Closer to the engine compartment,
the list of CV4 parts grows. High-temp, blue silicone radiator hoses are
employed, as well as a Fuel Kool gas-tank heat cover and fuel-line heat
sleeve. The builder also added some
more blue color when he replaced all
of the carburetor vent tubes. Keeping
heat out of the engine is one of the
best ways to conserve the horsepower you are trying to gain with modifications. To keep an eye on the temperature, small CV4 temp strips ($14
per pack) are strategically placed on
the cylinder and a $475 extra-capaci-ty Fluidyne radiator. They also keep a
close eye on engine run-time with a
small, $40 CV4 hour meter.
Inside the motor is where the
magic happens. CV Products offers a
transmission service that will benefit
any sport quad engine. It’s called an
ISF Finish, and it basically smooths
out any rough edges on your trans-
mission gears or shift shafts. It’s a $300
investment when you send in your
gear set, and it will dramatically
improve shifts and reduce false neu-
trals. We have tried it in several
quads and are always impressed.
Next to that happy Honda transmis-
sion, a new +3mm stroker Hot Rods
crankshaft was installed. For less than
$460, it comes complete with a new
connecting rod and all lower-end bear-
ings and seals. To come up with the full
500cc of this build, a 12.5:1, 99mm CP-
brand piston was installed for $225.
Further up on this engine, CV
Products uses more in-house pieces.
The head gets equipped with
Xceldyne titanium valves (four at
$148 each), valve-seats ($100 total)
springs, guides, locators and retain-
ers for an additional $500.
CV Products also developed their
own CV4 foam air filter ($52) to use on
this project, while the exhaust side
A woods-racing quad needs to work well on the track too. An engine full of torque
can get you around wide MX berms or in between the trees.
A complete rebuild of this Honda was under $3000. That included transmission
massaging and a 500cc stroker kit.
Traction for both rider and machine is important. The huge Pro Armor pegs give
stability to the rider, while DWT puts the power to the ground.
CV Products Gator Guard not only protects the chain and sprocket from damage, it has teeth on it to help drive over