1999 yamaha g16

[lilvampshark]

I just bought a nice 1999 g16e. It runs ok buy has little to no torque. I have two curtis 400amp controllers laying around. Assuming 0-5k what do I have to do to upgrade my controller?

[cgtech]

Better check the controller part numbers to be sure the other controllers are not "ezgo ITS throttle" controllers. If they are "0-5k" controllers, the yamaha 0-5k throttle sensors used in G19 & G22 fit in the same "throttle box" used in the "0-1k" G16, would work easy. The F&R is a weak point on G16, i wrote a thread about using a ezgo f&r to upgrade, or a "ScottyB" reversing contactor setup.

[lilvampshark]

Wow thanks that was incredibly helpful :)

New issue this controller has molex connectors (assuming for optional options) would this cause a problem ? Looks like this.

http://www.buggiesgonewild.com/attac...cy-0b-60_1.jpg

With this connection

http://www.buggiesgonewild.com/attac...nfusion-_1.jpg

It's a curtis 1205x

[cgtech]

That second pic looks like a replacement controller for a ezgo (has ezgo plug). Not a factory Curtis ezgo series controller. Their HD option was a curtis 400a controller, but it didnt have that plug. The era of ezgo that used that plug used the ITS throttle, and is incompatible with both the 0-1k and 0-5k throttles used by yamaha. Hope its not a ITS throttle. Got a pic of that label, or did you get all the numbers from it?

[lilvampshark]

http://www.buggiesgonewild.com/attac...1&d=1458296722
The other controller ends with 4421

[lilvampshark]

http://www.buggiesgonewild.com/attac...1&d=1458301476

[cgtech]

Ok, probably not a ezgo controller, looks like its probably 0-5k. That is a strange controller. I would use keyswitch to power the KSI terminal & the Fwd terminal. Wire the rest up like normal. A2 terminal is not necessary, if its not easy skip it.

[lilvampshark]

You are a life saver! With your help and some tips from buggies unlimited's "speed kit" instructions . Now my problem is that i only get about 25% of speed I think I have a bad pot I got a 0-5k pit from a g22 and my ohm readings go from .06 to 3.45 so it's not reaching 5.00 . Can I fix this my cleaning or what?

[cgtech]

Well, to see if you are getting full speed (or how far off you really are), check the controller input voltage compared to output voltage. Hook test meter leads to B+ & B- at controller, test drive while someone watches meter for lowest & highest voltages. Them move the test leads to B+ & M- , and repeat test as closely as possible.

[lilvampshark]

Will do. Will those ohm readings make a difference? I thought it needed to be around 5k