Homelite chainsaw won't start

DfghOctober 18, 2011

Homelite ut 10946a. I used it to cut down a tree and it worked fine except the brake kept going on. I took the brake off and shortened the spring but didn't touch the motor but now the motor won't even try to start. Checked for spark and have plenty. Checked for gas in the carb and engine and it's getting gas. Maybe too much gas. So I bought a new carb and replaced it but it didn't help at all. Anyone have any ideas?

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ewalk

Is your plug wet ?

    Bookmark   October 18, 2011 at 4:51PM
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Dfgh

Yes

    Bookmark   October 20, 2011 at 8:20PM
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ewalk

Have you checked compression ?

    Bookmark   October 21, 2011 at 10:22AM
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Dfgh

Compression is good. If I lay it on it's side for several hours and then try it, it will make a few popping noise and then goes back to no attempt to start. I pulled the exhaust off and tried to start and it attempted to start several times but it was just for a half a second or so. Even though the saw has been rarely used I wanted to be sure it was breathing right.

    Bookmark   October 21, 2011 at 2:44PM
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rcmoser

Your chain can be turned by hand right and not binding up causing the clutch drag then engine down when you try to start it????

IMO Your going to have try to clear the comb chamber beings it's flooding. Several reasons it maybe flooding. operator causing the flooding. carb. needle/seat leaking, weak spring not cutting the fuel off. carb. dirty (probably most likely causing needle to raise off the seat alowing gas to flow (not on new carb.)(not likely beings you replace the carb providing you installed it correctly?).

To clear the saw of flooded condition you will remove the spark plug spray it with carb. cleaner, spray carb. cleaner down the spark plug hole (3 or 4 second blast) pull the rope ( this will remove all the oily gas and reprime the comb. chamber). Depending on how much gas has filled the crank case you may have to pull the rope several time repeating the blast of carb. cleaner couple of time.

Now you got the saw clear of all the mixed gas (oil in gas has to be right precentage or it floods and spark plug will not lite off raw gas sloching around in the comb. chamber.) install the plug and and attempt to start. it should fire right off the carb. cleaner (rev up then die) if it dies prime it again with 2 second blast of carb. cleaner down the carb. venturi. it should fire and rev up after couple of pulls on the rope. Hopefully it will take off and run. With new carb. install properly it should take off and run after the flooded condition is removed providing the H and L setting are close to let it run???

    Bookmark   October 21, 2011 at 9:34PM
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