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Author Topic: 1984 kx500 piston  (Read 10617 times)

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Offline piney

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1984 kx500 piston
« on: May 29, 2012, 08:33:44 am »

can anyone tell me wether you can run later model piston in an 84
i have a standard barrell in excelent condion with only slight wear on piston  and rings
i have been able find plenty of later mod (ie post 87) but can,t find any standard earlier.
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Offline Freakshow

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Re: 1984 kx500 piston
« Reply #1 on: May 29, 2012, 09:18:29 am »
thats suprising i find with any piston you usually find a million standard bores, but all the overbores seem to be taken up especially as time goes by.
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Offline Nathan S

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Re: 1984 kx500 piston
« Reply #2 on: May 29, 2012, 09:47:56 am »
Kawasaki = Electrofusion bore = all genuine pistons are standard size.

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Offline Stevo17

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Re: 1984 kx500 piston
« Reply #3 on: May 29, 2012, 11:16:59 am »
I have heard that the newer pistons work ok. Kawasaki say that they do, others say that you need to trim a little off the skirt where the curved cutaway is.  The newer pitons have two rings also.   Someone with greater engine building knowledge than me may be able to confirm.
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Offline JohnnyO

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Re: 1984 kx500 piston
« Reply #4 on: May 29, 2012, 01:49:25 pm »
You can use the later model piston but you need to remove the bottom ring so it doesn't snag in the inlet port.
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Offline piney

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Re: 1984 kx500 piston
« Reply #5 on: May 29, 2012, 03:47:40 pm »
thanx for help guys, I'll let you know the outcome
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Offline Stevo17

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Re: 1984 kx500 piston
« Reply #6 on: May 29, 2012, 06:01:35 pm »
85 model piston is the same as the 84 also. You may be able to use a newer model Wossner or Pro-x  piston or similar that has one ring.
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Offline piney

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Re: 1984 kx500 piston
« Reply #7 on: May 30, 2012, 08:34:02 pm »
thanx steve. i'll check em out
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Offline 490 tez

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Re: 1984 kx500 piston
« Reply #8 on: June 10, 2012, 08:38:21 pm »
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Offline BAHNZY

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Re: 1984 kx500 piston
« Reply #9 on: June 10, 2012, 08:54:50 pm »
Quote from: JohnnyO on May 29, 2012, 01:49:25 pm
You can use the later model piston but you need to remove the bottom ring so it doesn't snag in the inlet port.

We do exactly what John has mentioned, just drop that bottom ring off or you'll be in a world of pain.
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Offline Hardo

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Re: 1984 kx500 piston
« Reply #10 on: December 26, 2014, 04:58:36 pm »
Guys, does anyone here know if the 'Rocky Cycle CO' pistons are okay to use in the standard bore barrels?

I have a NOS barrel for my 84 KX500 engine and want to know if these pistons are fine to use.
Someone once told me that the Rocky pistons are made at the same factory as the NOS Kawasaki pistons... I dont know.

Any knowledge out there that can help please?

Cheers!
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Offline mick25

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Re: 1984 kx500 piston
« Reply #11 on: December 26, 2014, 08:08:03 pm »
Quote from: Hardo on December 26, 2014, 04:58:36 pm
Guys, does anyone here know if the 'Rocky Cycle CO' pistons are okay to use in the standard bore barrels?

I have a NOS barrel for my 84 KX500 engine and want to know if these pistons are fine to use.
Someone once told me that the Rocky pistons are made at the same factory as the NOS Kawasaki pistons... I dont know.

Any knowledge out there that can help please?

Cheers!    I have no idea hardo but it's at the top of the posts now , all I can do ::)
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Offline FireKwaka

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Re: 1984 kx500 piston
« Reply #12 on: December 28, 2014, 08:55:53 am »
I can't remember were I got my piston from 18 months ago but apparently a small hole should be drill in the piston, my new piston already had the hole.
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Offline Hardo

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Re: 1984 kx500 piston
« Reply #13 on: January 01, 2015, 11:39:03 am »
Thanks Micky G... lol   can always count on you popping up randomly ... ;)

Firekwaka - was it a Genuine Kawa or an aftermarket Rocky piston?
Do you remember at all?

Cheers,
Dave.
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Offline JohnnyO

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Re: 1984 kx500 piston
« Reply #14 on: January 01, 2015, 12:15:58 pm »
I had a Rocky piston in my 84 KX 500 and had no problems with it.
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