Road star pilot air jet

The Thunderbirds, the U.S. Air Force air demonstration squadron, are scheduled to perform their precision aerial maneuvers at 70 air shows as the Air Force marks its 60th anniversary. The Thunderbirds will perform in 22 states and nine countries. It will be the first time the team has performed in Europe since 9/11.

The first official USAF air demonstration team was designated the 3600th Air Demonstration Unit and was activated in 1953 at Luke Air Force Base in Phoenix. “Thunderbirds” was soon adopted as the unit name because of the strong Indian culture and folklore of the area. Seven officers and 22 enlisted men were selected for the first demonstration team.

Major Dick Catledge, a training squadron commander at the base, was chosen as the team leader. Twin brothers, Bill and Buck Pattillo, were selected to fly left and right wing positions. Captain Bob Kanaga was selected to fly the difficult position of slot, behind the leader. The spare pilot would be Capt. Bob McCormick, who had demonstration team experience with the “Sabre Dancers.”

2. Midrange (full throttle /5k-7k). Select best needle clip position to get the best power at full throttle / 5k-7k rpm, after you have already selected the best main jet: a. If the engine pulls better on a full throttle roll-on starting at <3k, when cool but soft when at full operating temperature, it is too rich in the midrange and the needle should be lowered.

b.  If the engine pulls better when fully warmed up but still not great between 5k-7k, try raising the needle to richen 5k-7k.

b. Pilot fuel mixture screw settings, float level and pilot jet size also affect high-rpm 0 to 1/8 throttle maneuvers. B.  Too lean, will cause surging problems when the engine is operated at high rpm at small throttle openings! Opening the mixture screws and/or increasing pilot jet size will usually cure the problem. NOTE: A rich problem gets worse as the engine heats up.

Remove carb(s) from your bike. Completely dismantle them to last screw and soak in carb cleaner. Use stiff bristle brush, bottle cleaners, probes etc. to completely remove all dirt and scale from all passages. Clean filters. Blow dry with compressed air. Bead blast if required.

Number one, make sure that your carbs have been checked out for factory settings and that all jets, slides, needles etc are set the same on each carb. Check the settings, do not assume anything .

It is advisable to purchase and install new gasket sets. These are inexpensive and they come with gaskets, new rubber O-rings and washers. If you are restoring an older carburetor also consider a jet metering kit that replaces the needle jet and the needle and a VITON tipped float needle. Later style tickler conversion parts are also available as a kit.