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Makita DCS3410TH help


marmot
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Hi I've got a Makita DCS3410TH that I bought in France three years ago. It's been sat idle in the garage for eighteen months, and won't start now.

Not being a mechanic I'm scrabbling around for info to try and avoid having to pay someone to change a widget and get it back up and running. What are the things I should check out? Something dried out.......?:confused1:

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OK I've put fresh fuel in. I'll change the spark plug and air filter - anyone know a good place to get these things?

 

you should be able to get the spark plug from almost anywhere that sells garden machinery or car parts why dont you clean the air filter they are usually reusable

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Right - step 1 - take the plug out, put the cap on it, earth it on the cylinder and pull the saw over and look for a spark, if it is missing, it could be the plug, coil or the stop wiring or switch, if it is there proceed to step two.

 

Step two, put the plug back in with the plug in, put the choke on full and the fast idle on if not linked to the choke, give the saw 8-10 pulls and check the plug, if it is wet, the carb is fine and you will need to check the compression, if it is dry then the carb is probably gummed up and needs a clean up.

 

Carb clean - pop off th etop and bottom cover, check there is fuel in the diaphragm part of the carb, remove the H&L carb adjusters and blast some carb cleaner down the holes and put both screws back in fully then turn out one turn on each screw.

 

Compression - lift the saw by the start handle and it should fall slowly - 10-12 seconds is about right, 4 seconds and your piston is fried - this can be checked by removing the muffler and looking at the skirt of the piston.

 

There you go - 30 years of motor repair in four paragraphs - in three words - spark, fuel and compression!!!

 

Personally - forget the plug unless you have no spark and the air filter unless it looks like the insides of your vacuum cleaner bag.

 

Spud

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