Yamaha YFM350 Warrior Instruction Supplement

For 1987-later

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INSTRUCTION SUPPLEMENT FOR 1987-

LATER YAMAHA YFM350 WARRIOR

Removing stock carburetor and cables.

1. Remove seat and gas tank. Make sure fuel

petcock is in "off" position.

2. Remove throttle cable paying close attention

to routing, as the new cable(s) will need too

be routed the same.

3. Remove stock carburetor and stock throttle

housing.

Preparing motor for carburetor install

1. Remove stock manifold from cylinder head.

2. Place supplied o'ring into aluminum flange

as pictured in figure 1.

Figure 1.

3. Install aluminum and rubber flange to motor

using supplied bolts. See Figure 2. The

shorter 25mm bolt will need to be placed in

the bottom hole. IMPORTANT NOTE: Install

the aluminum flange with the o'ring towards

the motor and the thick side up.

Figure 2.

Twist Throttle Instructions

1. Install the throttle cables into the supplied

throttle housing and place onto clean

handlebar end.

2. Route throttle cables through frame as stock

cable was routed.

3. Install the pull cable (long shoulder on cable)

into the 4:00 position and the return cable

end into the 1:00 position of the cable

wheel. Secure cables to cable bracket by

replacing end piece and Phillips screw. See

figure 3.

Figure 3.

Thumb Throttle Instructions

Page 1 INSTRUCTION SUPPLEMENT FOR 1987- LATER YAMAHA YFM350 WARRIOR Removing stock carburetor and cables. 1. Remove seat and gas tank. Make sure fuel petcock is in “off” position. 2. Remove throttle cable paying close attention to routing, as the new cable(s) will need too be routed the same.
Page 2 NOTE: Modification of the stock thumb throttle housing will be required in order to achieve wide open throttle. Figures 4 and 5 will show the mods. Figure 4. Mod number one is to remove material on the outside throttle stop that limits the thumb lever travel.
Page 3 6. Adjust throttle cable to take up the slack. Note: When throttle cables are properly adjusted, there should be approx. 1/8” of free play in the throttle. 7. After throttle cables have been adjusted the handle bars should be rotated from full right stop to full left stop while opening and closing throttle to ensure smooth operation.