should i rebuild the XR ?

[rookie517]

this is a 1998 model XR400

i bought used, and now for full motard street riding
i change the oil every month, and oil filter every 2 month

i don't know if previous owner have done any topend overhaul

should i do it?? :?:

or maybe, take the opportunity, to do a 440 ? :D

what parts do i need to order?
parts like piston, rings, cam chain, cam chain tensioner, valves, valves spring, valve seat, rockers ??

:shock:

[Wobbly]

XR's go forever, so I wouldn't worry about a top end unless its clanging rather loudly (like my old XL600 did :roll: ). But, that said, never let that get in the way of a good excuse for a big bore :D

[jakestein]

GO FOR IT :D
My 440 kit was great heaps of grunt about the same bottom end power to my wr450 . I only had a standard pipe so a pipe known for top end power and your gonna have a sweet motor.

A freind done all the motor work and got the parts at trade price it was around a grand inluding some minor labour ( Bore & alchahol for payment) thats from memory I was 15-16 when I had it lol. Will check for you.

Enough grunt to fry the clucth but it was not to flash anyway would of went forever with a standard motor tho :twisted: LOTS OF GRUNT :!:

[rookie517]

A freind done all the motor work and got the parts at trade price it was around a grand inluding some minor labour ( Bore & alchahol for payment) thats from memory I was 15-16 when I had it lol. Will check for you.



thanks!! :D

[Wobbly]

... ( Bore & alchahol for payment) ...
You paid him with a pig? :shock:

Yeah, fuggit rook, stick a bigger hole in it!! :D

[rookie517]

:lol:

[jakestein]

Nah, Bore as in bigger hole you should look into it :roll: it was the only labour cost around the $80-$100 mark.
I have paid people with food before no joke lobster and prawns around xmas are great bartering items. But my new job is a bit tight.

Ok from memory we think parts were $650-$750 that would of been clutch aswell tho.

You could buy a good pipe and get nowhere the performance gain for simular money.

[rookie517]

cool jakestein, that's fast reply! :D

i maybe looking at only installing the sleeve after boring job.

the rest, i still can manage on my own, hopefully. :P

[rookie517]

what is the turn around time??

[jakestein]

A week maybe have it booked in for the bore before you pull it apart?
The parts will be piss easy to get.

[rookie517]

cool, 1 week sounds ok to me

as i need the bike for daily transport.

anywhere i can order the sleeve and oversize piston from OZ?

[Wobbly]

Ballards used to do heaps of XR stuff ( http://www.ballards.cc ) ... they do a lot of yamaha gear now but probably still carry the XR gear as well. Used to be able to get replacement 600 slieves etc from them...

[rookie517]

thanks Neil ;)

[rookie517]

http://www.ballards.cc/index.php?module=Website&action=Text&content=1107841219428-4936&parentContent=1107839693901-9629

i only got this, but don't see any sleeve, oversize piston and gasket kit...

jakestein, how much would the boring/ installing the sleeve be?

[jakestein]

Not sure mate I would ring ballards say what you want and I bet they will have a 'Kit' of some sorts.

I think the standard sleeve was bored out will check for ya.

This was done at a time when I was young had no bills and every cent I earnt went to bikes..... Hang on its still the same :D ( vortex ignition 8) )

[rookie517]

thanks mate. :D