MOPED ARMY

I used to get a lean detonation sound on my maxi too.

Just rolled off the throttle until it quit. Those carbs aren’t perfect. If you’re going slow, you shouldn’t be holding it wide open. Especially up hill. It will only go so fast. So roll off throttle until you feel like you’re slowing down then give it just a bit more.

Sorry, definitely check for air leaks too.

The air leaks want a bigger jet to compensate for the extra air. You may be over jetted once you button up the leaks. A small exhaust leak could also cause this sound. Make sure your gasket hasnt blown out and that your nuts are tight still.

10mm socket/wrench all around for the engine.

If updated and tuned, they can be pretty ballsy mopeds with stock jug and pipe. Mine was derestricted ftom the moped wiki, new stock replacement air filter and stuffed crank, new bearings and seals and it did 40.

Whoa

Don’t tighten them really hard. Ever.

It should be tightened down in a crisscrossing pattern a little at a time.

I don’t use a torque wrench because experience lets me feel it. I could give more detail if you want.

Anyhow, I’ve blow out a head gasket before and I think it had something to do with how tight it was on the studs. Like, it was already under strain from the holes being too close.

Maybe had nothing to do with it at all.

A blown he’d gasket makes a distinct sound. From my experience the engine will not run.

ok. thanks!

well i did not tighten them HARD hard, i just did it so it felt right. and i did tighten in a criss cross pattern. im starting to lean against a blown exhaust gasket. - because since just recently i had a pedal-arm from a bicycle on the moped, and it sligtly hit the exhaust when I used the pedals. So my guess now is that the old pedal hit the exhaust out of place and maybe caused an exhaust leak where the piston and exhaust meet.

i am currently not in the place where my moped is so i cant take a video atm, and i cant really find any video that resembles the sound that it makes. :-)