bicycle motor vibration

[MarkTur]

Check out ebay...they've got plenty it seems.

Upgrade Kit Motorized Bicycle Bike Motor Moped chopper - eBay (item 310055455048 end time Jun-05-08 07:52:30 PDT)

 

[Bikeguy Joe]

Yeah, I just looked into those....pretty good deal for 35 bucks total! Although me being me, I think I could buy the #41 chain at TSC and make a better version of the motor mount and use the 36T I bought from dax.

Maybe next time.

 

[motor_head]

lower the rpm

 

[old motorbike]

I geared mine so it stays under the VIBRATION zone.

 

[shadee573]

can anyone give me tips on lowering the vibrations on the old dog is there any motormounts that would work with my 70cc motor? thanks zoomcat

did not check if any 1 has posted this but thick rubber tube the size of the motor mount and cut it in half. thats what i did works great !!

 

[Bikeguy Joe]

So does mounting the engine in lead.

 

[shadee573]

So does mounting the engine in lead.

Why would you mount the motor with lead? you will always have to tighten the motor mounts lol sounds fun going to work or on a joy ride ha

 

[577-Jersey]

I had some pretty substantial vibration at higher rpm's,,I made a front mount out of an 1 1/2" muffler clamp and welded the BGF mounting bracket with three holes in it to the clamp.Had to drill the holes bigger,,but now she is perfectly straight and solid as a rock,,only vibrates a little at WOT,,I dont suggest riding WOT on these chinese motors for much longer than 30 seconds or so,,unless you have a smaller sprocket on back or pulling a grade.Bad motor mounting like drilling a hole in the frame=Vibration!

577

 

[ProDigit]

Guys, quick question,

What would you say, if I'd put a silicone glue layer on top of the bar, where the mounts will be mounted?

A layer of Silicone glue, let it dry, and mount the engine?

 

[maniac57]

Guys, quick question,

What would you say, if I'd put a silicone glue layer on top of the bar, where the mounts will be mounted?

A layer of Silicone glue, let it dry, and mount the engine?

ANYthing that has give in it like rubber or tape or ANYTHING soft will cause MORE vibration, not cure it.
Mount the engine SOLID and prevent failure.

 

[msrfan]

http://motorbicycling.com/showthread.php?t=24004