39-416 CV40 Master kit. Patent No. 5,223,180. Fits all Keihin Carburetors 1988-Later Sportsters® & Buell, 1990-later Big Twins, 1999-later Twin Cams®. SOLD AS KIT
Each kit comes complete with the emulsion tube, Yost power tube
(press fitted into the emulsion tube), Blue and Red needles, spring, 1/8
drill bit, 7/64 drill bit, 165, 175, 185 & 195 main jets, and washers.
WHAT WILL THE POWER TUBE DO?
l Gives the customer the best bang for his dollar
l Machined from solid brass and completely U.S.A. MADE.
l Atomizes the fuel, creating a much more efficient and cleaner
burning fuel mixture
l Specifically designed to synchronize the engine demand
with the air and fuel requirements.
l Provides an almost unbelievably smooth transition and throttle
response (almost eliminates any flat spot).
l Very easy to install (approximately 1 hour). Complete
instructions included.
Each kit comes complete with the emulsion tube, Yost power tube
(press fitted into the emulsion tube), Blue and Red needles, spring, 1/8
drill bit, 7/64 drill bit, 165, 175, 185 & 195 main jets, and washers.
WHAT WILL THE POWER TUBE DO?
l Gives the customer the best bang for his dollar
l Machined from solid brass and completely U.S.A. MADE.
l Atomizes the fuel, creating a much more efficient and cleaner
burning fuel mixture
l Specifically designed to synchronize the engine demand
with the air and fuel requirements.
l Provides an almost unbelievably smooth transition and throttle
response (almost eliminates any flat spot).
l Very easy to install (approximately 1 hour). Complete
instructions included.