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JAP 2A Exhaust Valve

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JAP 2A Exhaust Valve Empty JAP 2A Exhaust Valve

Post by Bigfoot_T Wed May 31 2023, 20:57

I'm hoping someone here can help me out, I've trawled the internet high and low but still can't find valves for a 2A for sale anywhere in the world - I can locate JAP 5 valves, can't find information on their dimensions but they certainly don't look like they'll fit....

JAP 2A Exhaust Valve Img_2010

As you can see the exhaust valve has broken at the pin hole, it's my own fault for being heavy-handed with it - someone has tried turning it over while the valve was stuck and that mushroomed the end enough that it wouldn't pull through the guide.

If anyone has a spare in their collection I'd love to know if it's available for sale/swap.


Cheers,

David

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JAP 2A Exhaust Valve Empty Re: JAP 2A Exhaust Valve

Post by blue cat Thu Jun 01 2023, 09:39

I have a tin of valves but I don't know if any of them are JAP 2A. Some dimensions might help, length, stem thickness, head diameter, in the search.

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JAP 2A Exhaust Valve Empty Re: JAP 2A Exhaust Valve

Post by Bigfoot_T Thu Jun 01 2023, 14:53

Thanks for the reply!

Length = 74.3mm
Stem thickness = 7.1mm
Head diameter = 23mm
The length from the bottom of the valve to the start of the hole for the collet pin is 14mm
JAP 2A Exhaust Valve Img_2011
I don't know if this photo will help but I appreciate you having a look!

Cheers,
David

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JAP 2A Exhaust Valve Empty Re: JAP 2A Exhaust Valve

Post by Woodsman Thu Jun 01 2023, 17:02

Have possible alternative but away from home the moment. Will get back to you if it is a goer

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JAP 2A Exhaust Valve Empty Re: JAP 2A Exhaust Valve

Post by blue cat Thu Jun 01 2023, 19:54

Dimensions helped a lot, I had one in my valve box.

JAP 2A Exhaust Valve 101_4017



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JAP 2A Exhaust Valve Empty Re: JAP 2A Exhaust Valve

Post by Bigfoot_T Thu Jun 01 2023, 20:49

Blue cat saves the day! - or rather saves my JAP 2A haha.

Also thanks to Woodsman for having a back-up plan.

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JAP 2A Exhaust Valve Empty Re: JAP 2A Exhaust Valve

Post by blue cat Sat Oct 14 2023, 16:37

WARNING

Just be aware that this member Bigfoot_T never paid me for the JAP 2A valve which I sent to him.
My fault probably for not asking for payment before sending.
Lesson learnt.

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JAP 2A Exhaust Valve Empty Re: JAP 2A Exhaust Valve

Post by Woodsman Sun Oct 15 2023, 10:22

Thanks for the heads up.

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