Edelbrock Automobile Parts YZ WR400 User Manual

7. Install pull cable (see Figure 1) end into  
the 8:00 position of the cable wheel  
and the return cable into the 11:00  
position. Secure cables into cable  
bracket by replacing end piece and  
phillips screw. See figure 2.  
INSTRUCTION SUPPLEMENT FOR  
1998-LATER YAMAHA  
YZ/WR400/426/450F  
Removing stock carburetor and cables  
Figure 1.  
1. Remove seat and gas tank. Make  
sure fuel petcock is in “off”  
position.  
2. Remove throttle cables paying  
close attention to routing, as the  
new cables will need too be routed  
the same.  
3. Remove stock carburetor and stock  
throttle cables.  
Pull Cable  
4. Unplug TPS (throttle position  
sensor) and tape end off coming  
from bike.  
Figure 2.  
5. Remove hot start button and hose  
(for externally mounted hot starts  
only).  
6. Stuff a dry, clean rag into the  
intake manifold to keep debris from  
entering engine.  
NOTE: It may be easier to remove sub-  
frame prior to installation.  
SPECIAL NOTE: The Edelbrock  
Carburetor was designed to be used  
without TPS (throttle position sensor).  
We recommend the plug be taped off to  
keep debris and water from entering.  
With the TPS disconnected there is no  
damage that can occur to ignition  
system.  
Installing the Edelbrock Carburetor and  
Throttle Cables  
1. Install the provided throttle cables into  
OEM throttle housing and place back  
onto clean handle bar.  
2. Remove the rubber carburetor  
alignment tabs from the manifold using  
a razor blade or sharp cutters. This  
should be done with the rag left in the  
manifold. Be very careful not to  
damage the manifold or your hands  
while doing this!!  
3. Remove the hex pipe plug from the  
carb cap using a 11mm or 7/16 wrench.  
Do not discard plug, as it will be  
needed later. Install the metering  
adjustment tool included in the  
8. Place provided vinyl cap over brass  
barb on cylinder and secure with small  
tie-wrap. See figure 3.  
Figure 3.  
hardware kit. Do not over-tighten as  
damage may occur to cap.  
4. Install provided fuel line onto fuel inlet  
banjo and secure with pinch clamp.  
5. Place Edelbrock carburetor into  
manifold. Do not tighten clamp yet.  
6. Remove the cable bracket end from  
cable bracket using #2 phillips.  
9. Insert aluminum plug into airboot where  
hot start button was located. See  
figure 4. Secure with oem pinch clamp.  
 

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