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Discussion Starter #1
Well it finally happened. A valve let go.
The head isn't salvageable. Sucks because i really liked this combo and knew how to ride it.
New head is at different builders shop. Im sure I'll be just as, if not happier with the new head.


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Man that sucks. You’ve got a lot of money into that motor. Do those iridium plugs get the same gap as a standard plug?
 

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Discussion Starter #3
Man that sucks. You’ve got a lot of money into that motor. Do those iridium plugs get the same gap as a standard plug?
Ive always done box gap honestly. As long as it isnt huge or to small I run it. Never given me an issue

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That sucks!!!

Give me a # for the shee and Ull have funds for ur motor.
Lol.


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Discussion Starter #6
Oh damnnn. MUCHO DINERO.
I got my money worth out of this engine.
And I've been slowly gathering parts for a new engine. It's a when not if these motors a going to let go. 95% of the time it's catastrophic.

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Sucks. Sorry about the value drop and banged up head. Could you tell what caused the valve drop Broken tip or worn keeper groove?

I am in the middle of a top end rebuild with my son. Do you recommend new valve springs? Are they a known problem?
 

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Discussion Starter #8
Sucks. Sorry about the value drop and banged up head. Could you tell what caused the valve drop Broken tip or worn keeper groove?

I am in the middle of a top end rebuild with my son. Do you recommend new valve springs? Are they a known problem?
Nope. I have a guy. The keepers and speong and everything were in place. The shim was cracked. So the head popped for some reason. It was at idle. But not sure if the cracked shim was before or after.
I replace everything all at once. Nothing is being reused.

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Discussion Starter #9
Well sent a head to malaska. He gave me a core charge and a different head.
So for anyone wondering what a port and valve job goes for.
+1 valves all around porting and all parts minus cams.
I need to call web and get some.
Yes there are cheaper options. Could've went stainless valves and a less extensive port.
This is probably the best job an average person could get from a top builder.


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Damn that’s pricey, but will be really nice once you get it back. Quality isn’t cheap, hope you get it back soon so you can get back out there and ride!


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Discussion Starter #11
Damn that’s pricey, but will be really nice once you get it back. Quality isn’t cheap, hope you get it back soon so you can get back out there and ride!


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No, when i went to malaska for the dyno i saw his shop and and was there for 4 hours. He strictly has my business. What he does and knows is absolutely beyond what I could have imagined. Also how many shops and people that turn to him is insane
But I've been riding the dirtbike a lot and got really comfortable on it.


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I'll pay for quality any day over the walk of shame out of the woods off the track

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I'll pay for quality any day over the walk of shame out of the woods off the track

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Discussion Starter #14
All back and ready. Had to pull the old throttle body as we couldn't get a clean idle.
Threw a new one and gt thunder adjuster on. There were some wear marks that I think was causing an air leak giving me a high idle.
Gotta set the tps and play with the tune.
90 and humid wasn't really working out to well for testing.
I have a massive pile of old parts. It's getting insane


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Good deal! Know what you mean on the spares...i could probably put together 2 other quads with the stuff I've got stashed away. Never know what those tracks are gonna throw at you. Glad she's back together.

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Discussion Starter #16
This motor absolutely RIPS. I thought it was good before, the power up the face this thing makes is ungodly.
Found myself panic braking more than I'd like to admit.

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Well sent a head to malaska. He gave me a core charge and a different head.
So for anyone wondering what a port and valve job goes for.
+1 valves all around porting and all parts minus cams.
I need to call web and get some.
Yes there are cheaper options. Could've went stainless valves and a less extensive port.
This is probably the best job an average person could get from a top builder.


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I love my malaska head :)
 

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All back and ready. Had to pull the old throttle body as we couldn't get a clean idle.
Threw a new one and gt thunder adjuster on. There were some wear marks that I think was causing an air leak giving me a high idle.
Gotta set the tps and play with the tune.
90 and humid wasn't really working out to well for testing.
I have a massive pile of old parts. It's getting insane


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Rob you wouldn’t be interested in parting with a couple of those cranks would you?


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Discussion Starter #19
This thing F'in rips!!
For sure WAY more engine than I'll ever need.
Anyone thinking of going for a power build that isn't racing drags or sand dunes, highly highly weight out want vs need.


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