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super_man37366
06-19-2002, 10:45 AM
Hey everyone they finally got the big-bore kit out for the 250ex here is the web address it just dont tell what it bores it to.. so can neone help here they address it tells everything else size and stuff please click this address and open it up and tell me what u think would it help http://www.powroll.com/honda_trx250ex.htm

please please please respond... later
crashinmatt
06-19-2002, 11:05 AM
i couldnt get the link to work
flaneledholes
06-19-2002, 12:13 PM
cool its about time someone made a big-bore kit for that little engine. Now I bet alot of people will be buying the 250 and I wouldnt buy the kit from anyone else but powroll cuz they had it first.
TRX250EXER
06-19-2002, 01:40 PM
im looking at it now and it says it 2mm oversized. 10.8:1 compression. 70.5mm forged piston. And a high ratio intake rocker. and it $330. Sounds cool. Wish I had 330 dollars!
06-19-2002, 01:45 PM
it makes it a 243cc motor
super_man37366
06-19-2002, 04:08 PM
oh my bad here is the link again.
http://www.powroll.com/honda_trx250ex.htm

how did you know it gain that many cc? later
06-19-2002, 04:14 PM
does anyone know how many more horses it will add if you do this. this sounds like it would be a mean little 250ex if someone did this
NJ300ex
06-19-2002, 04:21 PM
FST has had a kit out for several months now incase you guys didn't know that.
06-19-2002, 04:27 PM
whats the address to FST??
TRX250EXER
06-19-2002, 11:48 PM
I emailed FST awhile back. They emailed me back saying all the had was a 11:1 compression piston stock bore. Powroll is designed a better cam and big bore piston.
06-20-2002, 11:16 AM
I got it of Bluetraxx......I know i know
Here it is
http://www.bluetraxx.com/engine_displacement.htm
ridered300
06-20-2002, 11:22 AM
just save your money and buy a 300ex or 400ex. Unless u just really like that auto-clutch action. Just my opinion
2001250ex
06-20-2002, 11:35 AM
well since its blowed no i should just go ahead and get it .i was jsut goin to boar it and go.....cause im goin to get a 400 soon i hope..thats if i get this other job
TRX250EXER
06-21-2002, 01:43 PM
You blew your 250ex already?? how'd you do that? do you have the extended warranty?
2001250ex
06-21-2002, 02:48 PM
no nottin im goin to either get the big bore kit or jsut make it stock agin
TRX250EXER
06-21-2002, 05:53 PM
for comparing prices to prices the kit is gonna be more but if you go stock you are gonna have to get resleeved and still buy the piston and rings and gaskets. for a little more money i'd just go ahead and get the kit. If you have the money DO IT!! then let us all know how you like it! LOL
Dusty
06-22-2002, 05:05 AM
I recieved an email from Pam, at Powroll. She said the kit increased hp by 25% on the Dyno. She also said you could get an additional 8% with an aftermarket silencer. She didn't specify which silencer, but I know they sell Supertrapp with alot of there kits.
I bought one of these quads not long ago for my niece. She is fairly new to riding, and I liked the idea of shaft drive, and auto clutch, (and of course cost). She fits the quad like a glove, but is already pushing the limits of its performance. I think that an increase of close to 35% in horsepower for around $500 isn't that bad of deal.
I haven't talked to Graydon, but I know they have been working a kit, with similar gains.

Brian