02SierraDur
New member
Hey guys,
I'm just looking to get the old sled going for the season. Last year the carb boot sucked air and I blew one piston on the original motor. I picked up a 88' enticer 340 for parts thinking I could swap the motor. I have pulled the 79' motor, swapped cooling shrouds and installed the 88' motor in the 79' sled. Everything seemed identical except the cooling shrouds and the 79 was e-start and the 88 didn't come with that option. When connecting all the wires up all the wires were identical in colour except two. A black and yellow striped wire coming off the motor is now connected to a blew wire. (They were the only ones left unconnected so i figured they must have changed for year to year). I swapped my 79' coil onto the 88' motor as the motor came without one. I now have no spark and am running out of ideas. I checked continuity between the motor and the coil and the coil and the ground. Everything seems good there. Any other ideas? Would the CDI boxes have changed? I am pretty green to electrical so any help would be appreciated.
Thanks!
I'm just looking to get the old sled going for the season. Last year the carb boot sucked air and I blew one piston on the original motor. I picked up a 88' enticer 340 for parts thinking I could swap the motor. I have pulled the 79' motor, swapped cooling shrouds and installed the 88' motor in the 79' sled. Everything seemed identical except the cooling shrouds and the 79 was e-start and the 88 didn't come with that option. When connecting all the wires up all the wires were identical in colour except two. A black and yellow striped wire coming off the motor is now connected to a blew wire. (They were the only ones left unconnected so i figured they must have changed for year to year). I swapped my 79' coil onto the 88' motor as the motor came without one. I now have no spark and am running out of ideas. I checked continuity between the motor and the coil and the coil and the ground. Everything seems good there. Any other ideas? Would the CDI boxes have changed? I am pretty green to electrical so any help would be appreciated.
Thanks!
odds are the stators are wired differently. you might have to use the 78 stator to get it to run.
02SierraDur
New member
Do you know if there's a way to test the stator? It would save me from pulling the motor apart. I have also heard of tors. I'm not sure if this yellow and black wire would have anything to do with the tors. Ideally if I could compare wiring diagrams off both years I could figure out what's going on. Only seem to be able to find a 79-80 manual. Thanks for the reply!
opsled
Active member
88 would have had TORS, Black/white stripe wire was usually the TORS wire in those days. Grounding it to black would would activate TORS. If you have a black/white stripe wire coming out of the 88 stator leave it unplugged.
Yellow/black stripe was a 12v power source for warmers.
79 didn't have either of them. Early ET twins timed off the PTO cylinder. Later off the mag side. Can't remember for sure but I think 79 was PTO timed. 88 would have been mag side.
Used the stator and flywheel off the 79 engine,
Should solve the problem.
opsled
PS, if you want your E-start to work just have someone mill off the crankcase where the starter would go. It can be done if the engine is stripped of the cooling parts, stator/flywheel and intake manifold. The 79 flywheel has the ring gear and the 79 case can be measured so the machine shop knows how much to take off.
Not a hard
Yellow/black stripe was a 12v power source for warmers.
79 didn't have either of them. Early ET twins timed off the PTO cylinder. Later off the mag side. Can't remember for sure but I think 79 was PTO timed. 88 would have been mag side.
Used the stator and flywheel off the 79 engine,
Should solve the problem.
opsled
PS, if you want your E-start to work just have someone mill off the crankcase where the starter would go. It can be done if the engine is stripped of the cooling parts, stator/flywheel and intake manifold. The 79 flywheel has the ring gear and the 79 case can be measured so the machine shop knows how much to take off.
Not a hard