Year of engine

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Joined: Tue Aug 25, 2020 5:53 pm

Year of engine

Postby Damianharris » Wed Aug 26, 2020 11:06 am

Hi guys would anyone be able to help me out. I got a engine for my bike and the guy I got it off didn’t know what year it was from. I got it very cheap so I took a chance on it. The engine number is EX500AE155614
I thought it was an early model so I went and got a early ecu but the engine won’t start. It has fuel and spark and the compression is good. I think it’s the wrong ecu and the timing is out due to this. Any help would be very much appreciated.

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Re: Year of engine

Postby yanw » Wed Aug 26, 2020 12:39 pm

89 onwards so could be either but with a number that high I'd guess it was gen 2.

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Re: Year of engine

Postby Martinj » Fri Aug 28, 2020 5:07 pm

Pull the flywheel cover off the left hand side of the engine.To identify which flywheel is fitted. You can identify between early & late types. See other posts on here for the differences. A gen1 may have been modded to gen2 design but it’s highly unlikely a gen2 engine would have a gen1 flywheel fitted.
91 gpz500
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Re: Year of engine

Postby john » Wed Sep 09, 2020 11:09 am

An easy way to tell if you have an early engine...88 to 94/ to look at the cooling fins. 4 fin engines are 1st gen (but some 4 fins were carried over into 1st year second gens as kawa used up old stock), and 5 fin engines are 2nd gen...94 onwards (mainly).

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