L 20. What does it mean?

Reggie

Joined

Jul 24, 2006

Messages

1,066

• May 9, 2007

• #1

I'm just curious if anybody might know why the left hand crankcase on my MK3 has L 20 stamped on it on the front edge, above the front isolastic mount and below the barrels?

There is no stamp on the right crankcase.

 

7

79x100

Joined

May 19, 2006

Messages

1,612

• May 9, 2007

• #2

Dunno. Mine has H22 as do others that I've seen. It's not to do with matching the halves because those numbers are stamped low down on the rear.

Presumably a batch number or production date code ? My bike is from April 1975. Any clues there ?

 

L.A.B.

Moderator

VIP MEMBER

Joined

Nov 20, 2004

Messages

20,422

• May 9, 2007

• #3

My Mk III L/H case is also stamped H22, although the cases are factory replacements.

 

J

Jason Curtiss

Joined

Jun 14, 2003

Messages

747

• May 9, 2007

• #4

Both my MKIII engines are marked H20, strange.

 

C

Coco

Joined

Aug 14, 2006

Messages

1,451

• May 10, 2007

• #5

Mine are H 20 as well.