Thread: Kawasaki 300X engine failure.
11-13-2011, 11:25 PM #1
Kawasaki 300X engine failure.
Will update later on the post.
2011 Kawasaki 300X - 31hours
96RON ~ 93MON
Motul 300V 10W40
R&D Cooling kit with water filter repellent
Secondary oil catch can
Engine was running strong for 2 hours, no problem at all.
7600-7800 RPM all day, was doing some offshore and suddenly engine slow down and ski vibrated.
I switched off the engine.
But here the first thing I found out:
- Spark cylinder 4 is gone
Exhaust valve dropped and hitted the spark
- lot of water in cylinder 4
Water found it cylinder was caused either by towing or flushing with engine off.
Last edited by Olomana; 11-17-2011 at 05:37 PM.
11-13-2011, 11:32 PM #2
- Join Date
- Jan 2009
Interesting and sorry that sucks. curious what plugs where. U running?
Any mods ?
11-14-2011, 12:00 AM #3
R&D speed by pass module, R&D intake grate, R&D rideplate and extra oil catch can. Otherwise it is all stock, OEM spark plugs plus we are using 93 MON fuel.
11-14-2011, 12:09 AM #4
11-14-2011, 12:20 AM #5
tentivly i would say fuel, have you had the exhaust manifold off at any time? and or water injestion
11-14-2011, 12:25 AM #6
Thinking you dropped a valve and cracked a cylinder. Sorry to hear that. How many hours?
11-14-2011, 12:27 AM #7
Plugs 1,2,&3 look decent.... don't think its fuel.
11-14-2011, 12:43 AM #8
Thats bullshit spend all that money on a new ski and this is what you get i hope u get it sorted out mate
11-14-2011, 01:05 AM #9
darn... sorry to hear this - keep us informed re what you find...
11-14-2011, 02:07 AM #10
Remember we have 96 RON here, so approx 93 MON.
There was no sign of detonation, hesitation, jerk... before I lost one cylinder.
I have used my ski with a new gaskets since since 15+ hours without any issue.
No sign of rust expect recently on spark 1, but was just a bit.
Only cylinder 4 had water.
I removed oil to check for milkshake and metal parts... nothing, I pulled out my 4.5L of oil...
Compression will come tomorrow.
I think my block is cracked because when I cleaned the hull, removed all the water by lifting the front.
Came back 15 minutes later and lifted again, more water was coming out. BAD SIGN.
This is what everyone in my group is telling me... I have very very bad luck this year.
Oh and I will not have any warranty or dealer to help, ski was imported.
So basically $18000 in the drain for now.
I for myself is a Mercury Outboard dealer and I trust my products, but nothing is perfect and my products failed sometimes... lol
I was so fun this Sunday for 2 hours until that happen.
Oh and I told my partner that MH 2013 will have to wait...
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