Post by chromestarhustler on Jun 4, 2015 19:10:19 GMT -5
first of all thats not a gy6 engine. (its a lifan)
take the head off, measure the stroke, measure your bore, cylinder height, your case inlet, stud spacing, then order something larger.
if the stroke is something weird, which its probably not since the would require,
different rod length or
different piston pin offset, or
different cylinder height and chain length.
the chinese numbering system isnt 100 reliable or predictable, especially since that doesnt look like the short case buggy engine but instead the ultra short no belt direct gear and chain output engine based on the lifan 125 pitbike engine.
then you need something like this
tboltusa.com/store/tb-141cc-big-bore-kit-br-14mm-pin-p-855.html
but those engines come in 125 140 150 and several other sizes, so measure its bore, and stroke when you take the head off and go from there. they also have different piston pin diameters, 10mm and 14mm etc.
scooterparts4less has a bunch of parts but u need to know exactly what you need to order from them.
take the head off, measure the stroke, measure your bore, cylinder height, your case inlet, stud spacing, then order something larger.
if the stroke is something weird, which its probably not since the would require,
different rod length or
different piston pin offset, or
different cylinder height and chain length.
the chinese numbering system isnt 100 reliable or predictable, especially since that doesnt look like the short case buggy engine but instead the ultra short no belt direct gear and chain output engine based on the lifan 125 pitbike engine.
then you need something like this
tboltusa.com/store/tb-141cc-big-bore-kit-br-14mm-pin-p-855.html
but those engines come in 125 140 150 and several other sizes, so measure its bore, and stroke when you take the head off and go from there. they also have different piston pin diameters, 10mm and 14mm etc.
scooterparts4less has a bunch of parts but u need to know exactly what you need to order from them.