LOWGEARED

iTrader: (2)

OK I ve been through 3 tanks in break in with the mach15 engine on my 3rd tank my temps ran a little hot at 250ish or so at 3/4 thrittle it bogged out ... what adjustment needs to be done with the engine!!

LOWGEARED

iTrader: (2)

ANYONE?

Serpentd

Dude, you need to richen the high speed needle IMMEDIATELY. The big needle screw on the top of the carb. Open it at least 1/4 to 1/2 turns (turn CCW or to the left). You are bogging because of a lean mixture. Not good for a new motor, or any motor for that matter. Get your temps closer to 180-200 for the first 5 tanks. Then start leaning out slowly for the next 3-5 tanks or so and reach a maximum of 230 degrees.

LOWGEARED

iTrader: (2)

Ok from closed I put at Factory settings 3 1/4 turns CCW and LSN at 3 CCW It wont start at factory settings it throws fuel through it like crazy and comes out the exhaust. For the first few tanks it did fine like that, but now seems to flood fast!

I think it might be these cheap C batterys from the dollar store? YOU THINK. I went through 4 batterys in a day!!

LOWGEARED

iTrader: (2)

3 1/4 turns puts me flush with the brass right?

LOWGEARED

iTrader: (2)

Bump

davo798

iTrader: (3)

for new engines that are very rich, pinch the fuel line as close as you can get to the carb to get them to fire. after you have finished break in then you can start to lean it out to get it between 200-225 and it should run nice for you and start right up.

LOWGEARED

iTrader: (2)

Man that is the first answer to a ? that has been buggin me all day !!! Yet such a simple answer..
Im gonna have to Idle it a little high at richer settings to right?

Artificial-I

iTrader: (17)

Your low-end is probably lean. Richen that. Also wrong forum.