Jump to content
Sign in to follow this  

250f hp

Recommended Posts

Just wandering how much hp does the 250f's make stock? I have heard some one say they make about 40hp I don't think that is right? Just figured I would ask the tt experts.

Thanks for all replies:ride:

Share this post


Link to post
Share on other sites

I've heard 34, I've heard 36... You would probably get another hp depending on elevation and temps?

Share this post


Link to post
Share on other sites

34-38 conditions depending....and that's the more performance 250s, bikes like a ttr or xr would probably be like 28ish

Share this post


Link to post
Share on other sites

I didn't realize they put out them kind of numbers.Now am I wrong or is that not pretty close to the 400's? I have a YZ400F and I didn't even think it had 40hp after coming off the ole 86 cr500??I am confuzed now! :smirk:

Share this post


Link to post
Share on other sites

On the dyno local to me most stock 250F's peak around 32-33hp, but every dyno is different, that's why they are only used for before and after comparisons. Most dynos will show a stock 250F somewhere between 31-35hp though.

Share this post


Link to post
Share on other sites

im pretty sure its rear wheel hp and it makes around 34, assuming its not down on compression and running well

Share this post


Link to post
Share on other sites
34-38 conditions depending....and that's the more performance 250s, bikes like a ttr or xr would probably be like 28ish

The ttr's and xr's are more around low 20's hp.

Share this post


Link to post
Share on other sites
I didn't realize they put out them kind of numbers.Now am I wrong or is that not pretty close to the 400's? I have a YZ400F and I didn't even think it had 40hp after coming off the ole 86 cr500??I am confuzed now! :smirk:

A good running 450 should be putting out closer to 50. 45 - 48? That make any more sense? Now you're gettin in the neighborhood of that 250 2 stroke. Seeing a trend here? You're probably talking about 60-65hp with a 500 smoker. dayum!

Share this post


Link to post
Share on other sites
On the dyno local to me most stock 250F's peak around 32-33hp, but every dyno is different, that's why they are only used for before and after comparisons. Most dynos will show a stock 250F somewhere between 31-35hp though.

^^Agreed.

OP, to get a 250f to 40+ hp range it'll take mods like porting, cams, a BB kit and an exhaust system.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Reply with:

Sign in to follow this  

×