Checking in from New York!

nitroscope8 · #1 (**permalink**) 05-26-2008, 02:34 PM

I'm Chris front Long Island. I built my first motorized bike 3 years ago for my brother. We shoehorned a 48cc engine int he frame of my brothers 19" mountain bike....without modification. About a year later I decided I wanted one of my owne and installed a 66cc 2 stroke (aka 80cc) onto a junk bike. Power wise they seem simlar, though the 66cc handles hills a touch better and goes a bit faster.

Both have seen about 250-300 miles of road time. The smaller one has a catalytic converter on it and it seems to do a pretty good job. I run a 30:1 oil mix in both without issue. Parts stay well lubricated and power stays up. Gone through 3 CDI units between both engines and they have the original spark plugs. I cut the exhaust baffle in mine half way. Little louder, power seems to have improved. Lastly, i'm using a 50tooth rear sproket on both bikes. The 48cc one gets better mileage than mine...oh well.

How long do these engines last anyway?

**fairracing31** · #2 (**permalink**) 05-26-2008, 03:06 PM

Welcome to the forum chris glad you could join us

Those are some nice ride's

I know some guy's that have gotten over 7,000 miles on there motor.

**CRUISER** · #3 (**permalink**) 05-26-2008, 04:14 PM

welcome to the forum chris and those are some fine looking motorized bicycles. i used to live in westbury and comuted to work on my pedal bicycle. more stop lights then i could count thier lol. glad to have you with us

nitroscope8 · #4 (**permalink**) 05-26-2008, 06:15 PM

Thanks for the warm welcome. I've already put rubber in the fins of the cylinder head/top end the vibration has been reduced by a lot...neat little trick I learned today. so much info on this site!

**Ilikeabikea** · #5 (**permalink**) 05-26-2008, 06:37 PM

Welcome to the forum. Lots of motorized bicycle enthusiasts here. Those are nice looking bikes. Thanks for sharing the pics. Glad you joined us................