This came with another donor bike to finish my Red Hunter NH350 and is now surplus to requirements. It was an old trials bike but would make a decent bike for someone. The engine needs the top end but turns over by hand piston looks good and so does the bore. Gear box turns by hand too, Magneto need...

Vincent.vanGinneke wrote: ↑Mon Jan 15, 2024 4:31 pm Hello Sye Butts , what you could do is putting a (good) picture of what you have in the for sale section and ask for a bid

Thanks Vincent good idea I will.

Hi all sorry if this is the wrong place on the forum to post. I bought a job lot of parts last week and i have a spare frame with alloy rear mudguard, nice free gearbox and engine (barrel,good piston and bore, good no head) it is still in the frame with magneto(that needs servicing) mounted oil tank...

That's quite a question. While a 500 top end will go on a 350 bottom end it's not worth doing unless you change the 350 crank for a 500 as the strokes are different. Pretty much any 1956 and later cycle parts will swap. The primary drive changed 1955 to 1956 and while clutch parts will swap you can...

Hi all i hope you are all enjoying your holidays. This site has been so helpful so far and i wish to thank you all. I was wondering is there a list of interchangeable parts for our bikes...eg does the 500 top end fit the 350 bottom end what frame bits fit other models. any info on what bits if any w...

I should be able to help with as I am the drawings officer for the club. Drawing E9/3125A will provide all the dims you might need, we also have drawings of many of the component parts. You will have to be a member to order, details on the web site - £5 for the 1st drawing and £3 for subsequent. Th...

Afternoon all I dont suppose anyone knows where i could find any drawings of a 1956 NH 350 frame and swinging arm with dimensions etc. Factory ones would be wonderful. Any help in pointing me in the right direction will be great .Thanks all.

For info, those are the exact original equipment pistons Ariel used for the alloy head 350s. Back in the mid 1970s Writers had a 'bin' full of them for £5.00 a go, with rings and gudgeon pins. Unfortunately only in std bore size - but that stop me and a mate buying a couple! :mrgreen: SG If only i ...

Sye, that's the type I don't like. If your current piston is OK and the top ring groove is not worn and no ridge at the top of the bore consider just re ringing it. Nev Cheers Nev yep all measured all good. Piston and bore looking good piston looks like it hasn't done much work. Thanks for reply

charles.bulloch wrote: ↑Tue Dec 19, 2023 10:14 am Have you checked the ring gap, it may not need new rings?

Not yet I am giving the barrel and bore a clean today then I will.