250EX Performance FAQ thread

[coolkid91]

no you wont notice any more bump steer than normal.i have 1.5in spacers in the front and i love them,it realy dosent matter its not like were freakin pros lol.get the spacers you love them

[ryanh250ex]

Originally posted by coolkid91
no you wont notice any more bump steer than normal.i have 1.5in spacers in the front and i love them,it realy dosent matter its not like were freakin pros lol.get the spacers you love them

You're also putting additional stress on your front end parts. bearings, bushings, joints etc etc.

[coolkid91]

ha who cares lol ,its a honda

[ryanh250ex]

Originally posted by coolkid91
ha who cares lol ,its a honda

the ignorance of some of you never fails to amaze me .

[Rider-trx_250ex]

Originally posted by ryanh250ex


If anything I'll ask the mods to delete all the unnecessary posts.

YES< have that done, I had to read through about 2 pages of useless garble just to find what I'm reading for.....


AND does anyone know where I can buy a WEB camshaft......i have searched for ever!

[ryanh250ex]

Originally posted by Rider-trx_250ex
YES< have that done, I had to read through about 2 pages of useless garble just to find what I'm reading for.....


AND does anyone know where I can buy a WEB camshaft......i have searched for ever!

Report the posts to a mod or admin, i sent them a msg about it to no avail.

As to your tech question, any shop that carries WEB camshafts should be able to order the 250ex grind. I doubt most places carry it in stock, seeing as they use stock cores.

[Honda10]

how fast will my 250ex go with an hmf full system pipe, k & n airfilter, and white brothers jeting.

[kingdingaling]

My brother and I are buying a 250ex just to mess around with so i was doing some research on them and I have yet to see one of these quads with a big bore kit and longer intake rocker arm from Powroll. I was wondering how a 250ex with this, plus bolt-ons, would fair against bigger quads such as the 300ex. And I would also like to know if the web cam would still be a descent upgrade. The cam has more lift and duration on the intake side than the exhaust side. If this was run with the longer intake rocker, would this cause a problem? It seems to me like the engine would be bringing in a lot of air but would be too weak on the exhaust side to get it all out! Any info would be appreciated!

[BlasterEaten250]

Originally posted by Honda10
how fast will my 250ex go with an hmf full system pipe, k & n airfilter, and white brothers jeting.

50 mph give or take about a mile an hour.

[BlasterEaten250]

Originally posted by kingdingaling
My brother and I are buying a 250ex just to mess around with so i was doing some research on them and I have yet to see one of these quads with a big bore kit and longer intake rocker arm from Powroll. I was wondering how a 250ex with this, plus bolt-ons, would fair against bigger quads such as the 300ex. And I would also like to know if the web cam would still be a descent upgrade. The cam has more lift and duration on the intake side than the exhaust side. If this was run with the longer intake rocker, would this cause a problem? It seems to me like the engine would be bringing in a lot of air but would be too weak on the exhaust side to get it all out! Any info would be appreciated!

A bored out 250 with a higher compression piston should be right around or maybe a little faster than the 300ex until the 250 hits its top speed. I remember a long time ago someone installed a web cam and said it gave a pretty good increase. That's about all I know since I haven't really looked in it very much. I would consider calling powroll racing if you are really interested though, they make a few engine mods for the 250.