some performance tip

[Big red 200es]

Hi, on my 125m the head have a porting and im thinking about putting a bigger carb now is 20mm.

I want to know with this long intake tube (number 22 in the picture). Do you lose some performance? If yes what to do with this?

And what will be a good carb size for it ?
(he will have a DG pipe, uni filter, porting, and a litle oversize)

[Big red 200es]

The picture dont work sorry I will try again.

[oOGoFastOo]

you shouldnt lose any performance with the long intake, it should add some, like a high rise performance intake on a car because it mixes the fuel and air better before intering the engine.

[Big red 200es]

Ok so sorry for the dumb question:wondering

But do you know what a good size of carb will be good?

[Erics350x]

you should be fine just changing your jetting in the stock carb

[timmyhart14]

It will be perfectly fine with a bit longer intake, and for the size of the carb, I would try a carb that is about 2-4mm larger than stock and see how that works, ive seen alot of smaller carbs for ATVs and dirtbikes that would most likely fit a 125 3 wheeler just fine on Ebay, take a look

[Big red 200es]

ok thanks for the answer

[tbirdscott]

Longer intake will give you more top end horse power, shorter intake will give you more bottom end torque. Torque = Fun


Scott