80cc big wheel

[fixin]

We just got a Yamaha bigwheel 80 for the kids.It runs great for about 20min.or so,then quits.It will lock the back wheel up in third gear on the road with my big b...(250 lbs.)like I was a little kid it will start right back up,run about 5min.and quit I haven't had time to mess with it yet,so I thought I'd ask around here if anyone knows about these little bikes(were to get man.and such)

 

[rwise]

Re: 80cc big wheel

chain drive? could the chain be loose enuf to rap around the front sprocket? a hard stop like that don't sound healthy for it.

 

[pjc]

Re: 80cc big wheel

Seems to me to be fuel issues. Sparks doubtful, but maybe. When it dies, pull plug right now and check. I will bet on fuel issues.<br /><br />Ebay will have a book for you.<br /><br />Another concern is carbon fouled spark plug. A small chunk of crap will bridge the plug and kill sparks.<br /><br />Anyhoo, keep us posted, these iboats folks are real handy!!!

 

[fixin]

Re: 80cc big wheel

it is chain drive,but no not loose,first thing I thought was it was it was out of fuel but it wasn't.fuel drips out of overflow tube a little.I,m not sure on it being a fuel prob.just on the way it locks up.the thing seems to run pretty hot too.I'm wondering about the two cycle injection,since it was full when I put gas in and it don't smoke much.don't know,I need to get a manuel. thanks for the replies.

 

[bubbakat]

Re: 80cc big wheel

If you have fuel dripping out of the over flow on the carb then it is flooding the cylinder and causing a hydro lock.

 

[fixin]

Re: 80cc big wheel

I thought flooding was possible too,but it acts more like it stops fireing.