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Motorized Bicycle Trouble Shooting Use this area to post problems that may arise that you could use some help in figuring out what is wrong with their bicycle motor and what needs to be done to achieve top performance.

Anyone in Winnipeg MB want to make a few bucks


Discussion at Motorized Bicycle Engine Kit Forum in the Motorized Bicycle Trouble Shooting forum. Hey guys. As I told my wife I am not very mechanically inclined. If there is someone in town here ...
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Old 08-30-2008, 11:34 AM
Motorized Bicycle Apprentice
 
Join Date: Jul 2008
Posts: 6
Default Anyone in Winnipeg MB want to make a few bucks

Hey guys. As I told my wife I am not very mechanically inclined. If there is someone in town here that would like to make $100 and get this working for me let me know.
The engine I have is a 2 stroke. I have it all installed but the chain keeps falling off before it will even turn over. As hard as a try I just cannot get the sprocket centered properly so I'm getting quite abit of wobble from it so I'm sure thats why.
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Old 08-30-2008, 12:33 PM
Senior Motorized Bicycle Builder
 
Join Date: Aug 2008
Posts: 51
Default Re: Anyone in Winnipeg MB want to make a few bucks

Quote:
Originally Posted by Hemphire View Post
Hey guys. As I told my wife I am not very mechanically inclined. If there is someone in town here that would like to make $100 and get this working for me let me know.
The engine I have is a 2 stroke. I have it all installed but the chain keeps falling off before it will even turn over. As hard as a try I just cannot get the sprocket centered properly so I'm getting quite abit of wobble from it so I'm sure thats why.
First
Turn off Fuel Valve.

Flip bicycle Upside down ( resting on seat and handle bars ).
Take chain off of rear drive sprocket.
Spin rear wheel Look to see if the drive sprocket is wobbling at all.
If wobble is noticeable ,
Loosen all Rear drive sprocket bolts 2 and a half turns.
Next spin rear tire and with chalk in one hand slowly bring hand in to mark drive sprocket with chalk
( on the top right below the Chain teeth).
Your chalk will hit at the High spot on the drive sprocket first.
Next.
Look for the high spot on the sprocket and retighten the bolts.
NOTE
tighten the Bolts closer to the high spot more then the bolts further away from it.
Re spin the wheel and repeat until the wobble goes away.
If you try this many time with no success.
MAKE sure your Drive sprocket is mounted on the Rear tire hub correctly.
If you still find every thing is correct .

Take a Hammer and block of wood and wack the drive sprocket on the High spot chalk mark.

Sounds barbaric But works.
if you still have Problems Give Me a call.

I know you did no buy the kit from Us but i don't mind helping.

Cheers

Bob

BlueCollarBike

860-673-6457
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Old 08-30-2008, 12:40 PM
Motorized Bicycle Apprentice
 
Join Date: Jul 2008
Posts: 6
Default Re: Anyone in Winnipeg MB want to make a few bucks

Awesome, Thanks for the help Bob. I'll give it a try when I get home from work.
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Old 09-07-2008, 08:03 AM
Spunout's Avatar
Dealer
 
Join Date: Jul 2008
Location: coventry, RI
Posts: 150
Default Re: Anyone in Winnipeg MB want to make a few bucks

there are two ways a sprocket can be "out"...on it's axis (forward and backward) and laterally (side to side).
I've noticed more than a few sprockets are actually warped...meaning: if you took it off and layed it on a perfectly flat surface, you'll see a high side where the teeth arent touching the flat surface, but they do touch on the opposite side.
(these cheap-o things are not machined...they're STAMPED out.)
i use a coarse file, and file the sharp edges off the sides of the teeth. then i do just like Bob says, and make sure that my chain tensioner is where it needs to be.
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Last edited by Spunout : 09-07-2008 at 08:08 AM.
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