Eventually
New member
I hate having to post another one of these threads, but I've read just about every other one on the internet. It's long, I hope some of you make it through the whole thing, lol. As stated above:
Worked great last season, fogged out, stored upright indoors. Over the winter I pulled the power head to fix the shift lever, but did not touch the carb/ignition/block/gearcase. Replaced exhaust gasket during reassembly. (but not driveshaft to crankcase gasket?)
Starts on the first pull in neutral, revs great, idles low. Bogs out immediately in forward or reverse gear. If I drop it in with slightly higher idle I can get a handful of prop spins before I have to slide it back into neutral and let it rev back steady again.
Gearcase rebuild: drained oil, checked prop, clutch dog, gears and shift rod, impeller assembly, all fine. Resealed and filled with fresh oil, I can turn the prop with a firm grip.
Crankcase rebuild: Piston rings are clean, sharp-edged and springy, repacked needle bearings, cleaned piston grooves, resealed case. Replaced head gasket, no change. Compression tester waiting to come home with me after work. Thumb check prior to all that felt quite low -manual says "lbs compression rec when compressed: 2 to 4 pounds." which makes no sense. unless that's ring compression? idk (crankcase to driveshaft gasket on order, it's still the original despite pulling the head off multiple times so it's my current theory)
Carb rebuild: float, gaskets, float valve assembly all a few years old, no signs of wear. Bowl and jets appear clean, no signs of varnish or debris. Float valve needle showing first signs of wear, but barely. Low speed needle shows no wear, but also has no packing -just a rubber/nylon washer. My service manual shows two packing washers but not the rubber/nylon one. The guide on here shows all three, yet my original build only has the rubber/nylon washer. That has never been changed, yet has always run fine. (new packing and washer currently on order)
Fuel: New gas tank, new fuel line and bulb.
Ignition: Haven't changed in a few years since doing plugs, wires, condensers, points, oiler wick, timing adjust. Ran fine last year and was not altered. Points still look new. Tossed new plugs in again, no change.
I realize I went in the worst possible order, but now I've made a full lap around the track. What else can I check/try? Thank you in advance for reading my novel, and for any insight you may have.
Worked great last season, fogged out, stored upright indoors. Over the winter I pulled the power head to fix the shift lever, but did not touch the carb/ignition/block/gearcase. Replaced exhaust gasket during reassembly. (but not driveshaft to crankcase gasket?)
Starts on the first pull in neutral, revs great, idles low. Bogs out immediately in forward or reverse gear. If I drop it in with slightly higher idle I can get a handful of prop spins before I have to slide it back into neutral and let it rev back steady again.
Gearcase rebuild: drained oil, checked prop, clutch dog, gears and shift rod, impeller assembly, all fine. Resealed and filled with fresh oil, I can turn the prop with a firm grip.
Crankcase rebuild: Piston rings are clean, sharp-edged and springy, repacked needle bearings, cleaned piston grooves, resealed case. Replaced head gasket, no change. Compression tester waiting to come home with me after work. Thumb check prior to all that felt quite low -manual says "lbs compression rec when compressed: 2 to 4 pounds." which makes no sense. unless that's ring compression? idk (crankcase to driveshaft gasket on order, it's still the original despite pulling the head off multiple times so it's my current theory)
Carb rebuild: float, gaskets, float valve assembly all a few years old, no signs of wear. Bowl and jets appear clean, no signs of varnish or debris. Float valve needle showing first signs of wear, but barely. Low speed needle shows no wear, but also has no packing -just a rubber/nylon washer. My service manual shows two packing washers but not the rubber/nylon one. The guide on here shows all three, yet my original build only has the rubber/nylon washer. That has never been changed, yet has always run fine. (new packing and washer currently on order)
Fuel: New gas tank, new fuel line and bulb.
Ignition: Haven't changed in a few years since doing plugs, wires, condensers, points, oiler wick, timing adjust. Ran fine last year and was not altered. Points still look new. Tossed new plugs in again, no change.
I realize I went in the worst possible order, but now I've made a full lap around the track. What else can I check/try? Thank you in advance for reading my novel, and for any insight you may have.