Maintenance & Technical > KX500 Original
Cylinder head what am I doing wrong
Chrisgg90:
Ah get you now.. Thanks
sandblaster:
Thank Motorrad, he turned me on to the issue 8-)
Foxx4Beaver:
Unless you have to send the cylinder out, like you did this time...don't bother pulling the head off.
Next time you need to pull the top end apart...whether it be to check side play in the big end bearing, throw a new piston/rings in it, or just re-ring it....leave the head right on it.
You will have to pull the motor out of the cradle, which is no big deal...but it'll save you from having to buy head gaskets, and you won't have to worry about lapping the head and cylinder due to head warpage....and possibly going through this again.
Unless I'm sending my cylinder out to be re-plated/welded....I never take the head off...much easier.
Chrisgg90:
--- Quote from: Foxx4Beaver on February 20, 2016, 02:10:28 AM ---Unless you have to send the cylinder out, like you did this time...don't bother pulling the head off.
Next time you need to pull the top end apart...whether it be to check side play in the big end bearing, throw a new piston/rings in it, or just re-ring it....leave the head right on it.
You will have to pull the motor out of the cradle, which is no big deal...but it'll save you from having to buy head gaskets, and you won't have to worry about lapping the head and cylinder due to head warpage....and possibly going through this again.
Unless I'm sending my cylinder out to be re-plated/welded....I never take the head off...much easier.
--- End quote ---
Yeah that's exactly what I do but it had to come off because it was going away to be welded. What was worse I had built the whole bike back up again before I refilled the coolant 😭
Foxx4Beaver:
yeah, that's a bummer. :lol:
Before I put any plastics or the fuel tank back on...I fill it, then bleed the system.
Then I'll fire it up a couple times and check for any hose or base gasket leaks. Then I'll bleed the system one more time, lifting the front wheel off the ground to about waist height(another Motorrad procedure), to be sure all the air's out....then finish putting it together.
Doing it this way has worked well for me the past few years.
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