So my wife picked out a cheap used 94 jazz on craigslist last summer. I spent some time replacing ride plate, repairing crack and replacing bushings/seals in stator housing, and discovering that previous owner had the impeller housing upside down thereby blocking the cooling flow for the water. Now it makes sense why the previous owner said it always ran fine...for about 5 minutes.
Once it was runable, I attempted to start in the water. Fresh gas, new plugs, checked for spark, etc...all the usual suspects were taken care of. After a lengthy purge, via cranking, getting all the gunk out of the block (previous owner must have left the damn plug during uncovered storage - water line witness marks in hull up to intake :facepalm: it was not getting fuel.
Carbs cleaned and rebuilt and acheived what appears to be proper fuel. I finally got it running, very rough, for about 10 seconds and it quit. I lost spark.
As I was checking for spark, I noticed magnets flying out of flywheel. Flywheel removed and found a damaged black stator.
The trigger has cracks in the epoxy near the wires. I will try to attach a pic of this crack. Trigger checks 1230, 1222, 1220 ohms. I'm not too concerned about the crack, but there seems to be a little play when the trigger timing is advanced. Do the trigger rotating surfaces wear to a point where concentricity may be an issue? I hate to spend additional money on a trigger, especially considering I will need ~$450 for stator and flywheel. Is the crack an issue?
Pic showing crack in trigger epoxy...
What a find!
My theory is the previous owner had overheated engine and it seized. If this occured many times, the epoxy holding magnets to flywheel eventually failed due to excessive heat cycles. I am curious about the upside down stator housing why the stator housing was removed in the first place. Maybe I have a fresh impeller! Compression in engine checked OK. Other than the basic overall health of the engine, should I be concerned with other components reliability due to excessive heat? Can the switchbox be damaged if the stator shorted out due to the magnet falling off? I thought I read somewhere that a voltage spike or something killed someone's switchbox.
Reading through some of these troubleshooting threads are depressing, it sounds like I could be chasing high $$ issues with this Sport Jet. I hope this thing runs once I get the obvious repaired. This boat is becoming a $$ pit. Ride plate not cheap! Too bad gas prices are crazy, I plan on taking about 44 victory laps around the lake this Memorial Day!
Optimism is a good thing, right?:redface:
Once it was runable, I attempted to start in the water. Fresh gas, new plugs, checked for spark, etc...all the usual suspects were taken care of. After a lengthy purge, via cranking, getting all the gunk out of the block (previous owner must have left the damn plug during uncovered storage - water line witness marks in hull up to intake :facepalm: it was not getting fuel.
Carbs cleaned and rebuilt and acheived what appears to be proper fuel. I finally got it running, very rough, for about 10 seconds and it quit. I lost spark.
As I was checking for spark, I noticed magnets flying out of flywheel. Flywheel removed and found a damaged black stator.
The trigger has cracks in the epoxy near the wires. I will try to attach a pic of this crack. Trigger checks 1230, 1222, 1220 ohms. I'm not too concerned about the crack, but there seems to be a little play when the trigger timing is advanced. Do the trigger rotating surfaces wear to a point where concentricity may be an issue? I hate to spend additional money on a trigger, especially considering I will need ~$450 for stator and flywheel. Is the crack an issue?
Pic showing crack in trigger epoxy...
What a find!
My theory is the previous owner had overheated engine and it seized. If this occured many times, the epoxy holding magnets to flywheel eventually failed due to excessive heat cycles. I am curious about the upside down stator housing why the stator housing was removed in the first place. Maybe I have a fresh impeller! Compression in engine checked OK. Other than the basic overall health of the engine, should I be concerned with other components reliability due to excessive heat? Can the switchbox be damaged if the stator shorted out due to the magnet falling off? I thought I read somewhere that a voltage spike or something killed someone's switchbox.
Reading through some of these troubleshooting threads are depressing, it sounds like I could be chasing high $$ issues with this Sport Jet. I hope this thing runs once I get the obvious repaired. This boat is becoming a $$ pit. Ride plate not cheap! Too bad gas prices are crazy, I plan on taking about 44 victory laps around the lake this Memorial Day!
Optimism is a good thing, right?:redface: