1986-1987 Honda Fortrax TRX70 Service Manual, Page 40Get this manual
FUEL SYSTEM
PILOT SCREW ADJUSTMENT
CAUTION
Damage 10 the pilot screw seat will occur if the pilot screw is
tightened againsllhe seatTurn the pilot screw clockwise until it seats lightly and back it out-38 turns IAfter86:- 18 turn s)
This is an initial setting prior to the final pilot screw adjustment Warm the engine up to operating temperature Stop the engine and connect tachom eter
Start the engine and adjust the idle speed with the throttle
stop screwIDLE SPEED: 1.700 100 rpm
Turn the pilot screw in slowly until the engine stops, and then
back it out turnStart the engine and readjust the idle speed
with the throttle stop screif necessary
HIGH AlTITUDE ADJUSTMENT
The carbu retor must be adjusted for high altitude riding labove
5,000 ttl 1,500 mL
SPECIFICATIONS
Below bove