how many cc is a 13 hp
The plug gap for a 5.5 hp Tecumseh is .030 in.
7,2 dl.
CCs do not equate directly to HP, but it would probably be in the range of 20 to 80 CCs.
what is the capacity
From the Tecumseh Jiffy Drill website: Ratio for Tecumseh TVO85 (3 hp), AV520 (3 hp), AV600 (3.5 hp), TMO49 (2 hp), TC200 (1.6 hp) and TC300 (2 hp) engines is 40:1. For a 40:1 mixture: Mix 3.2 oz of 2-cycle oil to 1 gallon of gasoline.
Tecumseh website, "All spark plugs air gap is .030."
about 33 mph
Tecumseh provides dealers with a 0.012" air gap guage, but 0.010 - 0.014" will do.
.030 inch ( on my 24 year old 5.0 horsepower Tecumseh engine )
Rj19lm
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That is the main jet needle valve.