Running in 1950s Peugeot

[JoeP]

Hello there,
could I have some advice please on running in a basic refurbed engine. It's a 150cc steel liner cylinder very mildly ported with alloy piston putting out about 6 bhp at 6000rpm. The original owners manual I've got says to not exceed 15/25/50 km/h in 1/2/3 gear for the first 1000 km with a fuel mixture ratio of 8% dropping to 7% when run in. Is this necessary, as it's basically a 20/30s design, or will I get away with 4%? Also should I use mineral oil and why and what oil for the gearbox?
I'm new to all this and don't want to knacker my engine, after a few years getting to this point and considerable expense with minimal spares availability.
Thanks,
Joe

[dapper]

If you're going on the original owners manual, I'd say that with the improvement in modern oils, you should be able to run in on 4% safely. Personally, I'd use the same running in technique as for a Lammy mileage and speed wise. As for the gearbox oil, can't you check on a Peugot forum for advice? There must be some others out there. What type of clutch is it? If similar corks to Lambretta, then I would have thought ST90 would be OK, but best to check first. Good Luck with it, all the same.

[JoeP]

Cheers, I am a member of the French owners site but can't get on there as I've forgotten my username/password too many times and the bloke who runs the site doesn't know how to unblock my ip address.