- Location
- Stouffville, Ontario
If you can solve this one you win the prize - SOLVED
- Thread starter J..
- Start date
D-Roc
I forgot!
- Location
- Dirty River Rider
what is the water spraying out the head? is it out that little nipple? cylinder cracked? if your burning water, which it sounds like, that would explain the misfire/ not so clean revving motor. I suspect a water leak somewhere. why did you deck the cylinder? suspect a sleeve dropped? what does your pisser look like when you are revving it like that on the trailer? good flow or is it spitting? sounds like you checked all this but in that first video it sure looks in water spraying out the head gasket or head bolt.
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Water on the head is just with the stock head. It's the little water take off for stock exhaust I didnt seal too well. The ADA heads back on it now. I had the cylinders decked becasue I originally thought water was leaking on the stock head gasket due to an overheat ages ago. They cleaned up 1.5 thou.
Yea, it has the miss with the hod off on and off in and out of the water.
The ign coil and leads were a new unit from Jetmaniac, I recon it's good in that department.
Over heat sensor is disconnected and leads are sitting nicely inside e box with insulation.
New excitor coil is Yamaha, new pulse is aftermarket but it starts first time and excluding the miss timing seems to be fine. It's never backfired.
Tank valve tests fine by mouth. Could possibly be fuel supply related but I really dont tend to think so.
Symptoms suggest it's ign related. I'm booking in with a mechanic whos going to hook it up to an oscilloscope. I need to rule out ign once and for all. Spark looks visually nice and theres nothing else I can check or change but I cant be certain that spark is ok.
Yea, it has the miss with the hod off on and off in and out of the water.
The ign coil and leads were a new unit from Jetmaniac, I recon it's good in that department.
Over heat sensor is disconnected and leads are sitting nicely inside e box with insulation.
New excitor coil is Yamaha, new pulse is aftermarket but it starts first time and excluding the miss timing seems to be fine. It's never backfired.
Tank valve tests fine by mouth. Could possibly be fuel supply related but I really dont tend to think so.
Symptoms suggest it's ign related. I'm booking in with a mechanic whos going to hook it up to an oscilloscope. I need to rule out ign once and for all. Spark looks visually nice and theres nothing else I can check or change but I cant be certain that spark is ok.
OCD Solutions
Original, Clean and Dependable Solutions
- Location
- Rentz, GA
Has this ski ever run properly to your knowledge?
D-Roc
I forgot!
- Location
- Dirty River Rider
New Ada head and domes or used?
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- Location
- Stevensville, MD
Have you checked and ohmed out both the ground from the stator, and the ground wire from the starter to battery? Wiggle it while you ohm it out.
Run a second ground, from the engine to the back of the ebox, or to the negative post inside the ebox.
Run a second ground, from the engine to the back of the ebox, or to the negative post inside the ebox.
OCD Solutions
Original, Clean and Dependable Solutions
- Location
- Rentz, GA
Troubleshooting 101, start with what changed immediately before the issue. Since you have ruled out the head already, that just leaves the exhaust.
I heard a story a long time ago about an issue with a headpipe where the top screw was blocked in such a way that it caused an odd spray pattern that was allowing water to get back up into the cylinder. Any chance you didn't get your screws set correctly after you had the powder coating work done?
I heard a story a long time ago about an issue with a headpipe where the top screw was blocked in such a way that it caused an odd spray pattern that was allowing water to get back up into the cylinder. Any chance you didn't get your screws set correctly after you had the powder coating work done?
WILKEY
SO FAR CHANGE SUCKS!!!!!!
Fingers crossed for ya. Dealing with bugs like that is very irratating
D-Roc
I forgot!
- Location
- Dirty River Rider
He has the hood off so rule out exhaust gasses choking the motor. I think OCD is onto something. It sounds like burning water and if it's not the head, it could be the manifold or head pipe. Look for cracks or bad gaskets. I run my top screw closed and the middle closed, just crack the bottom enough to cool the coupler.
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- Location
- Victoria BC
Take the head pipe off and pressurize to look for cracks, inspect the manifold as well.
waxhead
wannabe backflipper
- Location
- gold coast
Disconect the stop switch, I have seen them corrode behind the plug and cause a misfire.
D-Roc
I forgot!
- Location
- Dirty River Rider
total motor geek thread! i love reading about the problems fellow riders stumble upon. you ride salt water correct?
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- Location
- the jetski grave yard
what i love is some of the hair brained responses as the possible problem : )=