Question about Makita LS1040 - 10In Miter Saw

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Wht dose it spark on startup and allso when it stops but not during is it the brushea?thanks


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This is usually brush related. It could be that the rotor needs to be machined round or that there is damage to it. Check the brushes first. Disconnect power, remove the cap over the brush and pull it out. Remember which way it came out. Check for length of brush, should be more than 1/4" long, check the spring to see if it is discoloured. Check the end of the brush, it should be smooth also. The sparks are an indication that the contact is not good for some reason.

Posted on Apr 12, 2015


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Thanks for your help. We got the high idle to stop ether by working the PCV valve hose or by putting our old throttle position senor back on. However, we still have a misfire, and we get codes P305 an

Well code 316 means the computer has detected a miss during startup, and code 305 means cylinder number 5 is not producing power. That could be a lack of fuel, spark, or compression.
At least you know to check cylinder 5 for the problem.

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1 Answer

5.4 3V V8 Triton in BA Fairlane 2003

What's the question ? Give more detail
on wht u need to know, if the parts are damaged
replace them. Now there's a trick to replacing
these parts an not having to do a full rebuild
you will need a BIG air compressor. Do one
cylender at a time roll motor over to the
cylinder that you will start with where both
or all valves on that cylinder are closed
take spark plug out take a male air hose
connector that will screw in spark plug hole
with Teflon tape an on hose from compressor
have a female end now hook hose to male
connector that you screwd in spark plug hole
now cut the air on. What this dose is when
you take apart valve train one this one cylinder
the valves don't drop in to engine cylinder
hope this helped u

Jun 16, 2014 | Vehicle Parts & Accessories

1 Answer

I'm getting codes, p0301 and p0316. I replaced the spark plugs and cylinder 1 spark plug was wet when i removed it. What could it be?

Code 301 is a cylinder miss on cylinder one, and 316 is a miss detected during startup which is probably caused by code 301.
If the plug is firing, you could have an injector problem on that cylinder.

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1 Answer

2006 f150 engine ticking

Change the spark plugs in it, Allso if it has a lot of miles on it allso get new spark plug wires for it,

Nov 27, 2012 | Cars & Trucks

1 Answer

No spark all ohmeter checks ok

4-pin upper left=blu/wht
upper right=yel/wht
bot left=blu
bot right=yel

6-pin upper left=yel/with blue stripe
upper right= green
mid= blank
mid= blank
bot left=blu/with yellow stripe
bot right=blk/wht

can you rate this thanks!

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1 Answer

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check the gap between flywheel and coil should be check magnet on flywheel.let me know what you find out.o if spark still weak change coil.let me know.ok

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1 Answer

Missing problem

The best way is to replace the sparking coil and then while doing this it will be wise to check the spark plugs and the leads. Cheers.

Mar 21, 2009 | 1999 Daewoo Nubira

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