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Old 05-23-2011, 09:32 PM   #1 (permalink)
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07 zx14 vs 08 engine only

Does anyone here know if the crankcase, pistons, or gears, are different for 07 to 08? I have a blown 08 motor, a rod blew trough both the upper and lower crankcase. I have purchased an 07 engine. I plan to use my 08 head and throttle body. Am I missing anything will this engine run the same as my 08 did. I will be using the same pc5 and auto tune and the same exhaust. Kawasaki change anything on the motor from 07 to 08?
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Old 05-23-2011, 10:01 PM   #2 (permalink)
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dont know the answer to your question but what happened to the 08 engine? Seems awfull soon for it to blow up that way from natural causes.
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Old 05-23-2011, 10:24 PM   #3 (permalink)
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I was careless with my afr map and auto tune install. Got the afr way out of wack. I think that is what did it. I didn't plug the air filter hose that pumps fresh air to the exhaust. It was a stupid small mistake when messing with my map. That said, don't mess with your map and trust auto tune to fix it fast enough to save your motor.
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Old 05-23-2011, 10:31 PM   #4 (permalink)
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I thought it would just run rich or foul some plugs, but evidently to much fuel will blow a rod through the side of the motor.
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Old 05-23-2011, 10:34 PM   #5 (permalink)
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ok, thanks for the response. Dont plan to do a lot to my 08 ZX14, the exhaust for sure but plan on keeping the dualls, just something that looks and sounds better. Sorry for what your dealing with and hope it works out ok.
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Old 05-23-2011, 10:36 PM   #6 (permalink)
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I thought it would just run rich or foul some plugs, but evidently to much fuel will blow a rod through the side of the motor.
DAmn, that is one expensive mistake.

Sorry to hear about that, and thanks for posting that up so maybe others will not make the same mistake.

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Old 05-24-2011, 05:38 AM   #7 (permalink)
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evidently to much fuel will blow a rod through the side of the motor.

hmmmm, does anyone agree with that theory?
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Old 05-24-2011, 06:10 AM   #8 (permalink)
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Tell me it is not my fault cuz I would feel better.
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Old 05-24-2011, 12:57 PM   #9 (permalink)
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hmmmm, does anyone agree with that theory?
In theory it can if you dump loads of fuel in and gas wash the cylinders on a new engine because when u gas wash the cylinders it washes the oil away but the rings would have to be new and Sharp enough to dig into the cylinder wall stopping dead and snapping the rod but its highly unlikely . There are a lot of if's in there lmao. Something smells fishy.
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Old 05-25-2011, 05:41 AM   #10 (permalink)
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Does anyone here know if the crankcase, pistons, or gears, are different for 07 to 08? Did they change the head? OR did they just change the map and open the flys faster?
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Old 05-25-2011, 07:42 AM   #11 (permalink)
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Does anyone here know if the crankcase, pistons, or gears, are different for 07 to 08? Did they change the head? OR did they just change the map and open the flys faster?
i don't have a definit answer but go to apache motor sports .com and go to there oem parts finder and compair part numbers. sorry I couldn't be more help. I tink they are the same for the most part but I know there have been a few small changes.
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Old 05-25-2011, 08:26 AM   #12 (permalink)
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Does anyone here know if the crankcase, pistons, or gears, are different for 07 to 08? Did they change the head? OR did they just change the map and open the flys faster?
The head is different. There are small differences between them but the head was probably the biggest change even though small.
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Old 05-25-2011, 11:53 AM   #13 (permalink)
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i don't have a definit answer but go to apache motor sports .com and go to there oem parts finder and compair part numbers. sorry I couldn't be more help. I tink they are the same for the most part but I know there have been a few small changes.
According to part #'s for the transmission there are 7 differant gears, it looks like all the shafts and all other parts in the transmission stayed the same. So looks like i will be changing the gears.
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Old 05-25-2011, 11:59 AM   #14 (permalink)
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The head is different. There are small differences between them but the head was probably the biggest change even though small.
I assumed they changed the head also, but no part #s changed.
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Old 05-25-2011, 12:13 PM   #15 (permalink)
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I thought the heads changed too. I know the injector angle changed so I figured they changed the head somewhat.
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Old 05-25-2011, 01:37 PM   #16 (permalink)
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I thought the heads changed too. I know the injector angle changed so I figured they changed the head somewhat.
Don't know about the injector angle, but the motors are otherwise identical. I do know changes have been made to the ECU which make secondary butterfly removal less of a powerband enhancing trick.
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Old 05-25-2011, 01:50 PM   #17 (permalink)
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ok so Pulled the oil pan and counted teeth on the two gears i could reach on both engines the gears I counted had differant part #'s but the had the same tooth count so I am gonna go ahead and go with the conclusion that they are the same. I am also glad to see that cuz changing them would have taken more time.

Not sure why the differant part #'s, I was planning to change my head anyways just incase they changed little stuff, for better flow. It seems that just using part #'s will not be for sure, I should but will not be taking measurements on the gears.

I have read alot of post and differant forums and the only differance that comes up is the map, and how the opened the flys earlier, means no tre needed for 08 models. there are other strands on that subject on this site.

I believe all my questions have been answered so thanks to all for the responses.
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Old 05-25-2011, 08:34 PM   #18 (permalink)
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I thought the heads changed too. I know the injector angle changed so I figured they changed the head somewhat.
hummm I thought the injectors were in the throttle bodies?
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Old 05-25-2011, 10:02 PM   #19 (permalink)
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Injectors are different. The '08's have more holes but flow less than the '07's. something like 330 cc's vs. 440 cc's.

The crank and clutch basket have different gears (ratio). Not an issue unless you try to swap one or the other.

Those are the differences that I know for sure...

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Old 05-26-2011, 01:15 AM   #20 (permalink)
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hummm I thought the injectors were in the throttle bodies?
Yes but i thought they would of milled the head at a different angle since the injector are at different angles. I guess not. Must have figured out a way to do it without messing with the head.
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