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Stihl Primer Bulb


Steven P
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Good afternoon,

The mice have been chewing my chainsaw - a nice tooth shaped hole in its primer bulb (a Stihl MS181). (they like petrol, they did the same to the lawnmower too)

 

So I asked the man in the deakership today for a primer bulb which is exactly what he sold me - the flexible rubber rubber bulb. taking the saw apart just then it looks like I have to replace the whole primer pump assembly.

 

So my question, is there a trick to taking the primer pump asembly apart to replace just the rubber bulb or do I have to go back to the man and ask for the correct pert?

 

 

Just to note that if I cover the hole with my thumb it all still works OK, but before I put the saw back together and before I buy a whole pump just wondering if I can fix it tonight.

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I don't think you can just replace the bulb, I forked out 9 quid and put a new complete one on but if you have just a bulb and it is a snug fit over the old one why not try gluing it on with sealall or uhu which are petrol proof, I have yet to try  everbuild stixall with petrol but that is my general purpose sealing glue now.

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The separate bulb is for the carb mounted primer used on small tools like strimmers and hedge cutters, take it back and swap it. If you are desperate to use the saw just join the two pipes and bypass it till you get one.

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thanks, that's what I thought.

Not desperate to fix it tonght apart from it was in bits in the living room (always  conversation starter at home "What is that dong there" so a fix would have been handy. I'll just use evo stick till I get the correct part. ta.

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