KTM 200 EXC 2010

[murph the surfMember]

Does any body know the tollerance of the piston for this bike
Have got Tims bike pulled down and we are a little bit worried that the piston is’nt up to spec
Cheers
Murph

[GregMember]

Hi Murph, is it a new piston or the old one you are talking about?

TB

[murph the surfMember]

Original piston, TB

[GregMember]

Try here

Or

[GregMember]

Hasn’t it done enough hrs to have a new one fitted Murph? Can I ask why was it pulled down? Just wondering

TB

[murph the surfMember]

Wow, thanks TB
That was awesome
Exactly what we needed
We were measuring the piston top and bottom and through x, y axis
His piston at the skirt is 63.92 so it may be time for a newy

It has done over 7000kms so he probably should bite the bullet and buy a new one
He pulled it down for something to do and I think he could start it with his hand on the kick starter

Thanks Mate
Cheers
Murph

[AlexMember]

7000Km on the original 200 piston?? Time for a new one Murph haha!

[Damien SmithMember]

Has that had the rings done since then? Or all up 7000kms on same piston and rings?

[murph the surfMember]

All original, so new piston, rings, bearing and gudgeon going in this week
Cheers
Ya’ll
Murph

[Damien SmithMember]

Murph the surf wrote:

All original, so new piston, rings, bearing and gudgeon going in this week
Cheers
Ya’ll
Murph

That’s crazy as :woohoo: I think I might leave mine a little longer then

[murph the surfMember]

Help appreciated :blush:
A couple of questions for those with maintenance manuals
Why did Tims old piston have two rings and his new only one?
Torque settings for the head bolts?
I think we are going to put it back together this arvo
Cheers
Murph

[DeanMember]

Page 99 Has got all your engine torques Murph

http://ktmdirtquestions.com/wp-content/uploads/2011/09/2010-KTM-125200250300-xc-xc-w-exc-owners-manual.pdf

Twin ring is standard single ring probably an after market Single ring usually dont last as long as twin ring and probably not get 7000 kms out of it :laugh: (if it were mine I would change it for the twin ring piston )

Ollie

[murph the surfMember]

Big thanks there, Ollie
We are about to attack it. :pinch:
Cheers
Murph and Son

[murph the surfMember]

Well we put the main bits back together before Tim had to go around to his Girls place.
The rest is mainly plumbing, so he being a plumber, should be able to handle it.
Yes he does know about the bleed screw.
Thanks to all for their input
OBT is a wealth of knowledge
We all know a little bit of something. :cheer:
Cheers
Murph

[DeanMember]

So Murph did you put the single ring piston in it or swapped it for the twin ring ?

Ollie

[Author]

Posts