Heavy Twins

Hi, y'all...

I am having trouble fitting my sealed beam unit and chrome rim back into the headlamp shell. I have removed the paint from the part of the shell that the chrome rim fits onto and it just seems to be such a tight fit.

Hi guy's. 
I'm wanting to fit a rev counter to my 500 dominator. I've acquired a cover off a 650 along with the drive nut

Second question on 750 Atlas/N16CS engine (there's bound to be more)
Camshaft from engine is excellent and marked HC 7014 and all I can find on internet is vague reference to it being "drag profile"
Can anyone identify it ?

I am striping a 750 Atlas engine (actually from N15CS) and everything is in excellent condition which make me think it has been rebuilt. However looking at the crank flywheel nuts and bolts something looks odd.

Could anyone with a plunger framed Model 7 (or ES2) post a detail photo of the solo Lycett saddle nose?  I have a "replica" Lycett saddle of Asian origin, and need to fabricate the forward pivot mount to the frame, but I don't have dimensions or a

What is the difference between slim line and wide line frames. What apart from length are the differences between long and short roadhouse forks and what models used the different frames and forks. 
Bill Wood. 

I am building a 1950 model 7 from a "basket case".  I know they were spec'ed at 6.7:1 compression ratio for the poor quality post war fuel available back then.  My question is what compression ratio is suitable for modern American non-ethanol 91 o

My 650ss bitsa bike and I have been on a bit of a journey since I picked her up in January. OK It hadn't run for 40 years beforehand but I had hoped for some sort of progress. 

After the battery went flat again (had been more than  a month since this happened before), I decided to overhaul the connections in the charging system as a first step.