OzVMX Forum

Clubroom => Tech Talk => Topic started by: John Orchard on January 24, 2013, 06:00:52 pm

Title: Which KX250 uses a dykes top ring?
Post by: John Orchard on January 24, 2013, 06:00:52 pm

Can anyone tell me which model KX250 uses a dykes top piston ring?  I'm thinking maybe '74, I scored a stack of standard bore (70mm) rings to suit a KX250 but the top rings are dykes so I want to source a piston to match the rings.

Title: Re: Which KX250 uses a dykes top ring?
Post by: oldfart on January 24, 2013, 06:18:09 pm

74       model had a 69.5mm Std bore
75-76    "        "      70.0mm Std bore

Title: Re: Which KX250 uses a dykes top ring?
Post by: John Orchard on January 24, 2013, 06:29:16 pm

Ah thanks for that, so maybe the 74 & 76?

Title: Re: Which KX250 uses a dykes top ring?
Post by: Viper666 on January 24, 2013, 07:00:48 pm

 PM Stan S, he used to have a Kwaka shop in the 70's & beyond. Very good on all bikes for that matter. Road trail MX.

Title: Re: Which KX250 uses a dykes top ring?
Post by: Stevo17 on January 24, 2013, 07:06:25 pm

Hey John, is that the type that has an L shaped cross section and comes up to the piston crown? If so the 83 and 84 use that type.

Title: Re: Which KX250 uses a dykes top ring?
Post by: John Orchard on January 25, 2013, 08:48:58 am

Thanks guy's  :-)

Title: Re: Which KX250 uses a dykes top ring?
Post by: GMC on January 25, 2013, 08:52:19 am

I think my 250 A4 used that type of ring, had a 75 /76 too but cant remember what it used.
Do you have a part No?