Hi all, i have a Stihl hs 74 hedge cutter and the starter spring went, i got a new spring fitted it but that went also so i purchased the whole starter unit and that is fine now but it wont start, does not even try, there is a spark and after trying to start it if i remove the plug it is wet with petrol. I have put a new plug, air filter and fuel filter on it still no luck though. It has good compression. Any ideas?
Stihl hs 74 wont start
- Thread starter Bootsy
- Start date
EngineMan
Lawn Addict
A quick test with the multimeter will show that if there is continuity between the low tension terminal (which is used to switch off the engine) and earth, its gone and should be replace.
You may like to just remove that wire (switch wire) to see if it will start before you replace.
You may like to just remove that wire (switch wire) to see if it will start before you replace.
EngineMan
Lawn Addict
You maybe able to see a spark, but its a "Stihl" so test it, if its gone, its gone...!
Hi, there are two wires that conect to the coil, both go to the on/off switch, both terminals on the coil show a short to ground. I have removed both conections and will put it back together and see if it works, will post results later. I expect that this means the coil needs replacing? Thanks for the help Mr EngineMan.
Ric
Lawn Pro
Yeah remove the shroud and look at the muffler, should be a small plate that you can remove. Under the plate is the spark arresting screen remove it and clean and see if that helps, if that thing is plugged you'll have a wicked time trying to start the machine.