Question about Makita DCS6401 20 20",64cc Chainsaw 2 Cycle

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New ms230 stihl chainsaw won't start

When pulling starter cord, good spark from plug. Put petrol down plug hole still won't fire. Anyone got any ideas what the problem may be and hopefully a solution!!!

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  • stevenedward May 28, 2009

    ok will give try,many thanks

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I have a MS180C, and I had the same problem. I discovered that the saw is very tempermental with the amount of fuel in the tank. If you fill it even a bit over the fill line (in the horizontal position) the saw will not start. It will mean re-fueling more often, but you cannot fill the tank "full", only to the line or below.

Posted on Aug 29, 2012

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Sounds like its flooded pull the plug and run pull it a few dozen times to dry it out. then try again

Posted on May 27, 2009

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Posted on Jan 02, 2017

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Assuming you have the right oil-gas mixture and a fresh batch of gas, and you didn't leave old gas in the saw all summer long since last November.

-Take off the dirty air filter and see if saw starts without filter. Do not run without putting in new filter.
-Check exhaust port for mud dobber home or screen clogged with carbon and dirt
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-Take out spark plug > put finger over spark hole and pull cord >> do you feel suction that says you got compression?
-Put spark wire back on spark plug >>> hold spark plug so threads touch bare metal part of spark plug hole >>> pull starter cord and see if spark shows between plug and saw >>> suggest you not hold metal part of spark plug while pulling cord [you'll understand why]
-If spark plug shows spark, then your saw has spark ... so put in new plug and start fresh.

If your saw has compression, spark, and fuel it should start unless carburetor is gummed up because gas was left in tank.
Here is the final trick. Start the saw while spraying WD-40 directly into carburetor and see if you can keep it going with the WD-40. This might take a helper. If this does not work, then carburetor is bad or gas line is clogged at carburetor. Time to take it to the shop.

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My power-washer suffers from same problem after sitting idle.

After paying for a new carburetor, I discovered how important it is to drain the gas if washer is going to sit idle.

Another time, we had a problem with the screen covering exhaust outlet. Deposits from the engine + dirt clogged the screen. Although it's not the solution for everybody, we broke the screen open with a screwdriver and the machine ran fine after that.

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If machine will not turn over at all, then your motor might have run out of oil. Power washer needs oil in 2 places. It needs oil for the engine just like a lawn mower. Oil plugs are located low on each side of engine. It doesn't hurt to change oil, but do NOT NOT turn small engine upside down or oil will get into carburetor which requires removal and cleaning. I learned that the hard way.

The power washer also needs oil for the pump head. This is the box attached to front of engine. Usually 10W20 non-detergent is a good choice. Oil is usually about half way up inside pump head.

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Abell, put a little drop of petrol in the plug hole, replace plug and give it a pull. If it fires up for a moment, it is a fuel starvation problem. Check the carb, clean and make sure the nedel valve in the bottom of the carb is not sticking. Good luck!

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