Tech Procedure - Honda GX160 Tech Manual

L. Exhaust oxygen sensor or temp. sensor attached to any part of Honda exhaust system is illegal.
M. Valve seals are illegal. (Event DQ only NO suspension.)
N. Cryogenics of any Honda part is illegal.
O. Note: Taking parts out of service reference to "Wear Limits" in Engine Block Internal section.
P. DQ Only – Not suspension for: Exhaust, Air Filter Adapter, Spark Plug or valve seal, silicone or any type of sealer
or epoxy in unapproved areas (approved areas are choke shaft hole and governor shaft hole) or more than one exhaust gasket.
Q. Shroud must be factory RED or BLACK.

TECH PROCEDURE

Modifications or machining of any parts in order to bring them to stated minimum or maximum specs
(blueprinting) is not legal.
External visual check of engine for required components: muffler, shrouds and sheet metal, oil level sensor
(this can be partially observed from outside).
NOTES:
A. Factory air cleaner must be removed. Any air filter may be attached to the outside of air filter
adapter. Outerwear style or equivalent can be used over carburetor only with no adapter. The
approved air filter adapter may be run with or without an air filter. Any air filter may be used with
adapter as long as there are no devices inside the air filter or adapter. (I.E. Springs not allowed)
Hose from valve cover must go into a catch can. (We are using "outerwear" to define a style not
brand name).
1 . The use of air filters during qualifying at asphalt and dirt events is illegal. The Senior
Tech. Official reserves the right to allow filters at any event that it's deemed necessary.
Senior Tech. Official reserves the right to allow filters at any event that it's deemed
necessary.
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