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There's a crack in the paint above the busted out piece on the left .I'd like to repair but is this beyond that point?

I got a 257 where the chain catcher boss is pushed in and broken off . I'd like to keep the original case if I can, so I'm looking for someone to weld up the crack and boss. Is anyone here interested in welding it up? Not sure where else to post this.

The description in the link of the impulse grommet being "finicky' are spot-on. My recommendation is to order two (expensive little buggers) and expect one might get damaged during reassembly. I would second the recommendation for a vacuum test when you're done. And as mentioned in that original...

So glad it's gone. I was losing my resistance.

Saw is working, seems to run really great, finally! I'm still not quite sure I'm setting the H screw correctly, so I've it out a bit over 2 turns right now. I'm not 100% sure on the tune-by-ear four-stroking thing, but at 1 1/2 turns it felt a little weak in the cut. I opened it up 1/4 turn and...

Vacuum test. I'll try to fire it up tomorrow

Yes, that's pretty much what it was doing. On the rebuild without a base gasket I took.02 off the bottom of the partition base with a small block plane to try to make sure it lined up well. Seems to have worked. Tapped the spark plug hole with a grease covered tap, that worked well to keep the...

So I got the closed port cylinder and started assembly. The Hyway cylinder seemed a bit nicer than the last one, same with the Piston and ring. So far so good .I ground a small divot in the case to provide the impilse since I was assembling with no base gasket. I measured the squish - awful at...

I tried something similar, I tapped the hole out to 1/8 NPT and got a hose barb to fit . Even after filing the flats off the fitting it still hit the intake bell. Even if I manage to get it threaded all the way in, the hose itself interferes with the intake boot . I've ordered a closed-port...

This picture shows where the impulse tube goes into the cylinder. There's a $5 rubber grommet that goes in that hole, then a tube extends off the carb into the grommet. When the .040 was taken from the base the offset from the carb mount is too large and the tube won't seal to the grommet . The...

Saw is toasted again, burned the Piston with lean running. The JB weld repair and move of the impulse port came apart at the thinned section of epoxy at the bottom of the relocated hole. The ring rotated too. I really don't like this impulse tube design, but I guess it works okay if the...

Thanks. My thought here was that if the impulse tube leaks under vacuum, it allows in more air = lean condition & running problems. But when the piston is falling, before the transfers open, the case pressure might go positive enough to push air out of a slightly leaky connection at the impulse...

that's it exactly. I had to fill the opening entirely with JB then drill the impulse hole about 0.040" higher up, to line up with the tube that comes off the carb base and sticks into that hole. (there's a litter rubber grommet that goes in the hole too) it isn't a hose barb, or some other...

The saw has been assembled now for a while, but it still doesn't run right. I did raise the exhaust port about 0.04" which correspondingly made it a little bigger, but that was it for work inside the cylinder. Because of the goofy setup on this saw for the impulse port, machining the 0.040" off...

hello. I've got a cylinder timing question about a Husky 51 rebuild. I would like to reset the squish to 0.015-0.020, but I measured the aftermarket cylinder at 0.050" squish with no base gasket. (this matched the OEM cylinder, scored & crap.) I measured the stock, compressed base gasket at...

I'm looking for someone who's got time to cut an aftermarket cylinder for a Husqvarna 55. The current squish without a base gasket is 0.050", and I measured a compressed base gasket at 0.010" (I checked the squish with no base gasket, but I'd like to use one so I don't have to cut an impulse...