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Old 10-23-2013, 04:18 PM
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mapbike mapbike is offline
Motorized Bicycle Elite Member
Join Date: Mar 2010
Location: Central Texas
Posts: 5,379
Talking Re: what did you do to your motorized bicycle today?

Originally Posted by Danschutz View Post
Finished the Puch head install last night, had to grind down the 1/4 14mm long socket to fit in there. When I looked at the head studs the two at the rear of the motor are straight but positioned forward in the block so when you put the head on those rear studs are even harder to fit a socket over.

Performance, way increased! It was 35 degrees outside last night when we went for a 30 minute ride and in the flat straights my buddy Brian was just inching away from me, but he has a 4.5 hp arrow motor and is about 70 pounds heavier.

Basically my motor went from topping out at around 22 mph (remember Im at 5200 ft elevation) and last night I was gaining mph going uphill and as I went by a lamppost I could see I was at 22 mph and climbing. Now I really need an exhaust!!!!


Thanks, again Map!!!!!
You're welcome Dan, Glad you're enjoying the added performance and of course the Puch head looks pretty cool in my opinion also, a good free flowing exhaust will add even more gain, just be sure to check the spark plug after you add a free flowing exhaust, dont want to have a lean run condition, if you're already a bit rich it may turn out to be a good tune for you but sure want to be for sure and not lean that engine to much.

I dont always ride WOT, but when I do..I do my best to keep the rubber side down..Ride safely my friends!
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