Hey Guys, been procrastinating (spelling..?) about study so I have dragged Bluefly's stolen and recovered 7r out and got it running.
The theiving bastards have basically flogged the ring out of the bike. The oil was low, and what was there was like crud. I've changed all the fluids, new filter, cleaned air filter, cleaned and re-gapped the plugs. It starts up a treat.
Having had a few of these engines over the years and i have to say this is particulary noisey in the top end. Initially i just thought the timing chain needed doing, no biggy, but on closer inspection with the tank and air box off the noise is definately comming from the left side of the head. I've never had top-end trouble with one of these before. Alegedly when the dead shit(literally) crashed the bike, it lay on it's side running for a bit? Funny since every time I've laid my other 7r down it cuts out almost instanly. Any ideas? My thoughts include timing chain, shims/buckets, stetched or bent valve, broken valve spring, even cam bearing?
I will look at pulling it down in the next little while, but does anybody know inherrent problems with these? Would be nice to know what i might find.
cheers