HUSQVARNA 324L

Scrubcadet10

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Loosen whichever valve the ACR is on until it is no longer active. This should the ACR out of the picture. Kinda hard to pull at 2000 rpm but that is what they are taking the compression reading at.
Loosened up the exhaust valve until the ACR wouldn't act, compression hit 64PSI after multiple quick pulls....

it's a shame my arm won't spin at 2K rpm....
 

Tiger Small Engine

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Loosened up the exhaust valve until the ACR wouldn't act, compression hit 64PSI after multiple quick pulls....

it's a shame my arm won't spin at 2K rpm....
So if you spent two hours doing a tune up, diagnostics, etc. to get this trimmer running, how much did you charge the customer? The trimmer used might be worth $125 on a good day, all in running 100% right.
 

StarTech

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The Husqvarna 324L was a very expensive unit when it was available. Most were over $300.

Beside it is a good learning project on 4 cycle trimmers. OR at least I self train on project like this and only charge what it would normally cost the customer if I knew what I was doing. This is mainly due to lack of service manuals. Heck when I first started on two cycle handhelds it was a huge learning curve. Sometimes it would take me all day to fix one. Now it is usually an hour except for those that require complete disassembly.

Even the service manual that are available on the Honda 4 cycle engine is lacking on a lot of things but does cover the basics.
 

Scrubcadet10

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Yeah I see where you're coming from Tiger.
This is for a friend and I told him I'd do what I could. But I'm not making much head way with it... I finally found my briggs spark tester....it was next to the snake.... spark stays consistent and only stops when the engine stops turning, doesn't appear to be killing it.
But with the compression reading, accurate or not, and the amount of air I had coming into the crankcase during the leak down test I'm confident it's a low compression/wore out engine...didn't look the oil had been ever changed in it. Black...black..
 
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