TT600R 2003 3AJ topend rebuild and more

[sanderd]

Hi all,

you might noticed my post on rear rim replacement. I'm in Medellin now and plan on doing major service, besides the rim.

This will include:
-Compression check (lately not a lot of resistence when kicking).
-Top end rebuild (200cc oil every 400km is a bit too much)
-preventive change of clutchplates (now 50000 on the clock, of which 45000 with luggage). Got clutchdrag, cannot find neutral easy, doesn't slip yet but it doesn't seam to release properly, feels like plates stick. which is not a nice experience when putting in gear with cold engine on choke)
-inspection/grease rearlink barrings
-check steering head baering, but they seem fine.
-the usual replacement of wear and tear parts. (pads, oil, filter, valve check)
-new chain+sprocket set

Colombia just seems the right place for it ;-)

Questions:

-What are typical parts to e replaced with a topend rebuild? Just cilinder bore (do i really need that??), piston set (+0.5mm oversize when bored), valve stem seals? In the proces i will check valve seats, to see those are ok.

-Clutch replacement. Based on crosscheck partnummers TT is same as same enginemodel XT. but i'd like to have 1 hand confirmation. What is the enginetype, 3AJ?

-Can i do the top end with engine in frame?

-Are there any recommended other check/replacements while i'm at it?
(distribution chain?)


any thoughts, questions and experience is welcome

Sanderd