Bored out CR250 queries

[Jay B]

Hi there,
I am looking to purchase a mates 2007 CR250. It's been well looked after from new.
The motor has had a full rebuild and is now a 280cc.

Is there anything I should be aware of in regards to other works that should be done - i.e carburator upgrade? and looking to further down the track with this having been done?
I guess the bike will have a gained more power.

Cheers
Jay

[Boo]

Depends if its had any port work done, I would ride it at least before buying. Probably a little more torque

[Akzle]

yeah. nah. it's fucked.
i'll give him 5 buck and a bag of chips for it.

(get a down-draught supercharger for it )
280 single two smokka.
bangin'.

[scott411]

it depends on how the big bore was done, if it has been sleeved then i would steer clear of it, if it has been bored and replated then they can be ok,

the 280 2 strokes i have seen have gone well but needed to be rejetted to suit, they get a bit of torque, and loose over rev,

[Jay B]

its a 4 T; will find out about being sleeved or not.
Am giving it a burn at the Epic event this weekend
Cheers

[scott411]

its a 4 T; will find out about being sleeved or not.
Am giving it a burn at the Epic event this weekend
Cheers

if its a 4t then it is more likely to be a athena kit which are pretty good, the jetting was not to far off on those from memory,

[Jay B]

oh my goodness what a mission to start this bike hot.
this put me off kick start yesterday.

[hayd3n]

oh my goodness what a mission to start this bike hot.
this put me off kick start yesterday.

find tdc or find a hilll