Brute Force sunk- Wont start - Kawasaki ATV Forum
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post #1 of 5 Old Today, 10:14 AM Thread Starter
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Unhappy Brute Force sunk- Wont start

Hi there;

As the title says, my son swamped my 2009 Brute 750.
I wasn't there so I don't know really how high, but looks like water injected in the exhaust only, not the air box.

It sat for a week before I could work on it.

I took off the exhaust, drained the water.
Drained the fuel tank, now fresh fuel
Pulled plugs, cranked over to remove any water.
Compression 15lbs rear cylinder, 0 lbs front cylinder.
Put oil in cylinders, still won't start.

Filled cylinders with mixture of Tranny fluid/Diesel/WD-40/PT blaster.
Cranked a couple times, then refilled them, and let sit for 5 days to loosen up rings.
I have lots of spark!, and fuel pump working.

Still no change in compression.
If I put in oi through spark plug holes, l I can get the rear up to 45 lbs, and the front up to 25 lbs.
Still not enough to start.

Starting to get depressed. Though for sure I would get enough compression.

I have read all the threads, read the MIMB page on a sunk Brute V twin.

Maybe I'll go back out, and try some more oil, and try again.

Something I'm missing guys?? Thanks for the help.
Jeff
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post #2 of 5 Old Today, 10:34 AM
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Quote:
Originally Posted by simcoeice View Post
Hi there;

As the title says, my son swamped my 2009 Brute 750.
I wasn't there so I don't know really how high, but looks like water injected in the exhaust only, not the air box.

It sat for a week before I could work on it.

I took off the exhaust, drained the water.
Drained the fuel tank, now fresh fuel
Pulled plugs, cranked over to remove any water.
Compression 15lbs rear cylinder, 0 lbs front cylinder.
Put oil in cylinders, still won't start.

Filled cylinders with mixture of Tranny fluid/Diesel/WD-40/PT blaster.
Cranked a couple times, then refilled them, and let sit for 5 days to loosen up rings.
I have lots of spark!, and fuel pump working.

Still no change in compression.
If I put in oi through spark plug holes, l I can get the rear up to 45 lbs, and the front up to 25 lbs.
Still not enough to start.

Starting to get depressed. Though for sure I would get enough compression.

I have read all the threads, read the MIMB page on a sunk Brute V twin.

Maybe I'll go back out, and try some more oil, and try again.

Something I'm missing guys?? Thanks for the help.
Jeff
Letting it sit a week with water in it was...well..lets just say wasn't the right thing to do. We assume at least before any cranking you did change the oil and filter. As the compression isn't coming up, and it will never start with it that low, you need to do a leakdown test to see where it's going. You should know that dumping cold water on hot exhaust...and intake valves most always warps them. And if you find it's leaking out the valves, there is at least a top end job in your future. If he's run it with water in the oil...well, bearings will be damaged and will need a full re-man.

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post #3 of 5 Old Today, 11:16 AM Thread Starter
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Hi there;

So went out and tried again.
3 liberal squirts of 10w30 oil done the spark plug holes.

Wammo, fired up! Stalled.

3 more squirts of oil, tried again. Fire in the hole, and its alive. Runs, and idles now. Kept it going 30 secs,

shut her down, and now will begin the 3-5 oil flush changes to get the oil clear again.

Thanks guys. Will give updates later and let you know how many oil flushes. When it happened to my Honda Foreman 10 years ago, it was 5 oil flushes till completely clear.

Thanks for the help
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post #4 of 5 Old Today, 11:57 AM
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Really should have changed the oil before you started if there was water in it. Water makes a darn poor lubricant for automotive style bearings.

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post #5 of 5 Old Today, 12:15 PM
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Originally Posted by NovaKaw650 View Post
Really should have changed the oil before you started if there was water in it. Water makes a darn poor lubricant for automotive style bearings.
Yeah and most people don't realize what happens to those little water particles under the pressure of the power strokes. It turns to steam quickly in hundreds of mini explosions, scaring the surfaces of both the inserts and the crank. Then it's just a matter of time to failure. Hopefully the OP gets a few years out of it.

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