Spitler II) E&O F600 motorcycle engines
#34774 from John (Tyler · Rule change · TB 23-09 (2023-09 Fastrack)
In F600, GCR section 9.1.1.D.15, change as follows:
"A. Mass produced water-cooled, 4-cylinder, 4-cycle motorcycle engines up to 600cc are allowed as per spec line (end of
section). Engines may not be modified and no engine components may be added or removed unless specifically authorized by
these rules."
"C. All engine internals and compression ratio must remain stock. The competitor must present, on demand, an original factory
manual for the engine to allow compliance verification. There shall be no modifications or removal of any component of theengine or addition of any component of the engine unless specifically authorized in these rules."
"F. Carburetion or fuel injection may be used. Fuel injection, if used, and must be stock and unmodified for the model and year
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of the engine that is used, with no modifications to the intake system. The use of any carburetor jets or needles is
permitted. Stock air filters and air boxes may be removed, and air filters and air boxes are unrestricted."