hello guys well i am trying to bring another homelite back to life , this time its a xl 925 well i got it all togehter the carb is pulling fuel and there is spark but the only thing is i cant get a full pull on the starter rope with the plug in it , it pulls over fine with plug out and there is no decompression valve on it i did put new rings into it and i have not check the compression pounds yet .
i did hear theses saws have alot of compression but i think i should be able to pull it over any info would be great
thanks i just tryed to check the compression and i could only get 3 half pulls out of it
Last Edit: Jul 28, 2020 19:09:53 GMT -5 by 99tahoe
A 925 in good shape is a handful to crank over very well, that's for sure. Lots of cc's and lot of compression. If you're trying to crank it without the bar on it, that handicaps you even more. A long bar will help stabilize the saw so you can give it a better rip. Or you can put any bar on it and clamp the bar in a solid vise to get a better rip on it.
XL-12",Super 2-14",Super EZ-16",330-16",Super XL-16",360-20",XL500,450-20",Super XL 925-24",Super 1050-36",750-36",ST260 trimmer,AP125 pump,AP520 pump,HTC12 tiller,T16 tractor w/48" mower, tiller and front blade
Post by tjthechainsawmech on Jul 30, 2020 0:32:31 GMT -5
My rebuilt Mac sp850 with a new piston and rings broke a thick rope with me trying to pull it over. lol Sometimes these rebuilt beasts have Killer compression for sure. I'm betting around 180 to 200 psi the way it pulled...barely. haha
I went true the fuel system and I seem to be ok carb is pulling fuel next question is when I check for spark with my tester ( a light that goes between plug boot and plug ) the light lights up like crazy e en with a slow pull but there is either no spark at plug or week spark .... have to get a new plug probably
It might be worth checking the insulation on leads from the module under the flywheel to the transformer, as well as the generator. They were prone to cracking, particularly around the hold down points under the flywheel. I had erratic spark on a 922 at one point. That was the issue. It didn't manifest until mid RPM. Likely the leads started to vibrate and short at a certain frequency. New leads, problem solved.
Last Edit: Aug 6, 2020 12:21:46 GMT -5 by Hoggwood
well i put a new plug into it and it fires and runs a little longer but just dies out i thing it might be the one crank seal i did not replace behind the flywheel i have 1 so i am going to try it the wiring looked ok but i will go thru that again while its apart not sure what else to check thanks