mods & tweaks, reviews & musings about motorcycles, parts, & accessories

Tuesday, March 2, 2010

exup removal, resistor mod, ais removal & plate


I got a new pipe a couple of weeks ago, took off the exup servo motor but hadn't gotten around to removing the ais. The exup comes off with the exhaust. You can take off the exup motor & cable stuff then, but it will generate a check engine light (CEL).

But i hadn't gotten around to doing the resistor mod, since i couldn't find a 7.5k resistor in my junk box. But after my ride up past flagstaff this week, i stopped by radio shack. They didn't have any 7.5's, but they had 10's, so i bought the 5 pack for .99. Either 7.5k or 10k ohm, 1/4 watt resistors will work. While i was there, i picked up the radio shack 12v siren.

The exup removal is simple.. take everything off. Pull out the cables, take the motor off & unplug everything. The only problem is the CEL comes on when you do this. As has been described in much better detail on all the forums relating to the wr, i put a resistor between the white/red & black/red wires on the exup plug. I folded the resistor wires in half so they would stick in the plug holes better.



Before i plugged in the resistor, i plugged the exup back in, & turned on the key to clear the CEL. Then after turning the key off, i plugged the resistor in, then started it up to verify it worked, taped it up & stuffed it beside the battery compartment out of the way.

Now the CEL does not come on. The resistor fools the monitoring system & it thinks the exup system is ok. 

Then i took off all the ais stuff.. I made a plate out of a piece of 3/16" aluminum i had around, drilled the holes for the bolts & put it over the ais hole by the exhaust outlet.. with the stock gasket. I unplugged all the related wires, tubing, etc, & put a rubber cap over the hole left in the air box. I used the tip from a bungee cord.  Nothing else to it. The ais removal does not generate a CEL.


With an aftermarket exhaust, neither the exup or ais are necessary, so might as well take them off. These mods are easy.. no reason not to do them.

1 comment:

  1. Nice explanation, I removed my Exup but didn't do the resistor mod yet. AIS next up. Know anything about using a Power Commander?

    ReplyDelete

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Semi-retired home builder. Musician. Former adventure rider. Philosopher. Innovator. Tech freak, genealogist, golfer. Cosmic Watcher.