The early primary chain adjusters didn't have the "nylon shoe" on the adjuster pad...it just had this soft metal pad, permanently attached. The pad wore just a tiny bit(where the chain grooves started to show) and you didn't want to run your chain over tight.. The face of the adjuster was a bit narrower to fit a KR(XLCH type) tin primary cover. The clutch basket was narrower, so the shoe had to be a bit narrower too. I've found those nylon pads aren't always the best since the retainers often come loose, and the nylon shavings from the pad can clog your countershaft needle bearing oiler.
Hartman's mill. I went thru this ripper years ago - and it still runs pretty good. You do your best, try not to skip steps or cut corners...and sometimes you get lucky. He runs 2 carbs on everything - and he's good at it. Tuning, jetting - he makes it work. This bike is insane with details !
Full Moon Cycle in Dubuque, Iowa. I stopped for a quick visit one year on my way to the Meltdown Drags in Byron, Illinois. My chopper was packed ! Still runnin' that old, vintage square air cleaner. PS. I'm not in this photo...I'm better lookin' than these two blokes...
I check the push rods, take a look at the points/condenser...and check the tires and air pressure. I adjusted the chain a touch. A twice around shot of my Amsoil chain lube (I like best).
My mousetrap (clutch) wasn't goin' all the way forward on some operations - so I adjusted that a bit - lubed the springs and all joints with my Lincoln Spray Grease - now everything works all nice and quiet ! No squeaks ! I removed both plugs - and they look exactly the same, you can't tell which cylinder they came from - but I switch 'em anyway each time. Oil level is good in tank and tranny(just about 1/3 way up the throw-out bearing).
These WR engines are rare. The only way to buy one was through a dealer(of coarse) and you had to have a racing license. Class C via AMA, American Motorcycle Association. This is a 1950. Special features (different from standard WL/45" engines include:
Sprocket Shaft (special for ball bearing)
Pinion Shaft w/oil groove (special for ball bearing)
Crank Pin (special size for WR rollers)
Drilled Connecting Rods
Special Lightened Flywheels
Special Cams (for WR only)
Special Ball Bearing Idler Gear and Spacer
Special Gear Cover for Ball Bearings and Wico
Ball bearings on #3 and #4 cams(both ends)
Ball bearings on #1 and #2 cams (case end only)
Special Angled Tappet Blocks
Flat Show Angled Tappets
Special Tappet Covers
Right Case (special casting for magneto idler gear stud)
Left and Right Case with special machining for Ball Bearings
Right Case machined and drilled for Wico/Edison Magneto
Special Cast Iron Cylinders with larger cooling fins, larger valves,