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Re: Ran chainsaw with brake on and chainsaw will not...
Too much fuel at the sparkplug.The fuel accumulated in the cilinder because of brake left.Put the button in off position,remove the sparkplug and dry it,pull the starter for a while until the fuel is out from the cilinder.Put the sparkplug and start the engine.
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1st add fuel/oil mix to fuel tank , then top off oil tank with bar oil , place saw down on flat surface , press 'ON" button above trigger handle to ON (its marked on case) then pull out blue choke handle till it clicks and stays out , press primer bulb with thumb 8 to 10 times bulb will become harder to press as it fills carb , push chain brake forward (on) ` place left hand on top of saw and right hand on start cord , hold saw down firmly and pull cord vigorsly several times till it sort of starts (sound) , squeeze trigger in and pull cord once more , saw should take off running , chain wont move ,walk to wood pile then disengage the chain brake and cut wood , if saw fails to start after this procedure then there must be a fault in saw , consult a exp small engine dealer for repairs
You should never under any circumstances run the saw with the bar, chain and brake not connected, the clutch is a left hand thread and self tightening, run the saw at full revs and put the brake on, this will tighten the clutch.
It could be the brake has activated, the band is now smaller than the drum, as you tighten the nuts the band which is not properly over the drum is locking against the clutch, thus stalling the engine, you need to remove the cover and load the brake, there is a couple of ways to do this, you can remove the hand gaurd from the saw and use this to insert into the brake mechanism, then pull it firmly back until the brake clicks and the band locks back, or you can remove the clutch and drum, the brake will easily go back onto the saw, you can then load the brake on the saw in the normal way, to remove the clutch, there is two cut a ways in the clutch centre so as to insert a screw driver, you can then strike the head of the screw driver to jar the clutch off against the compression of the saw, it is a left hand thread.
Genral starting procedure on a chain saw is as follows, put fresh fuel into the fuel tank, top up the chain oil tank,switch the ignition on, if the saw has a half throttle position on the trigger lock this, if the saw has a primer depress this as many times as it takes to 3/4 fill the bulb, pull the choke fully out, if it has a deco valve push this in, now place the saw on the ground with the chain brake on and crank the engine ( always have the saw body between you and the cutter bar,NO left hand starting, NO drop starting ) the engine will only fire once on full choke, do not continue to crank engine after the first fire or you will flood the engine, push the choke back in, crank the engine until it fires up and runs,release the chain brake and blip the throttle to release the half throttle device.
Those saws are very finicky. First shake the saw very vigorously, as the saw running dry mayy have sucked dirt to the intake screen. Clean the plug and check gap. Prime, choke and pull till it starts. your plug may be foulled, this happens alot when a saw leans out from running out of fuel.
Your OM (all manufacturers) says to engage the chain brake prior to starting. It is the safest way to start your saw.
I start my saws on the ground (like the OM recommends), right toe in rear handle, wide stance, left hand on front handle with the chain brake disengaged. The saw I used first (Pioneer 1980±) has no chain brake.
I now have a Mac 110 (top handle) that is very awkward to start on the ground. I engage the brake on it before I attempt a start. Whatever method you use Please exercise great caution.
If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck. Lou Thank You for using FixYa.
had the same problem on my husqy 136. replaced oil pump, no joy. filled oil tank with brake cleaner fluid and left overnight then ran saw, this cleared blockage in oil feed pipe and everything is now ok.