KXF250 major servicing?

[Mike77]

Hi folks,

First post in KB, so thought I'ld ask for some advice........... :)

Just got a 2005 KXF250, and was wanting to know your opinion on when I should get the bike taken apart for a Top End (As I'm lead to believe this is the thing to do with these little motors).
Was having a chat at MR Motorcycles the other day whilst getting some more oil, and we talked about $1300 for a top end rebuild (Unsure what exately that entails) so I don't want to go down that route straight away after buying the bike if I can help it. (Actually thought what have I got into after that conversation)
Only had road bikes in the past, and been away from them for a few years.

Or what would be your trigger to get major work done.

Bike: 2005 KXF250
Hours: 111
History:
1st Owner 0-70 odd hours - apparently did a "top end rebuild" word of mouth.
2nd Owner 70 odd - 108 hours - Trusted work mate, pedantic with oil / filter changes, came with spare air / oil filters etc etc. New Tyres, brakes etc. No major work done.
3rd Owner - Me!

Bike usage: Trail type stuff only, not used for racing. (1st owner word of mouth only)
Bike condition: Fairly mint, and original - no aftermarket stuff at all.
Starts fairly easily cold or hot

Thanks for any replies!

Tried searching on the forum, but couldn't find really what I was after, so if there is a thread on here I missed, please point it out.

[Mike77]

If there are any other servicing hints, I'm all ears!

[Katman]

Keep a fairly regular check on the valve clearances. If you start finding the gaps closing up get the top end rebuild done sooner rather than later and factor in replacement valves into the cost.

[scott411]

ill be upfront and i am a ex owner of mr mc,

the 1300 will be everything, top end kit (piston rings etc) and valves, springs, cam chain etc, at over 100 hours that would be the recomendations, if you do not know what has been done for that motor it would make it known whats inside there,

do you know when the piston has been done last, or have any service history on it,

[Mike77]

Cheers Scott,

Wasn't too worries about the cost ....... well ok I was a little, just trying to figure out the best time to to spend the money.

So I guess, without a definate service history, the sooner the better, then at least ya know it's done.

After that, In the normal course of my useage, does getting it done around the 80 hour mark (All things going well) sound feasible?

[Mike77]

Cheers katman,

I don't measuring the gaps, but not keen on taking things apart to replace shims.

[scott411]

Cheers Scott,

Wasn't too worries about the cost ....... well ok I was a little, just trying to figure out the best time to to spend the money.

So I guess, without a definate service history, the sooner the better, then at least ya know it's done.

After that, In the normal course of my useage, does getting it done around the 80 hour mark (All things going well) sound feasible?

yep, although you would not do the valves at that time, just piston and valve springs,

as katman says, checking the valves is prob a wise thing to do, if everything is in spec then it might be worth the risk of letting it go, and it might give you an idea of what has been done

when KXF's pistons go normally, they usually crack and loose compression and wont start, its when they drop valves they do a heap of damage, (and its messy and not worth fixing on a 05)

might be worth taking the frame number into MR MC so they can do a search though their system to see if they have done any work on it in the past,

[Mike77]

Cheers

Thats just the advice I wanted, I heard they get hard to start, but didn't know why.

Now off to the garage with the feeler gauges ......

[SMOKEU]

Fuck, if that's the rebuild cost of a 4 stroke then might as well stick with a 2 stroke since the more sedate models don't need rebuilds all that often if they're run on good oil and looked after properly.