Purchasing a new bike pretty soon with a 138cc oil cooled lifan, what engine mods would you recommend? I don't mind spending some dough
One mod i want to do is a Inner Rotor kit, maybe a cam (what one ? and where from), what other work would you recommend ?
I just want this bike to haul ass and keep up with the three 80cc 2 strokes i ride with if possible. I would buy an 80cc 2 stroke myself but i prefer the power delivery of a 4 stroke and it suits the type of riding we do perfectly, i tend to keep up with the 2 strokes on my Orion through all the corners (the guys i ride with are a bit soft) and up the mountains but they smoke me down the straights.
Porting
Increase compression (high compression piston)
Inner rotor
Cam
Clean up the muffler a little (bit restrictive if your not worried about noise)
And finally jet your bike to suit the mods you do and the fuel you use (higher octane if you going high compression)
Thats a list of what your aiming to do with any engine for max performance.
You may wish to focus on handling aswell, put some better fork oil in and maybe spring spacers if your a big bloke.
with these mods your bike will flog a factory 80cc 2 strk any day.
Ok, i am pretty technically minded and know nearly everything about pit bikes but i know almost nothing about the inside workings of a 4 stroke motor. I have learnt everything i know from owning an Orion and having to troubleshoot so many problems. Would i be able to change cam, do porting and install a higher compression piston myself with some help from the forum?
Also what sort of cost could i expect to do these mods noidea? And what cam and where could i purchase it?
The bike i am purchasing has all Billet parts, billet hubs, CNC wheels, and fast ace suspension front and rear. So i'm aiming for the bike to go as good as it looks if not better =) And to smoke those damn whippersnippers
if you want to keep up with the jap 2 strokers buy one.it will work out much cheaper in the end,and handle alot better.a half decent rider on say a yz80 will always smoke a mini
oh, btw 138cc pitro/dhz out of the box would flog kx,yz,rm,cr 80 out of the box... if u know what i mean
Bike i'm buying much better quality than DHZ and Pitpro, built in same factory but its the top of the range bike they make. Wholesale price is $950USD whereas those DHZ and Pitpro are about $280USD.
As for a piston, what one should i buy and where from ?
Linear Mode
