Stihl MS660 Won't Start - Can't Work Out Why!

[atomicduck123]

Thanks again pleasant and spudulike for your replies. I'll give it a try at repairing the original with a new piston in that case. I had a read of the MS880 thread so I'll follow all that you've written here and there and hopefully resurrect the original. Looks like you can get Meteor pistons for £30 on ebay (I couldn't seem to find the ebay link you added for some reason) 

 

I'd not heard of an impulse line before, I've only worked on little Puch Maxi engines haha, I gather it sends crankcase pressure to the carb to draw fuel though, so I'll be sure to check that to.

 

I'll be sure to go easy on it in that case pleasant and hopefully won't have to join the top end club! The fuel was bought that day and mixed with Stihl oil and the aftermarket kit was made by Aumel, I'm guessing they're terrible!? 

 

Thank you though for all your help, with everything being so expensive at the moment, I really appreciate you passing on the knowledge to aid fixing it at home!

 

Joe

[pleasant]

Pleasure. Good luck and thanks for getting back to us. Make sure you update us with progress...always good to know. 👍

[atomicduck123]

Will do!

[spudulike]

Yes on the impulse line the fuel is below the carb, the impulse line uses the positive and negative pressures in the crankcase to pump the fuel to the carb. The impulse line can split through old age or get pulled off if the bar gets clamped and needs a strong pull to get it out of the cut. This can dislodge the line and is worth checking out.

Not heard of Aumel but Meteor (will post the link again below) are very good and Hyway are a decent alternative if Meteor aren't available.

Puch maxi....that takes me back!!

Heres the link: -

METEOR Piston & Rings Fits STIHL 066, MS660 Chainsaw 54mm 1122 030 2005

WWW.EBAY.CO.UK

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Find many great new & used options and get the best deals for METEOR Piston & Rings Fits STIHL 066, MS660 Chainsaw 54mm 1122 030 2005 at the best online prices at eBay! Free delivery...