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  Models BO & BR
Point Gap .015
Plug Gap .030
Timing Mark On Flywheel
Spark Occurs  
Firing Order 1-2
Intake Valve Clearance .020 Hot
Exhaust Valve Clearance .020 Hot
Comments Spark occurs when dot or "LH-Impluse" aligns with index on cover or case.

Shipping weight:

 

 

 

 

 

 

 

Serial Numbers
1936 325000 1937 326655 1938 328111
1939 329000 1940 330633 1941 332039
1942 332427 1943 332780 1944 333156
1945 334219 1946 335641 1947 116746
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