Cam or pipe?

[exrider12]

What one would you do for a crf150r. hot cam stage one or pc t4 gp exhaust and why.

the cam helps the motor breathe better but with a stock exhaust its not working to its potential. Exhaust helps it breathe better and opens the door for future mods. I'm going to have to go with exhaust for now.

[quads14589]

get the exhaust first, get some more air flowing through first get yourself an air filter then break into the motor

[Hondamaster5505]

Those 150r's are so cool. They rev so damn quick.

Anyway, exhaust first. Later down the road, you can look into pistons/cams/etc.

[pro-rider46]

dirtbikes dont really come with mild cams, the stock cams arent that bad. I would go with the pipe probably. But it probably wont help much either. the exhaust arent that restricted on bikes that bad either. on my CRF is has a full system exhaust and most people recommend stock jetting, so i dont see why even put a aftermarket on. I put a stage 2 hotcam in my CRF also, and it didnt help a ton, pulled slightly harder. but didnt really help that much.

[exrider12]

Would i have to jet for the pipe?and do you know where i could get some touch up frame paint for it? O pro rider than what would you recommend for an upgrade?

[Ruby Soho]

Originally posted by Hondamaster5505
Those 150r's are so cool. They rev so damn quick.

Anyway, exhaust first. Later down the road, you can look into pistons/cams/etc.

anything will rev quick with the right weight on the crank..

the 150 is basically a smaller displacement crf250r.

btw, id go with an exhaust, then do your motor work.

[exrider12]

Alrite exhaust it is. What will the pipe do? Change the powerband or add power or both?

[416exfreak]

Pipe first, then cam.

When you put a pipe on it, be sure you get a good filter and rejet it.

[Hondamaster5505]

Originally posted by Ruby Soho
anything will rev quick with the right weight on the crank..

the 150 is basically a smaller displacement crf250r.

btw, id go with an exhaust, then do your motor work.

I know that, just the fact they're such a tiny motor that makes so much power amazes me. But they are literally like 2-strokes, all their engine components are so light.

[exrider12]

I dont think these dirt bikes are like quads, their exhaust and air filter are REALLY free flowing. I am thinking i wont need to rejet. I will find out when i run it.

[pro-rider46]

if was you, i would get some port work done. probably around 400 bucks, and help a good bit.

[exrider12]

Ya,umm.... my parents are kinda sketchy about this whole thing. the exhaust is pushing it so i dont think port work is in the cards,plus i dont have the budget.

[HmF300ex]

I know what thats like lol, I'm trying to get a crf250f right now, it's not working to well right now:huh

[HmF300ex]

but I would suggest getting a pipe first then later on cams, air filter, big bore, all the engine work.

[Kickstarts-suck]

Pipe 1st


Yes rejet!

[HmF300ex]

Ye Pipes-air filter, then jet it for that setup and that'll give allotta more power