What's wrong with this picture?


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Mike Nixon
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What's wrong with this picture?

Post by Mike Nixon »

Image
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NobleHops
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Re: What's wrong with this picture?

Post by NobleHops »

#2 spark plug is just a little tired. It's leaning over to rest.

Where did that metal end up Mike? In the rings? Ugly.
Nils Menten
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'82 CBX, among others.
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Mike Nixon
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Re: What's wrong with this picture?

Post by Mike Nixon »

You got it, Nils. Cross-threaded plug, run that way many miles, resulting in a damaged exhaust valve. 0 psi compression and 95 percent cylinder leakdown. Customer brought it in for carb work.
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Re: What's wrong with this picture?

Post by daves79x »

His carb rebuild is going to run a little over budget.

Dave
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Re: What's wrong with this picture?

Post by Mike Nixon »

Yepper. Sad sad sad.
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Re: What's wrong with this picture?

Post by EMS »

...and here I thought, somebody customized his CBX with a crossfire injection cylinder head... :mrgreen: :DD
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Re: What's wrong with this picture?

Post by Larry Zimmer »

BIG ouch!!! Great example/lesson why sparkers should be run all the way down by hand.
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Re: What's wrong with this picture?

Post by NobleHops »

daves79x wrote:His carb rebuild is going to run a little over budget.

Dave
Great. Coffee spit all over my keyboard. Thanks Dave. :lol:
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wyly
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Re: What's wrong with this picture?

Post by wyly »

Z
Last edited by wyly on Tue May 08, 2018 12:59 am, edited 2 times in total.
CBX a work in progress, still improving...GS1150EFE completed and awaiting modifications.....RD350, remnants in boxes scattered throughout the garage
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Re: What's wrong with this picture?

Post by Mike Nixon »

Yes, another good technique. I use an old CB750 kickstart lever rubber. Been in my toolbox so long it's now nearly petrififed....
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Re: What's wrong with this picture?

Post by asacuta »

I just use a spark-plug socket and extension. I spin it down by hand and then torque. I can't even imagine how much torque he must have applied to install a plug at that angle.
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Re: What's wrong with this picture?

Post by Jeff Bennetts »

I use an old rubber spark plug boot, holds tight enough to get the plug started but will slip on the plug if it's cross-threaded.
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Re: What's wrong with this picture?

Post by Mike Nixon »

Good techniques all! Wow, I didn't realize you fellas were so resourceful! LOL!
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Re: What's wrong with this picture?

Post by Mike Nixon »

No more mystery. The heart of the matter. The classic "pie slice." Don't neglect those valve clearances, everyone.


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NobleHops
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Re: What's wrong with this picture?

Post by NobleHops »

Yuck. How is the valve seat Mike? And are the spark plug threads repairable, at least via timesert? Ugly business.
Nils Menten
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