yfz 450 need more power help

[dogmanjayx]

i need more power but dont want to spend to much money i have the full exhaust system fmf with the power bomb header pips , kn air filter with air box lid on also whent up to a 15 on front sprocket what can i do to get more power speed etc please help

[Freestylemxr]

Do you want higher top speed or more torque? And where do you usually ride? MX or XC?

Doing the cam mod will give you a little bit, also a rev box will give you an extra 1000 RPMs up top

[dogmanjayx]

i want more top but i dont want to take to much away from bottom

[Freestylemxr]

The cam mod and the rev box will do that for you, you could always go to a higher compression piston, or get some porting and polishing done, but if you wanna stay out of ur engine for the most part do the cam mod, get a rev box, and if you want more snappy power and you do mx then go with some 18 inch tires, buut if you want high speeds then go with a larger tires for some xc style riding

[ketchup]

Don't bother with a rev. box. Your bike isn't even making any more power in that RPM range. Scrap the airbox and get an ESR intake, cams or cam mod and get your jetting dead on.

[Freestylemxr]

rev box's can make a big difference, gives you a lot of top end! a lot more on top of every gear

[ketchup]

You have no idea what you're talking about. Look at a dyno. chart of a YFZ. Where is the power made at in the RPM range. I assure you it's not a 11.5k RPM's.