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LT250R Quadracer => LT250R - Engine => Topic started by: Boneshaker8 on March 07, 2023, 08:58:12 am

Title: 1985 LT250R Quadracer top end rebuild questions
Post by: Boneshaker8 on March 07, 2023, 08:58:12 am

Hey everyone!  New to the group and have questions concerning the possible top end rebuild of my 1985 LT250R. It hasn't been running for a long time because when I would try to start it, I'd have to kick it literally 100 times to get it to start!  I never pulled a compression check or have torn it down to check bore size on it so I can't say that's the main problem or possibly  the carb is junk.  Anyway,  to rebuild it,  does the jug need to be bored to a larger size and new pistons and rings?  Is it typical to do all that or simply re-ring it?  If boring is necessary,  who does that?  If anybody has knowledge or experience in this, please advise!  I'm kinda wanting to get it running again so I can scare the **** out of myself all over again!  Thanks!!

Title: Re: 1985 LT250R Quadracer top end rebuild questions
Post by: ThrustWasher81 on March 08, 2023, 09:10:52 pm

Won't know if it needs bored until a competent person checks the bore throughout well. Will need a bore gauge and calipers.

First step is a proper compression test with a good gauge.