ChinaRiders Forums - View Single Post

TurboT · 08-01-2009, 07:49 PM

I have never looked into any 'kits' for the motors but I would expect any 'big bore' kit would require block machining to open the cylinder. In my humble experience, finding a machine shop with the tooling to work on small sizes like that is difficult. We used to 'hand hone' harley cylinders, however these would start with a fairly large diameter hole to begin with. (and by hand hone I mean using the rod resizing machine to open the hole with specialized stones, not one of those flimsy things you hook onto the end of a drill)

I only knew of one shop in the lower mainland of BC that had the capability to do this type of work, however granted it was not our metric and didn't care to look into it. This shop could pretty much set their rates and you're more likely better off to buy a new motor, or sell and upgrade your atv.

Perhaps the kit comes with the piston, rings and cylinder pre punched out.

Stroker kits would be different, as I would expect they would come with the new crankshaft and rod length to fit the length of your cylinder. I would mention Yozalo that working on internals on engines may require tools you may not have, and that are difficult to come by. Even when we had our shop, working on many different kinds of engines, we weren't 'equipped' to deal with motorcyle engine rebuilding tools. This is with a shop equipped with probably $500,000 worth of tools and machinery.

I say this because in my opinion you'd be better to buy a whole engine that will fit, or sell your 110cc and buy a 200cc or larger whole quad. You do have a unit that is really designed to fit 7-12 year olds, so increasing performance may be challeging...and if you did manage to make a new motor fit, your brakes and suspension might not be sufficient to handle the increased speed and acceleration, causing you to hurt yourself.

08-01-2009, 07:49 PM	#4
TurboT Join Date: Sep 2008 Location: Surrey, B.C., Canada Posts: 2,185	I have never looked into any 'kits' for the motors but I would expect any 'big bore' kit would require block machining to open the cylinder. In my humble experience, finding a machine shop with the tooling to work on small sizes like that is difficult. We used to 'hand hone' harley cylinders, however these would start with a fairly large diameter hole to begin with. (and by hand hone I mean using the rod resizing machine to open the hole with specialized stones, not one of those flimsy things you hook onto the end of a drill) I only knew of one shop in the lower mainland of BC that had the capability to do this type of work, however granted it was not our metric and didn't care to look into it. This shop could pretty much set their rates and you're more likely better off to buy a new motor, or sell and upgrade your atv. Perhaps the kit comes with the piston, rings and cylinder pre punched out. Stroker kits would be different, as I would expect they would come with the new crankshaft and rod length to fit the length of your cylinder. I would mention Yozalo that working on internals on engines may require tools you may not have, and that are difficult to come by. Even when we had our shop, working on many different kinds of engines, we weren't 'equipped' to deal with motorcyle engine rebuilding tools. This is with a shop equipped with probably $500,000 worth of tools and machinery. I say this because in my opinion you'd be better to buy a whole engine that will fit, or sell your 110cc and buy a 200cc or larger whole quad. You do have a unit that is really designed to fit 7-12 year olds, so increasing performance may be challeging...and if you did manage to make a new motor fit, your brakes and suspension might not be sufficient to handle the increased speed and acceleration, causing you to hurt yourself.
	0