BS34s and white plugs

[jpdevol]

Just gassed up madness, high compression 750 cammed, she's getting a bit tired, VM34 carbs, fairly high gearing, riding curvy state highways. Couple of hammer down runs to 75MPH or so, (testing purposes only)
112 miles 2.2 gallons, yup 50MPG.

Only 14gal to Mountain View then

 

[tommytwohands]

With jetting down the pilot air circuit and going up on the main jets…back from a sunny 1200 mile round trip to the beach with exactly 42 mpg

 

[5twins]

Did the jet changes yield any more color on your plugs?

 

[tommytwohands]

Did the jet changes yield any more color on your plugs?

Perhaps a very slight shade of tan while holding one up to the light. The threads of the plug showed some dark brown/black

 

[tommytwohands]

Dead cylinder method yielded roughly 2.5 turns out for each cylinder