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TOPIC: Kawasaki Automatic Compression Release

Kawasaki Automatic Compression Release 6 months 5 days ago #115525

  • jacb
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Good morning all.

Who has had issues with their KACR system
From the various forums online it seems to be the cause of a loud ticking noise on the right front side of the head.

Mine was making a really load noise, so decided to open up the top cover and have a look.
What i found, is that it has failed completely, the sliding pieces that are supposed to open slightly have opened up completely and have been hitting against the tappet cover. This will explain why i found aluminium in the oil strainer.

Going to remove it, has anyone else had this issue, and has anyone removed theirs yet?
2009 klr 650 Eagle Mike doo 22 mod, boson pipe snorkel removed / 2007 FUGLY KDX fork conversion
Last Edit: 6 months 5 days ago by jacb.
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Kawasaki Automatic Compression Release 6 months 5 days ago #115526

  • capeklr
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Yes you can remove it, but that puts a lot more strain on the starter gears and starter clutch.
I've had to replace starter clutches and torque limiters together with new exhaust camshafts.
There should be a small spring on the decompression release, is that still there?
"The world is a book and those who do not travel read only one page."
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Kawasaki Automatic Compression Release 6 months 5 days ago #115527

  • jacb
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HI Capeklr

Yes it is, i have read that these get weak? would you suggest replacing it rater?

Thanks for your reply
2009 klr 650 Eagle Mike doo 22 mod, boson pipe snorkel removed / 2007 FUGLY KDX fork conversion
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Kawasaki Automatic Compression Release 6 months 5 days ago #115528

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Also, why would it be hitting the top of the cover?
2009 klr 650 Eagle Mike doo 22 mod, boson pipe snorkel removed / 2007 FUGLY KDX fork conversion
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Re:Kawasaki Automatic Compression Release 6 months 5 days ago #115529

  • Voël
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The spring does not limit total travel of the KACR parts. Have you checked the cam journals for wear? Search my post "Top End Noise" for some insights.

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Re:Kawasaki Automatic Compression Release 6 months 5 days ago #115531

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HI

I cant get the photo to post, but you can clearly see where it has been touching the top of the tappet cover.

I am going to remove the cam tonight and check condition of the cam and journals.

Thanks
2009 klr 650 Eagle Mike doo 22 mod, boson pipe snorkel removed / 2007 FUGLY KDX fork conversion
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Re:Kawasaki Automatic Compression Release 6 months 5 days ago #115532

  • Groenie
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Chop hom af met 'n angle grinder. Myne loop al die laaste 100 000km sonder hom.
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Re:Kawasaki Automatic Compression Release 6 months 5 days ago #115533

  • Dieseldawie
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Groenie wrote:
Chop hom af met 'n angle grinder. Myne loop al die laaste 100 000km sonder hom.

But remember to plug the end of the cam????
I like to drink lots of beer??
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Re:Kawasaki Automatic Compression Release 6 months 4 days ago #115548

  • Groenie
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Dieseldawie wrote:
Groenie wrote:
Chop hom af met 'n angle grinder. Myne loop al die laaste 100 000km sonder hom.

But remember to plug the end of the cam????

Only if you remove the whole KACR by pressing it out. If you cut it, part of it stays in the cam.
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Re:Kawasaki Automatic Compression Release 6 months 4 days ago #115558

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Here is what the cover looks like

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2009 klr 650 Eagle Mike doo 22 mod, boson pipe snorkel removed / 2007 FUGLY KDX fork conversion
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