engine running rough at low RPM's

[hondaATCman]

Welp, I'm back again. This time my 110 is running really rough at low RPM's. Once it gets to midrange and up...its fine. I have to set the idle up very high and it pops crackles and misses when it is idling. Also, when it is decellerating from a WOT run it pops and crakcles ALOT. I know its not the timing so I'm open to any suggestions other than that. BTW, I know the rockers are supposed to have side-to-side play, but how much? Thanks for the help

[bigred110]

Try cleaning out your pilot jet.
Mine was doing that and I took out the pilot jet and cleaned and it ran better. Have you tried playing with the air screw?

[hondaATCman]

Yeah, I messed with the air screw for like an hour with no luck. I'll pull the carb tomorrow and let it set in carb cleaner overnight. This is the 3rd time :evil:

[hondaATCman]

Ok, well I think I figured out the problem... low compression because of a blown head gasket or just needs retorqued. I can hear a lot of air coming from the base of the cylinder and it has almost no resistance when pulling it.

[plkmonster2]

It has a lot of air from the bottom of the cylider? Or the top, between the head?

[hondaATCman]

I can't hear exactly where its coming from, but i'm about 90% sure its at the bottom of the cylinder and not between the head.

[plkmonster2]

If its coming from the bottom, then either it should have compression, since the compression is made in the top of the cylinder, or you have massive blow-by.