Chainsaw maintenance Lanarkshire

[Stevie777]

Hi, Can anyone recommend a good Saw doctor in the Lanarkshire area.. I appear to have a misfire and need someone to look it over and give me a quote. I have a feeling it could be a sheared flywheel woodruff key though i have no idea how or why it sheared.  The saw fires up and runs ok just getting misfire when i pull the cord. 

[spudulike]

Which saw....365/372 Xtorq perhaps?

[Stevie777]

Komatsu Zenoah G560avs.

[peatff]

I don't understand how you can hear a misfire when you are pulling the start cord. If it runs alright when it's started it has no problem. What is your start procedure ? Video of one running here, is it yours ?

 

Edited May 19, 2018 by peatff

[spudulike]

Idle is a bit fast or those clutch springs are a bit shot!

[Stevie777]

1 hour ago, peatff said:

I don't understand how you can hear a misfire when you are pulling the start cord. If it runs alright when it's started it has no problem. What is your start procedure ? Video of one running here, is it yours ?

 

I never said 'I can hear a misfire', Sorry if it came across that way. What's happening is, When i pull the cord the saw misfires and wants to pull the  cord from my hand. As you can see i can still fire her up after a couple of pulls......

 

 Yes, That video is one i made last night, Poor sound quality as i had the camera too close to the Saw. I can make another video if you wish.

Edited May 19, 2018 by Stevie777

[Stevie777]

31 minutes ago, spudulike said:

Idle is a bit fast or those clutch springs are a bit shot!

Are you referring to the ting ting ting sound coming off it.? It goes away at full rev or when I engage the chain brake. 

[Stevie777]

Does this look sheared to anyone. I cant see any shaft groove because of the way the shaft is hidden by that lip on top of the flywheel. Not sure if it's a shear line or  just some oil creating the impression of the key being sheared

[Stevie777]

in fact, now that i can see it in a bigger pic it does look sheared.

[peatff]

It just looks like a proper separate Woodruff key to me not one cast into the flywheel with the groove in the crank.