Trailtech Vapor install on WR400
Posted May 16, 2008 - 11:30 PM
Here are the pictures and somewhat of a guide.
I wrap the wires with silicone tape, waterproof, heat resistant, sticks to itself and doesn't make a mess.
Tach wire ran through bike
Small slit in coil wire covering to run tach signal wire through
Tach signal wire soldered onto coil connector
With the rubber boot back on
Tach signal ground, to the frame
Power wiring (DO NOT WIRE TO HEADLIGHT, this will cause the RPMs to not function properly)
Black Connector coming from the CDI box, pull the black and green wires out (press up on small plastic tab inside connector and pull terminal out). Just wrap the red wire for the vapor around the green and the black around the black, then get the terminals back into the plug and make sure they click in place.
Tach and Power connectors
Trailtech Vapor unit mounted with the supplied bar clamp, works OK but I will probably order the $10 bracket that bolts to the front of the triple clamp.
Water temp is not installed because I originally ordered the kit for my DRZ-SM, which comes with a 6mm sensor for the radiator bleed port. I need to get the hose coupling/sensor for the WR.
Speed sensor is installed and was fairly easy to do.
Here's the bike. Plated 99 WR400F. Probably ordering new plastics soon. Just put new tires on.
Posted May 17, 2008 - 08:19 AM
Read this. You have a couple of options that should fix your tach problem. Either re wire the tach signal wires (both) or re ground the one wire from the power supply to the chassis instead of the ground you used in the harness.
Posted May 17, 2008 - 01:49 PM
From this thread:
It makes the power on all the time (when the bike is running) and the RPM problem is fixed, no 18000 rpms all the time etc. I'd say thats the proper way to hook it up.
I took pictures I will put them up in a bit, have to go adjust the pilot air screw or whatever it is on the frontside of the carb. I left it closed on accident.
Posted October 22, 2008 - 07:30 AM
Posted October 22, 2008 - 08:15 AM
Posted October 10, 2011 - 09:57 AM