Engine Mod help

[big red]

I have recently bough a 125cc china bike. I want to find out some simple mods that will give me some more power. Can someone please help me?

 

[KTMKID]

www.50mods.com

 

[tubes380]

port match the carby manifold minor gain
jet and change needle height to optimum working level minor gain
inner rotor pretty good gain
hc comp piston good gain
bigger bore good gain
change the sprocket sizes alright gain

thats all the simple ones i know of hope it helps

 

[mxmad]

just simple stuff like a good aircleaner and get ur jettin right will help, if u want big gains then go internal and get pistons n stuff like tubes said

 

[PocketHead]

sticky-tape rockets to the back

 

[old DT]

That's just crazy. Use duct tape.

 

[Divy]

hey tubes this probably sounds like a dumb question but how do you port match the carby manifold??

 

[CHINGArider]

Theres some good stuff on here
http://www.50mods.com/

 

[disturbed]

is a breather pipe worth putting in ? does it make much difference?

 

[tubes380]

with the port matching all you wanna do is make the holes the same diameter. so what i did was to gett the gasket and use it like a template then just take out any major lumps of metal, you wanna leave the inside still rought though so the petrol and air can mix together.

with the breather tube ive heard mixed feelings about them, some say they are great other say they are a waste of money