Home
Basic Dirt Bike How-To's - Video
Dirt Bike How-To's - Video
Living The Moto Life - Video
Bike Tests | Shoot-Outs - Video
Forums
What's new
Latest activity
Log-In
Join
What's new
Menu
Log-In
Join
Navigation
Install the app
Install
More options
Close Menu
Forums
Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
KTM Top end question
Reply to thread
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
[QUOTE="GlennP, post: 25277, member: 18736"] Strick, Measuring the old gasket is not the best way, as its compressed slightly during installation. I rebuilt several 300 EXCs, just finnishing one last week, and this is how I do it: First get a good metric caliper. Clean old gasket material from all surfaces. Put the new (or cleaned original) piston on the rod without rings(is eaiser for this temp installation). Put the cylinder on the cases without a gasket and hand tighten a couple of the base nuts. Move the crank with the flywheel to TDC. Carefully measure the distance from the edge of the piston dome to the cylinder deck. This is the required base gasket thickness for dimmension X = 0. You should round off to the next thickest available size as it won't be exact, and X must be between 0 and .1mm. After your power valve is cleand and reassembled (locktite on all fasteners) set the main flap height to 46mm from the cylinder deck to the center of the flap edge when the valve is fully closed. This is dimmension "Z". If everything is done correctly, the PV control rod will snap on the ball joint without any vertical preload after the cylinder is torqued down. Good Luck. Glenn '00 GasGas XC250 [/QUOTE]
Verification
Which ocean is California closest to?
Post reply
Forums
Dirt Bike Discussions By Brand
KTM MX & Off-Road Dirt Bikes
KTM Top end question
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top
Bottom