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Discussion Starter · #1 ·
All these motors seem to be the same thing.

anyone know of anything different about these motors besides

the ignition/clutch cover labels?
 

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if you look on our site we list our motor by importer / manufacturer

so

we have ogm / yx 140

and (not shown due to out of stock ) GPX / yx 140

so

both are yx140 motors , same

57mm x 56mm alumimum cylinder 78mm tall



the lifan 140 however is different

longer 59mm stroke and taller cast iron 81mm cylinder

also must run oil cooler or jumper line from bottom feed
 

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Discussion Starter · #4 ·
Well when you buy the motor it is indeed listed as what it is

It's either a OGM / LIFAN 140, or an OGM / YX 140.

i have the YX. CRKID, would you happen to know what bore kits

and any other products that are available for this motor?

Also, i've seen race cams for this motor, but they seem

to have less lift than the cam i pulled from my motor.
 

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the yx 140 will really wake up with the tbwo300

see the "reviews" section in my store



the yx140 takes the new tb160cc kit and the new tb 30mm/23.5mm heads

this set up is stupid fast

tb test rider tyson clark was rippin one all summer back east here
 

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whighty450rider said:
not to jack the thread or anything, but why does ogm use both lifan 140 and yx 140? it would save alot of people hassle if they just used 1.


the summer befor last ogm was one of the first to bring lifan 140cc

then went to yx140cc later when yx140 came out

its a simple progression
 

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If there is no mechanical or quality difference between a GPX yx140 and a OMG yx140, then why is there a price difference between them?
 
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