sixteenacrewood
ArboristSite Member
Hi Everyone
I haven't posted in a while but hang out lurking pretty often.
I have a problem with my chainsaw I use for milling and cannot figure it out. For the record I did use the search feature and also posted in the chainsaw section here, but did not get any feedback. So, sence I am a chainsaw miller, I guess I'm meant to be here.
I have a Dolmar PS-9010 on a Panther pro cairage mill, 42" bar, and she also powers a 67" Alaskan. I run this saw a lot.
My problem is she is bogging down. Idles fine but will not reach top RPM wheather in the cut or sitting out of the wood.
I am a good mechanic (or so I thought). Here is what I have done so far
Muffler is not clogged (no screen) and exhaust port is clean
Cylinder, piston and rings are two years old and still look new. I broke her down completely for an inspection.
new plug, and spark looks good. I found a reference online about the spark should look blue, I think mine looks more yellow, but I could be wrong.
I put a used carb on it and she ran fine for about a half hour then back to the same problem.
I have a vacume pump and blocked the intake/exhaust and she held a vacume for 15 min without change.
I cleaned and sanded the coil contact and magnets on flywheel (400g paper) and where it contacts the saw body. magnets are strong.
fuel filter and fuel line are new
I also opened the fuel cap when it was running to see if the tank vent was clogged, but no change.
I run a lot of chainsaw gas and my mix is good, so def not bad gas.
Could it be the coil? I have never had one go bad so I don't know what the simptoms are.
Any help or ideas on what to try would be appreciated.
Thanks in advance
I haven't posted in a while but hang out lurking pretty often.
I have a problem with my chainsaw I use for milling and cannot figure it out. For the record I did use the search feature and also posted in the chainsaw section here, but did not get any feedback. So, sence I am a chainsaw miller, I guess I'm meant to be here.
I have a Dolmar PS-9010 on a Panther pro cairage mill, 42" bar, and she also powers a 67" Alaskan. I run this saw a lot.
My problem is she is bogging down. Idles fine but will not reach top RPM wheather in the cut or sitting out of the wood.
I am a good mechanic (or so I thought). Here is what I have done so far
Muffler is not clogged (no screen) and exhaust port is clean
Cylinder, piston and rings are two years old and still look new. I broke her down completely for an inspection.
new plug, and spark looks good. I found a reference online about the spark should look blue, I think mine looks more yellow, but I could be wrong.
I put a used carb on it and she ran fine for about a half hour then back to the same problem.
I have a vacume pump and blocked the intake/exhaust and she held a vacume for 15 min without change.
I cleaned and sanded the coil contact and magnets on flywheel (400g paper) and where it contacts the saw body. magnets are strong.
fuel filter and fuel line are new
I also opened the fuel cap when it was running to see if the tank vent was clogged, but no change.
I run a lot of chainsaw gas and my mix is good, so def not bad gas.
Could it be the coil? I have never had one go bad so I don't know what the simptoms are.
Any help or ideas on what to try would be appreciated.
Thanks in advance