It could be that your CDI has failed. or is blown/broken whatever you'd want to call it. Either that or your coil. Or Worst comes to worst, Your Magneto is bad.
OR check your battery might be no good ,solinoid might be bad ,wire might be broken, wires might be lose or dirty or last but not least the starter might be junk or need rebuild.
10W-40
60 Hp
3 liters.
yes you can
10w-40 specifically for motorcycles.
www.bikebandit.com http://www.bikebandit.com/houseofmotorcycles/honda-motorcycle-cb650sc-nighthawk-650-1985/o/m9659
i'd say .0035" just a guess tho
One Two, One Two, One Two, at least in the 450 Nighhawk!
185cc or 2.26 fl oz As per clymer manual.
12.75 .oz #10 fork oil 6psi pressure
Nighthawk Records was created in 1976.
Nacunda Nighthawk was created in 1817.