J A P 4/3

Hi Steve,

Welcome to our club! The men here (still all male AFAIK) are sane - well, mostly - and trained in many disciplines. It is unusual to ask a question here that touches upon mechanical or electrical matters and find that no one knows the answer.

Obviously, we all specialise in stationary engines, but our conversations can be wide ranging in the extreme and as long as there is an "OT" in the subject line to warn off those who might have no interest in (say) an aircraft related posting, we are all pretty tolerant of each others foibles.

It is a refreshingly well behaved NG and flaming & rude words are not encouraged ;o))

So, what's a JAP 4/3 look like then? I've got a water cooled 750cc vee twin, a 2a & a Mk5.

regards,

Kim Siddorn.

Welcome to the newsgroup, Steve, I'll add my greetings to Kim's.

JAP 4/3 is a 288cc side-valve engine, 70mm bore X 75mm stroke. 3.5bhp @2400rpm.

Tappets 0.010" to 0.012" Exhaust 0.008" Inlet

Carn is Zenith 24T2 (blown-up pic's on our website)

Wico magneto CJ936 Timing 25 degrees btdc Spark Plug Champion L10

Sump takes 1 quart (2 pints - I know, but a lot of youngsters don't!)

Weight 83lbs or 38kg.

Peter