Lifan Head Upgrade 138cc

[cranga]

Howdy all, Ive purchached a black Lifan motor and am curious what else i would need to fit this lifan replacement cylender kit. Im fairly new to this type of engine modding, so help would be appreciated!

 

[Linc]

Gaskets????.......

 

[cranga]

Yup thats one thing im going to have to get

 

[roost]

just make sure the stroke is the same because if 138 barrel is longer than the 125 there will not be much compression and if its smaller BANG RATTLE RATTLE

 

[crazzy #1]

i seen that head.... up close, exactly that one... u can change headz

thatz the same head as the one on my bike

 

[roost]

i seen that head.... up close, exactly that one... u can change headz

thatz the same head as the one on my bike

not being a smart ass but that is a barrel, it houses the piston, the head sits on that it houses the valves and cam, the piston that comes with it will give you 11.0:1 compression and i think that the standard Lifan 125 has 9.0:1

 

[FLICK]

A friend asked DHZ for the bore and stroke of the lifan 138cc engine, they said it was 55mm x 56mm

 

[Mack]

That should be a drop on fit to the 125 lifan.

 

[cranga]

CHeers guys! just snapped one up on ebay. Recomend i port the head while its out?

 

[roost]

yep just beat me , i only wanted it as a spare

 

[Mack]

I would recommend you build that thing into a dirt churning monster. Ya better port that thing.

 

[THUMPY125]

i was looking at the same one do you reckon it will fit my 125cc Loncin motor any help plz

 

[PITBIKE_MULLISHA]

why would u waste ur time as the 140cc are mint for the price.

 

[Power Man]

i know for a fact that 110cc will not work with this 138cc barrel kit. lol ive tried and the stroke of a 110cc will not fully compress on the comression stroke, ive heard that the 125cc stroke is fine ?