Whats rong with this picture?

[no_crf50_here]

Well it's time again to pull the motard motor down again and 'play'. upon opening i found pieces of metal (normal) muddy oil (typical) and this...

Note this is the piston out of the '17hp' motor not for much longer...lol

 

[Hillz]

Hahaha i think you need to check your valve clearance's, is it bent?

 

[no_crf50_here]

Havn't taken valves out yet but motor was not down on power at all... lol

nb: I was running a A7 cam, A2 cam does not have this issue

 

[Hillz]

easy fix tho, just die grind that bit out of the piston....

the A7 must bring the valve down futher than the A2

 

[no_crf50_here]

Yeh you could do that, altho i've just got new piston..hi rez - dial up warning!

 

[Hillz]

WOW, you are guna have no problem with valve clearance & your compression is guna be up there...... i would say you will gain yet again more power with that one if you can stop the head gasket from blowing

 

[no_crf50_here]

Index of /motard have a flick thru those fotos

power i will gain

 

[mrbrnz]

looks same as my setup almost I haven't put the high comp piston in yet though.
you might want to polish that exhaust port up a bit more, sand wheel, wire brush, then felt pads all in dremel did mine nicely.

are you worried about TOO much compression with the head and piston? Just the head alone bumped my comp up quite a bit, and along with the HD valve springs makes it a bit hard to kick. Not sure I sitll want to put the piston in still even.

 

[coolmodee01]

hmmmm valve to big recess in piston way to small gotta hate that one

high comp to the max i like it

 

[headsmess]

wrong? hmmmmm, i see nothing wrong looks like its just the right weight n everything...

um....youre using the missus' kitchen scales!!!!!! definitely a no-no

oh! you mean the piston!

lol!

 

[no_crf50_here]

heads been pulled down, bent intake valve & snaped off the top of the valve stem.

bent 1cm or so from the top

 

[Hillz]

told ya! . it was bent,

& you were still making power!!!! i'm guess 20hp with the new piston & valve that dont hit lol

 

[no_crf50_here]

lol.. All a learning curve, makes me think of the hp loss have new motor built, feels strong can't wait to take it to the track on saturday.

 

[no_crf50_here]

Looks good just like that!

Sound is average but

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