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Post by edju1958 on Jan 3, 2020 21:14:55 GMT -5
I finally got around to fueling the 902 up today & tried to get it fired up.It would sputter a little like it wanted to fire up,but just didn't quite have enough umph.I let it set after working up a sweat by pulling on it & came back to it about 5-10 mins.later.I pulled on it again & it fired with the choke on.I pushed the choke in & pulled on it again & it roared to life.I throttled up nicely,but wouldn't quite idle,so I shut it off & went to get a screwdriver to step up the idle.Come to find out the idle screw was turned in almost all the way.I tried to start again to no avail.Apparently the saw will only start when it's cold.I've never had an issue like that on a freshly rebuilt Tilly carb.I'll try again tomorrow when it's cold again. I just read that the fuel cap on this saw is an unvented cap & the vent is in the tank.I'm hoping that someone can tell me where the vent is in the tank & how to check if it's plugged. Ed
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Post by onlyhomelites on Jan 3, 2020 22:50:39 GMT -5
Check out the IPl, page 3 part# 53. It's on the back of the fuel tank on the left hand side. To access it I think you have to take the throttle handle off. There isn't a good way to test it, but it likely is goo. You could put a small wire into the vent hole and see if it comes back covered in black sludge.
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Post by edju1958 on Jan 4, 2020 0:21:16 GMT -5
Check out the IPl, page 3 part# 53. It's on the back of the fuel tank on the left hand side. To access it I think you have to take the throttle handle off. There isn't a good way to test it, but it likely is goo. You could put a small wire into the vent hole and see if it comes back covered in black sludge. Rather than go through the entire process of taking off the air box to change out a check valve,wouldn't it be much easier to just put a vented cap on the saw?I suppose that's been already thought of & the problem is in finding a vented cap with the correct threads. Ed
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Post by onlyhomelites on Jan 4, 2020 0:23:36 GMT -5
The A-65741-A cap will do exactly that.
The only risk is if the duckbill is so shot in the vent that the saw leaks fuel when turned at certain angles. I guess you could always plug it with some JB Weld if that was the case.
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Post by edju1958 on Jan 4, 2020 22:19:30 GMT -5
Update on the 902:I checked the fuel cap today & apparently someone else has already upgraded it to a vented cap.It has the sintered aluminum tube in it with most likely a disintegrated duck bill.I started the saw on the 2nd pull & it ran fine for at least 5 - 7 mins.I got it tuned so it would idle nicely.I got all excited & walked over to the wood pile to cut up some wood left by my neighbor last fall.I went to throttle it up for the cut & it died.This saw is baffling the hell out of me.If I had another carb to put on to see if that made a difference I would,but I don't.When I first started the saw it throttled up beautifully.I had an XL-12 red model that did the same thing.Come to find out it has bad crank seals.I'm thinking the 902 has the same problem. Ed
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Post by edju1958 on May 12, 2020 21:02:22 GMT -5
I know there's quite a gap in time on this thread,but I've been working on many other saws & this one got pushed way to the back of the line.The problem with the saw wanting to die when I throttle it up is a weak condenser.I've had the parts for the saw for at least 3 months,but today it finally got tore down.The flywheel looks to have been beaten severely as there are 4 fins missing & the flywheel nut got buggered up too.I'm surprised it stayed on.The points were just dirty,so I took them out & sanded them with emery cloth.I'll look in the back shed tomorrow for a Super 2,as I understand it it uses the same nut (part # 81124).I might have to take tomorrow off to cut the lawn,gotta do that when the sun shines,which is a real rarity here these days.I can work on the saw when it rains for the next 2 days.
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Post by edju1958 on May 13, 2020 18:29:09 GMT -5
There was a change in plans,as usual for me.I decided to work on repairing the lift on my log splitter.I got the splitter apart & went to put the new pillow block bearing on the shaft & found it was the wrong size.Since I had most of the afternoon left for something to do I figured I'd go to the shed & see what I could find for parts saws.Wouldn't you know the 2nd saw I picked up was the old Frankensaw 902.It had many good parts on it & I decided to strip it.It had a nice felling spike,a good (hopefully) 6 shoe clutch w/drum & rim,the flywheel nut,& a good flywheel with all the fins intact.I had one helluva time getting the flywheel off & once it was off I found more about that poor saw.The flywheel was on a 903E engine.I don't know if I can use an electronic flywheel on a points saw.I did end up putting the cleaned points & the condenser back into the saw,but didn't gap the points yet.That'll be tomorrow's job,plus button it back up.
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Post by edju1958 on May 15, 2020 17:27:51 GMT -5
I got the 902 all buttoned up yesterday & checked for spark & had none.The recoil needed a new rope,so today it got one.I pulled the flywheel again to see why it didn't have spark.The points were just a tad wider than .015,but the saw still should've had spark.Then I checked the little stud where the points strap & the coil wire & condenser wire hook onto.It looked like the condenser wire was being grounded out,so it got moved a hair.I put it back together & lo & behold,the saw had awesome spark.Now it was time to fire the beast up again.I fueled it up & put oil in too.A few pulls later it came to life,but it had the same problem when I'd try to throttle it up,it'd die.I tried adjusting the carb every which way from Sun.to no avail.Finally I got out the Seafoam & put a little of that in the fuel tank.I fired up the saw again & within a matter of seconds it was throttling up like it should.There's just a slight hesitation,which might resolve itself,or I might have to tweak the carb a bit.I gotta say that saw really knows how to puke out oil!
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