I have been offered a 1971 commando that has been stood for many years and would like to know about engine problems,( main bearings)and anything else to look for,my previous commando was a late 850 and after many years I am in the market for a bike but I will keep looking if this year bike is a problem.any advice ? Thanks
Pass the details on if you decide against it.
… or you would have all the fun of sorting out the incredibly misconceived engine breather.
Personally I have never understood what was supposed to be wrong with the timed breather on the end of the camshaft, as fitted to early models like the one you are contemplating.
The year/engine number changes can usually be traced using either the factory Service Releases or the NOC Commando Service Notes.
Assuming of course that the engine has not been modified from standard. 'Better' parts may have also been retrofitted.
I'll send you an email message with some links.
Bought my 71 fastback 10 years ago only had minor problems that you would expect with an old bike. Love It
I collected it yesterday,not run since 1984
Thanks I have the bike now so I guess I will be trawling through the archives.
When you looked at the bike (you did look at it, right?) did you at least try to kick it over to ensure that the piston rings were not rusted into the bores?
Hopefully the current owner laid the bike up properly.
Bike has been off the road for years,the last tax disc shows 1984,,found lying in a garden with lots of other bikes.original owner passed away.
Nice looking bike Patrick, you will have fun sorting it out, are you going to do it up to ride or do a full restoration?
Interpol tank, odd seat, Yamaha indicators, missing carburettors and twist-grip, Dunstall-style silencers, unusual exhaust retaining nuts(?), after-market headlamp brackets. If it hasn't turned a wheel for 20+ years I think you'll need to strip it right down and check *everything*. Still, what else were you going to do for the next three months?
What’s not to like? It’s an old bike, not pretending to be anything other than “old and used”. It’s going to make an ideal rebuild resto project without the worry that it needs to be “original”. Go for it and enjoy.
What were the "lots of other bikes"?
I will try to get it running,if I can then probably will use it
Long range tank,I have all the bits,,,headlamp ears, indicators are wrong, carbs are Amal mk2 ,I have a article from 1978 showing the exhaust nut bodge,engine turns over,electronic ignition fitted,Andover head steady, Isolastics still look new, plenty of stainless bolts ,oil cooler,breather,,plenty of oil in it..I think I am just going to change oils new keys,battery,carb rubbers and give it a try.ive had a camera down looking at the pistons and bores.
Lots of 80s jap bikes.
After a few days looking at the bike and wiping down the years of crud I have drained all the oils and replaced with fresh oil,new battery,new carb rubbers,and had a ignition key made ,I have cleaned the tank and plugs, it started 2 nd kick,,,ime very pleased.
Yours is very good news indeed!