I've got a C9 that I bought a little more than a yr.ago.After going through it & cleaning it up it fired right up & ran well even though the compression was at 120 psi.I even took it out cutting last yr.& was impressed with it.A few weeks later I was going to use it again & it wouldn't fire up.I rebuilt the carb & still it won't run,so I put it away till now.It'll fire on a prime,but won't pull fuel on it's own from the tank.I pulled the tank cover off thinking that possibly there might be a crack in the line,but it looks good.I noticed the tank has some white death going on.How do I get rid of it?I have a tank cover from a C5 that's in much better shape that I can put on.The main problem though is getting the saw to run again.It has decent spark.
I can't use Red Kote on the tank while it's still together on account of the gasket/filter.I'll have to "paint" it on while apart.This is the least of my worries.I still need to figure out why it won't pull fuel.
I was able to Red Kote the tank cover really well & just dab some on the bottom of the fuel tank on the saw where it's still on the saw.In this 90* heat it dried fairly quick,Lol.
As far as the tank gasket goes,I talked with an old-timer who worked on these saws back in the day (Buford Parrish) & he had an IPL that didn't have a tank gasket on any of the C series saws.His IPL just stated to use the epoxy cement supplied by Homelite dealers back in the day.I'm going to eliminate the gasket & use Permatex MotoSeal & see how it works out.I've put a new Tygon hose in the tank with another new filter & expect to get it back together later today.
I did a compression test on it yesterday evening & it came in at 130+ psi,it came up over 10 # since I got it last yr.The only other thing I can think of that might be preventing it from starting is the reeds could be stuck open,or a bad fuel line going to the carb.
I got the fuel tank back together with one minor glitch.one of the screws for the tank cover at the bottom is stripped.I didn't know what else to do,so I put some Loctite on it & put it in.If the screw was at the top I wouldn't mind so much,but at the bottom is very crucial.I hope it doesn't leak.I guess I'll find out when I put fuel in it.
I put fuel in the saw earlier & no leaks! I guess I got luckt there.BUT....the saw starts up now even without a throttle lock pin,& it screams at WOT.I've never had a crank seal go that bad that fast.I'm thinking possibly a reed problem,but it starts fairly easy,or a cylinder gasket.I guess about the only way to find out is to do a pressure test.So,I guess the fuel line in the tank was bad even though it looked good.
Post by onlyhomelites on May 24, 2021 8:05:45 GMT -5
This may sound like a dumb idea, but some carbs have multiple holes in the throttle linkage arm...is it possible that it's hooked up "backwards" and defaulting to full throttle? I only say it because I've done it....
Is that the C-9 from me?No Ron,that saw wouldn't run on it's best day,Lol.At least not the way it is with no spark & in need of an overhaul.The psi was only at 60.I've got a new piston kit for it & a new condenser,it's just finding the time to tear it down & complete the project.
This may sound like a dumb idea, but some carbs have multiple holes in the throttle linkage arm...is it possible that it's hooked up "backwards" and defaulting to full throttle? I only say it because I've done it....Thanks for the advice Leon,but I think it's only got one hole for the throttle linkage to hook up.I will check it out to verify though & post back later.Edit:Yup,only opne hole for the linkage to hook into.I had another thought - the fuel line from the tankl to the carb might have a hairline crack that could be sucking air too.
Last Edit: May 24, 2021 13:22:00 GMT -5 by edju1958
It just occurred to me that it could have a bad carb gasket.Regardless of which of these it could be I'll need to pull the saw apart to some extent.At least the saw will get a good cleaning out of it all.
I found the problem - I think.I pulled the rear handle off (that created another problem,waiting for pics) to get to the fuel line where it attachers to the fitting that goes out to the tank.No soonmer did I put a pair of pliers on the fuel line than it broke right off at the fitting.It had a hair line crack & was sucking air causing it to lean out at WOT.
The other problem that was created was the helicoil that's in the gasket pulled out like a string when I pulled the handle off.I might be able to cut the wire sticking out with a pair of diagonal cutters leaving about 1/2 the helicoil intact.I'll have to look at the IPL to see if that part is even available.I'm considering using a C5 handle as it's the same handle,only different color.The throttle trigger on the C9 handle is shot too,so the C5 handle might be a much better option.Edit:I found the gasket for the reed valve adaptor,parrt # 55946,but I can't find the other gasket ,part # 55946,& the spacer,part # 58391.Maybe these part #s have been superceded?
Last Edit: May 25, 2021 18:28:27 GMT -5 by edju1958
I couldn't find the C5 handle which was just as well,but I remembered that a member here had sent me a handle off a C series saw back over 3 yrs.ago.I gug it up & found that most likely it came off a C7 because it's red in color.The only difference with this handle was that it was set up for the older single reed & there are no helicoils in it.This makes me wonder if the helicoils were factory,or if someone just added them on for some reason.If the C5 & C7 didn't have factory helicoils ,then why did they put them in the C9?I can't see any useful purpose for them.The IPL doesn't show them either.
OK,after looking things over again I found out why there were helicoils in the handle.Apparently I opened a can of worms by taking the handle off to clean & install a new fuel line.Some bozo had stripped the threads on the bigger boss on the right side that holds the carb reed adaptor onto the saw.I was going to use another handle from a C7,but I'd have to put helicoils in the saw & I know I have them,but can't find them.I was able to get the throttle lock pin working again on the original handle,it was just loaded up with lots of oil & sawdust.I figured someone else had been in the saw before because there was only one gasket on the spacer under the handle &there should've been 2 gaskets - one on each side of the spacer.The helicoils weren't placed properly,they should've been in the saw itself,not the handle.I'm fairly sure the helicoils should be 1/4-20.Hopefully with new gaskets,new fuel line (again) & new helicoils (if I can find them) & the saw will be up & running again soon.
Post by tangobravo on May 26, 2021 18:06:04 GMT -5
A few decades of "back yard service " results in many "interesting repairs". Always good to go thru everything and hopefully they didn't get too deep into the thing. First owner sellers usually net better conditions than multiple-owner saws!
Last Edit: May 26, 2021 18:07:29 GMT -5 by tangobravo
God made the mountains, God made the sky, God made the people, god knows why
Good news - my gaskets arrived earlier in the week & I got to the C9 again.I put the gaskets in place & put in a newe fuel line from the tank to the carb & secured the handle to the saw.I would've finished up tonight,but a friend gave me a call & we had some catching up to do.I just need to reattach the kill switch wire & put the recoil back on,then I'll see if it'll start & run again.