Quote:
Originally Posted by Mack  Basically Lifan was producing two main motors.
The first had a stroke of 54mm and bore of 54mm which makes this motor 124cc. Plenty still in circulation. They are basically very similar spec motors to the Ducar.
The second motor which is the more sought after engine, has a stroke of 55.5mm and bore of 52.4mm and was only a 120cc engine.
Now Lifan has discontinued the first motor but released these new 138's. They are just the second motor above with the 55.5 mm stroke, but fitted with the 54mm piston from the first mentioned engine. They have 138 stamped on the barrel, but are only 127cc!
Now I have heard one person claim that they bought a Lifan with a 56mm bore which would give you 137cc, but this can only have been done by another chinese company either copying the Lifan motor or reboring Lifan cylinders to 56mm ex-factory. I don't know if he really did have a 56mm Lifan motor though.
So, you'll have to email the seller of that kit to find out. I'm sure someone on here has bought one by now so maybe we'll find out that way. |
yep mine had a 56mm piston but is was fitted by the seller, but i have since ditched the 56mm low comp piston( steel barrel) and opted for a new barrel (alloy barrel)and a 55.5 high comp piston. You are correct but Lifan now have a 140cc which is 55x59 it will be here very soon. It uses the 120 monster bottom end ( clutch on the main shaft and all up tranny). I will let you know how it goes