Planet Minis

mexicanyella · 10-26-2009, 07:40 AM

As found on some of the little Chinese quads, etc.?

Do they just have a regular semi-auto-style clutch running in oil, but only one gear pair and no shift shaft? Or is there some other apparatus in there? Do they eat clutches and fill the oil with clutch junk faster? Riding my semiauto Z around in third all the time seems kind of hard on it...

firepower354 · 10-26-2009, 09:07 AM

Short gearing, and lighter riders, let 'em live a while longer.

schofell84 · 10-26-2009, 09:58 AM

dont they have cvt style moped clutches?

LasVegasStreetterror · 10-26-2009, 07:13 PM

I have one that only has the main shafts and one set of gears, it uses a klx style crank mounted 3 arm clutch. probably a 1:1 ratio, I will take apart one day and see what fun I can have..

mexicanyella · 10-26-2009, 07:38 PM

Now that I think about it, early Honda NC50 Express no-peds had a one-speed drive off an oil-bath centrifugal clutch. No fancy technology, just a real heavy-duty centrifugal clutch in an oil-tight housing with some motor oil in it. They held up, from what I could see. I rode one around some in college, and have a disassembled one out in the garage where I trip over it all the time.

Makes you wonder about something like MakeshiftPatriot's long-ass drag-swingarmed Z, with one of Firepower's crazy-ass motors, in a one-speed setup. Kind of a scale-model BB Chevy/Powerglide drag situation. Could it work? With a clutch tweaked to let the engine "stall" at its torque peak, a big enough oil cooler and frequent teardowns? Would it be any quicker than trying to shift?

mexicanyella · 10-28-2009, 09:47 AM

Now check out what I just saw on ebay, listed as a clutch for automatic 70/90/110 motors:

firepower354 · 10-28-2009, 10:12 AM

Hmmmm. Wonder what it weighs?

mexicanyella · 10-28-2009, 01:20 PM

And why that one looks kind of like a minibike/gokart clutch, but with the splined hub to fit a Honda OHC engine, whereas the one on the other thread a little above this one looks like a standard semi-auto clutch...? What sort of tomfoolery is going on here?

10-26-2009, 07:40 AM	#1 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 987	Anyone ever seen inside one of those Chinese full-auto clone motors? As found on some of the little Chinese quads, etc.? Do they just have a regular semi-auto-style clutch running in oil, but only one gear pair and no shift shaft? Or is there some other apparatus in there? Do they eat clutches and fill the oil with clutch junk faster? Riding my semiauto Z around in third all the time seems kind of hard on it...

10-26-2009, 09:07 AM	#2 (permalink)
firepower354 Advertiser Join Date: Oct 2006 Location: Flint MI Posts: 11,005 My Mood:	Re: Anyone ever seen inside one of those Chinese full-auto clone motors? Short gearing, and lighter riders, let 'em live a while longer. __________________ If it has my name on it I did it;) FirepowerMinis.com Custom FPM parts and engines. Parts and service for all makes. Honda Trail Bikes parts and accessories. Pitster/Piranha/Thumpstar bikes, parts, engines and accessories.

10-26-2009, 09:58 AM	#3 (permalink)
schofell84 2nd Gear Member Join Date: Feb 2007 Location: Ogdensburg Posts: 278	Re: Anyone ever seen inside one of those Chinese full-auto clone motors? dont they have cvt style moped clutches?

10-26-2009, 07:13 PM	#4 (permalink)
LasVegasStreetterror 3rd Gear Member Join Date: Nov 2007 Location: Las Vegas, Nevada Posts: 1,092 My Mood:	Re: Anyone ever seen inside one of those Chinese full-auto clone motors? I have one that only has the main shafts and one set of gears, it uses a klx style crank mounted 3 arm clutch. probably a 1:1 ratio, I will take apart one day and see what fun I can have..

10-26-2009, 07:38 PM	#5 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 987	Re: Anyone ever seen inside one of those Chinese full-auto clone motors? Now that I think about it, early Honda NC50 Express no-peds had a one-speed drive off an oil-bath centrifugal clutch. No fancy technology, just a real heavy-duty centrifugal clutch in an oil-tight housing with some motor oil in it. They held up, from what I could see. I rode one around some in college, and have a disassembled one out in the garage where I trip over it all the time. Makes you wonder about something like MakeshiftPatriot's long-ass drag-swingarmed Z, with one of Firepower's crazy-ass motors, in a one-speed setup. Kind of a scale-model BB Chevy/Powerglide drag situation. Could it work? With a clutch tweaked to let the engine "stall" at its torque peak, a big enough oil cooler and frequent teardowns? Would it be any quicker than trying to shift?

10-28-2009, 09:47 AM	#6 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 987	Re: Anyone ever seen inside one of those Chinese full-auto clone motors? Now check out what I just saw on ebay, listed as a clutch for automatic 70/90/110 motors: Attached Thumbnails

10-28-2009, 10:12 AM	#7 (permalink)
firepower354 Advertiser Join Date: Oct 2006 Location: Flint MI Posts: 11,005 My Mood:	Re: Anyone ever seen inside one of those Chinese full-auto clone motors? Hmmmm. Wonder what it weighs? __________________ If it has my name on it I did it;) FirepowerMinis.com Custom FPM parts and engines. Parts and service for all makes. Honda Trail Bikes parts and accessories. Pitster/Piranha/Thumpstar bikes, parts, engines and accessories.

10-28-2009, 01:20 PM	#8 (permalink)
mexicanyella El rey de los puntos Join Date: Aug 2008 Location: Troy, MO Posts: 987	Re: Anyone ever seen inside one of those Chinese full-auto clone motors? And why that one looks kind of like a minibike/gokart clutch, but with the splined hub to fit a Honda OHC engine, whereas the one on the other thread a little above this one looks like a standard semi-auto clutch...? What sort of tomfoolery is going on here?

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