Motorcycle Repair: spark timing on the front cylinder, honda vt1100, compression stroke

Question
1985 Honda VT1100, motor will run (full choke) but front cylinder never heats up.  Checking spark with plug out and grounded, the spark is not in time with TDC on compression stroke. It is there, but comes and goes and is never on the right time.  I have exhausted all ideas, and have double checked coil wiring, secondary lead condition and resistance. I have replaced both spark modules (with used e-bay parts) no change.  I've checked valve timing by making sure cylinder is sealed (air psi) at TDC with timing marks lined up. Can you give me some advice?

Answer
Nice bike...a 69 CB 160 was my first bike.  

The cam chain is adjusted easiest when cold but it really doesn't matter.  Taking the tank off just gives you more room.  If you've really small hands of if you can get your wife or girlfriend to do it...that would be better ;o).  You might be able to prop up the back of the tank and get the room you need.  Just be warned...sometimes I've busted the balance fuel hose just propping up the tank.   

It doesn't matter which valve is adjusted first. Sounds like you've got it well in hand.

Regards
Rich