Set it up with Champion plugs they are a lot more forgiving to engines running rich than ngk, I've had ngks only last on starting once then had to replace them from memory it' n6yc or n7yc but you would need to check
Post #16?
.........maybe not as long ago as me lol(1982 Oxford) back then we got generous Government grants in the UK I even received an additional 'Mature student' grantThanks guys. A compression test had actually crossed my mind as well. The engine had been rebuild by Howard Smedley (before I bougjt it) and not run, so I was assuming it to be fine. But when it did fire on both cylinders yesterday there was a difference between pressures from either exhaust pipe. But this could also be because of the exhaust leak of course.uk
To answer Peanuts question: I got an Architectural Engineering degree at the Technical University of Eindhoven and then was lucky enough to receive a full scholarship to a Masters of Architecture at the Architectural Association in London. But that was a long time ago! Haha
I don't see why you cannot do both checks ?
The exhaust has no bearing on setting the timing as you do the test with the engine not running .With a compression test you are measuring the seal of the combustion chamber .ie the head gasket, the valves and their seats ,rings,piston , head and cylinders. The exhaust or inlets for that matter have no bearing on that check
If you need to check the dynamic timing with a timing light , I'm pretty sure you can do that without the engine running using a
drill/socket adaptor . With the plugs out you should be able to spin the engine at sufficient speed. We do this with 2 strokes so I see no reason why it shouldn't work but I have not tried it with a xs650
Are you going to do the Distinquished Gentlemens Ride this year ? it would make a good target date
ahhh so you've more than the one steed .....a stable perhaps
I missed last year too so I am all the more determined to do it this year . Nearest for me is Bristol or Exeter some 50 miles distant so the old gal is going to have to be reliable .