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Re: JAPton blog

Posted: Mon Jul 27, 2026 7:34 pm
by JackyJoll
What a marvellously unusual special!

Someone is bound to have raced one in the 1950s, maybe in a formula that allowed dope fuel.

Re: JAPton blog

Posted: Mon Jul 27, 2026 8:35 pm
by Rockburner
JackyJoll wrote: Mon Jul 27, 2026 7:32 pm Black or clear silicone won’t look too bad.

Yes, unless you actually like leaks, you need either a big breather, or a moderately big breather with a reed valve in it.

Even then, it may always emit a bit of “oil mist.”
"Misting" I can handle.... "Flooding" tends to be problematic! :lol:

Re: JAPton blog

Posted: Mon Jul 27, 2026 8:39 pm
by Rockburner
JackyJoll wrote: Mon Jul 27, 2026 7:34 pm What a marvellously unusual special!

Someone is bound to have raced one in the 1950s, maybe in a formula that allowed dope fuel.
Someone did: the inspiration for this bike was a bike my Dad saw in the 50s, a JAP speedway engine in a Triumph frame that was winning everything, apparently. Dad thought "I'll build myself one of them one day". Eventually he did.