Accel rev limiter

[Hey guys,
Haven't been on in a while. Workin to much!! Like 50+ hrs a week and have not had time to work on the bike until recently.
But I do have a problem, I bought an Accel rev limiter from a member on here(brand new)and I'mm havin trouble with the wiring.
According to the diagram,it does not matter what side to hook the leads to the Accel coils. They are not +or- specific. Nor can I figure out the which wire to hook up the signal lead to the ignition. By the way it is still the stock ignition execept for the Accel coils and wires. It was that way when I bought it. Lets see if I can load the wiring diagram.
Please,any kind of help would be great and thanks in advance.
My bike is a 1980 Kz1000G,if that helps. All of the maods were done to it when I bought it.




Thanks,
Mike

That diagram is tiny, and very difficult to read.

But to me it looks like the rev limiter only goes to the negative side of the coils. The positive side of the coils stays connected to the 12v from the ignition switch.

That would make sense since the rev limiter will limit by either delaying, or preventing the spark entirely. To do that, it needs to control the negative side of the coils since that is the side the igniter controls as well.

Also, it looks like the rev limiter has a wire going to the pickup coil. That seems unnecessary since it can detect RPM based on the igniter's wire to the coils.

But I can't be sure without a better diagram.

Ok ,then i 'll see if I load better pic.


I don't what happened,but I can't reload the pic. Sorry.

Thanks Patton. I guess the computer doesn't want to work tonight.

If the rev limiter was specifically designed for the KZ it should work. That wire going to the pickup must have a very high impedance input or it will alter the timing. It should be connected to the blue pickup wire or the black pickup wire. (The instructions say to try one then the other if it doesn't work.)

The rev limiter connects to the negative side of each ignition coil to limit the RPMs. The rev limiter gets power from the same place the igition coils get power.

Thanks Patton. I hope i get this photo thing figured out soon.

Here's one method:



Good Fortune!

Accel says the coils are + or - specific. I have red,green and black from the ignitor to the coils. Pink and red to the ballast resitor. Pink from the resistor to both coils. green is connected to coil 2&3and black is connected to coil 1&4. red is connected straight to the resitor from the ignitor. Correct me if I am wrong,so this makes pink + and green and black -?
If this is confusing I am sorry. Wiring is not my specialty,but I am learning.

If you are using the 3-ohm Accel coils, you don't need the ballast resistor. It may be hurting performance. If it is, it would show up as a sputter or misfires at higher RPMs or with larger throttle openings, or a combination of both.

If you don't feel it is hurting anything, then it won't do any damage to the ignition to leave the resistor in there.

The rev limiter needs power. The power wire for the rev limiter is the one marked "+12" on the diagram. That 12v power comes from the red wire you mentioned. That wire feeds 12v power to the igniter, and the ballast resistor which feeds power to the spark coils through the pink wire. Now it will also feed 12v power to the rev limiter.

The black and green wires to the coils are the ground wires for the coils. On the rev limiter, they are marked "output". The igniter turns the coils on and off through the green wire and black wire. The rev limiter will also now do the same thing. When the RPMs are too high, the rev limiter will override the igniter's control of the coils. That is why the rev limiter needs to be connected to the green and black wires on the coil.

The rev limiter also needs a way to tell how fast the engine is turning. It does this by the one wire going to the pickup. That wire is marked "input" on the diagram. The pickup has two skinny wires connected at the igniter: the skinny blue wire and the skinny black wire. The rev limiter must connect to one of those (likely the black one). If it doesn't work while connected to the skinny black wire, try the skinny blue wire instead.

The remaining wire on the rev limiter is ground.

Thanks loudhvx and patton, I appreciate the info and help. I'm goin to hook it up this coming weekend. It freakin snowed here the last 2 days so it was cold in the garage!!! Supposed to be in the mid 60's Sat and Sun.
I don't have any sputters of misfires at all,unless its not totally warmed up. The part # is 140403. I looked on Accel website and its just a generic desciption. Nothing to say 1 or 3 ohm. The bike is hard to start off the starter though. This has been a problem for awhile now. I have checked everything and its even worse when I ride and then stop for a break and then try to restart with no success. Not even kick starting. But I have noticed,that the fuel filter is empty,after sitting for about 15mins is empty. Float level off? Ill start another thread in carb section for this.

Again thanks for the help!!!

Thanks for all of the help on this issue. I wired it up this past weekend and HOORAY!!!!! the thing worked. I have it set to come on at 9150 for now until I get a new tach. It spin past 6,000. Im goin to keep the gauges to get rebuilt and just go wiht an autometer tach for now. Again thanks for the help. IT is greatly appreciated.

Mike