KX Riders

Maintenance & Technical => KX500 Original => Topic started by: mazstro on May 07, 2007, 06:03:54 PM

Title: how much can you shave the head?
Post by: mazstro on May 07, 2007, 06:03:54 PM

just curious if shaving the head is possible on my 2002  kx5 and what kind of gains i will see

Title: Re: how much can you shave the head?
Post by: kaw rider on May 08, 2007, 12:17:35 PM

what is the stock squish set at.

Title: Re: how much can you shave the head?
Post by: billygoat500 on May 08, 2007, 01:49:27 PM

use the search engine, lots of info

Title: Re: how much can you shave the head?
Post by: stewart on May 08, 2007, 04:31:23 PM

hey brian  thanks.... i  would say .025 cut on head with .010 head gasket and 0 deck hieght but if you  run 110 reaserch or 105 moter octane fuel   but you will lose sevral horse power with stock dome angles . check squish with a piece of silver solder .062 dia put in plug hole up agianst cyl wall rotate moter  then mike solder itshould not be much thiner than ,030 stewart

Title: Re: how much can you shave the head?
Post by: KXcam22 on May 09, 2007, 07:17:45 AM

Stewart,
  What angle do you set the squish band at?  When you cut the head do you trim the piston crown to match the head angle? (all these pesky questions....). Thanks. Cam.

Title: Re: how much can you shave the head?
Post by: stewart on May 09, 2007, 09:44:41 AM

 i dont cut pistontop i cut 4 degree chamber in head

Title: Re: how much can you shave the head?
Post by: kaw rider on May 09, 2007, 12:57:03 PM

what no body makes homemade flat top pistons.  :-D

Title: Re: how much can you shave the head?
Post by: mazstro on May 09, 2007, 07:17:28 PM

so is it safe to just shave the head .025 and run the .010 head gasket without checking it after and what will i notice powerwise?

Title: Re: how much can you shave the head?
Post by: stewart on May 09, 2007, 08:49:12 PM

hey brian i  always check it in line with wrist pin  with soft core less solder  .062 dia.and i turn moter past tdc 4 or 5  times i would always pre fer some one check the pieces seprate and figure but its  a neat way to look at the angle between  head and piston  and clearnce for some one who dose not want to pull head or have the stuff to check with...........  ps dont ever cut any head or use athinner gasket with out checking

Title: Re: how much can you shave the head?
Post by: KXcam22 on May 10, 2007, 06:45:48 AM

Stewart,
  Ah the secret is out, always checking with the solder in line with the piston pin. That way any piston rock won't introduce much error.  I have seen guys use plastacine but it is very hard to mic. Cam.

Title: Re: how much can you shave the head?
Post by: FuriouSly on May 10, 2007, 07:48:03 PM

Hmmmm... with all the head shaving going on around here I would think some of you would go and get Laser treatment so you can throw away those razors....   :wink:

Sly