Trailtech Vapor install on WR400

Installed my Trailtech Vapor today, figured I would post up a few pics. I am not sure if the power wiring is good or not, when I turn the power on the RPMs freak out. Going to call Trailtech and see what they think, the bike is all stock (doesn't have an upgraded stator or capacitor or battery).

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.

IMG_1585.jpg

Tach wire ran through bike

IMG_1584.jpg

Small slit in coil wire covering to run tach signal wire through

IMG_1586.jpg

Tach signal wire soldered onto coil connector

IMG_1591.jpg

With the rubber boot back on

IMG_1592.jpg

Tach signal ground, to the frame

IMG_1593.jpg

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.

IMG_1631.jpg

Tach and Power connectors

IMG_1600.jpg

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.

IMG_1606.jpg

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.

IMG_1608.jpg

:thumbsup:

Nice work and thanks...

Jamie

http://www.thumpertalk.com/forum/showthread.php?t=560023

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.

Changed the power wiring to this:

2003-2007-YZ.jpg

From this thread:

http://www.thumpertalk.com/forum/showthread.php?t=471735

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.

updated first post with the proper way to wire the power for the vapor

Hi thanks for the post. Ive just installed a trailtech vapor on my 2000 wr400. I'm looking for the proper high temp and danger temp degrees so I can set the computer to warn me. Also looking for the oil change and tune up distances. I would appreciate any help. Thanks

I set mine @ 200 warning and 240 for oh crap! seems to work well on my 02.

I installed a Trailtech Vapor on a 1998 WR400F as per these instructions and I am getting around 4x the RPM with the tach setting at 1 and 2x at setting 2. Any ideas on what I did wrong?

Where are you going to splice into your coolant hoses for the temperture sensor? So my real question is.....where is the cooant the hottest, coming out of the engine so the sensor picks up the hottest and most accurate reading? Nature tells me common sence would apply but i always like to ask just to be sure.

Changed the power wiring to this:

2003-2007-YZ.jpg

From this thread:

http://www.thumpertalk.com/forum/showthread.php?t=471735

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.

  Attaching to the coil on mine caused high/erratic readings.  I ended up wrapping my tach wire around the spark plug wire and works fine. WR426.

Installed my Trailtech Vapor today, figured I would post up a few pics. I am not sure if the power wiring is good or not, when I turn the power on the RPMs freak out. Going to call Trailtech and see what they think, the bike is all stock (doesn't have an upgraded stator or capacitor or battery).

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.

:thumbsup:

 

 

Let us know in about a year how that Trail Tech Vapor is doing.  My bet it will be broken due to cheap made in China materials. 

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