Z1OwnersClub GB

Having put a Wisco 1075 kit on , hopefully will get an MOT next week, what do people reckon for running in?

Take it easy for first 1000 miles? Give it some stick so as not to glaze the bores?
Opinions please

Up to 4000 RPM for the first 500 miles.

Then up a 1000 RPM every 100 miles.

No motorway use - i.e. go up and down the gear box.

When running in my 2 strokes I read that you should wind open the throttle without increasing the revs substantially.

What this does is to load the rings sufficiently to bear on the bores without building up heat then by backing off you release the pressure and any heat that the rings and piston may sustain.

Lots of different riding I think is the key. Don`t go along at a light load at constant revs as variation is the key.

It`s not bad to rev the bike but don`t load it for too long.

Mineral Oil, No synthetic or semi synthetic till it's run in.

after buying a new bike and running in by "the book" for the first 300 miles, i wouldn`t do it again.

zeroed wrote:after buying a new bike and running in by "the book" for the first 300 miles, i wouldn`t do it again.

I bought a new VFR a few years ago and bollox to the breaking it in i just went for it never had a problem with it!!

I normally keep under 5,000 rpm for the first 50ish miles and avoid loading the engine in higher gears. Enough to bed the rings in and listen for any unhealthy noises. Then try and avoid full throttle for the first 100 or so miles, then check torque settings on the head. After that I just ride as normal, I have rebuilt quite a few engines over the years and never had a problem (well not with pistons and rings anyway)

Also, with and older style engine, I would recommend sticking with a good mineral oil. Older style clutch's don't seem to like the anti-friction properties of synthetic or semi-synthetic oil, you might get clutch slip with all those extra horses !

Thanks for the replies, its got good old fashioned Castrol GTX in it.

Will do as suggested, and go easty for the first feww hundred miles.

Went to ssee the Dyno guy and he says leave it at least 1000 miles before taking it there for the full set up.

Be very carefull with the running in process (see http://www.z1ownersclub.co.uk/forum/vie ... php?t=8850).
I went to Debbens last weekend to see what their opinion was on the damage to the bores and ring/pistons and they reckon that the amount of wear sustained to the rings and bores was inherent of 5000 miles. The engine has only done 540 miles since it's rebuild with Wiseco 1075!!!!! Admitted there was a problem with the ignition that has caused detonation but the first 500 miles were good and were run in very steady. It was not untill I opened her up that the problems started.
Hopefully your have better luck than me!