Moped dies at high speed or after 30 seconds?

Hey guys, Just got my moped back from Steve's moped, got a new carb, 70cc kit, tecno old school pipe, and it dies at high speed, very odd, ill drive around for 25-30 seconds 25 mph, then crank it above 30 mph and it seems to just die out, no precaution or nothing, just totally dead. this happend 3-4 times last night then i just said screw it and went inside, it was like 20 degrees outside if that helps at all. I started the bike using the choke, drove around a bit, turned it off. I'll have to get the exact specs of the carb/kit/jet when i get home, but i still have the stock air filter as well if that matters. I dont want it to be too loud. Is there some kind of speed limiter? is it too cold to ride the bike? am i not getting enough fuel? its not like the bike is bogging, as soon as it starts back up again (a few kicks) i rip the throttle and go, no problem. what is wrong?

Re: Moped dies at high speed or after 30 seconds?

I'd go back to Steve's and find out what's up. I'm sure you paid good money to have all that done. They should be able to give you the info you need.

Moe

Re: Moped dies at high speed or after 30 seconds?

fouling plug?

Re: Moped dies at high speed or after 30 seconds?

maybe running it out of gas .

lower the float in the carb.

Re: Moped dies at high speed or after 30 seconds?

oops...or raise the float , whichever allows more gas in

Re: Moped dies at high speed or after 30 seconds?

It sounds like it could be a fuel flow problem. Make sure there is a strong flow of gas to the carburetor. If not you'll want to make sure the fuel valve or fuel filters are not clogged with debris. It could be also be a float adjustment issue.

Re: Moped dies at high speed or after 30 seconds?

how do i adjust my fuel float? i might let steves moped do this but i can try messing around on my own befoer i waste my time driving there and back and strapping up the beast

Re: Moped dies at high speed or after 30 seconds?

Possibilities:

Bad condensor

Bad coil

plugged up petcock

soft siezing the new kit

Take it back to Steves and have them check it out for you.

Re: Moped dies at high speed or after 30 seconds?

did it feel like all the air had been sucked out of the motor quickly, and like you hit the brakes really good... or did it ramble on down to a stop?

Re: Moped dies at high speed or after 30 seconds?

It just rambled to a stop, i installed a new pipe today, since steves put the WRONG pipe on my moped! tecno estoril looks and sounds pretty sweet. I found one knob on my carb, haven't touched it yet, maybe my idle is too low? can can i raise it? i have the 16mm deltoro

Re: Moped dies at high speed or after 30 seconds?

just a note...went to steves Moped this weekend, they fixed everything, took about 2 and a half hours total but its working great! wow its fast hits 50 mph now!!!

-the problem was two small wood chips stuck in the fuel dispensor/regulator at the bottom of the gas tank, dunno how they got in there, ask steves moped.

they were a great help though! the mechanics there are awesome, thanks again guys

Want to post in this forum? We'd love to have you join the discussion, but first:

Login or Create Account