PAMCO Instructions - Honda CB350F CB400F CB500K CB550 CB750

Before Installing:

1. Make sure you have a good running engine to begin with! You don't want to end up chasing your tail trying to troubleshoot a problem that has nothing to do with the ignition.

2.Admittedly, setting the timing is not the easiest procedure. It requires patience and an understanding that the system is precise and requires some trial and error to get right. Once set correctly, however, it will probably never have to be readjusted. That's the beauty of an electronic ignition!
 
3. Make sure your battery is fully charged prior to installation.
 
4. Make sure the main switch is off and the battery positive lead is disconnected and secured, before installing.
 
5. Get a good quality timing light if you don't own one already. If it has an advance preset, set it to zero.

Installation Instructions:

1. Remove the points plate and advance mechanism.

2. Remove the points cam from the advance mechanism. On some models with the advance mechanism, it is necessary to remove the weights as the points cam has a flange on the bottom.

3. Reinstall the weights if removed in step 2.

4. Apply a light coating of grease on the advancer shaft.

Note: On some advancers there is a small pin located on the shaft of the advancer. If you have this pin on your advancer, follow these instructions:

1. Check for the pin and if there grind off with small grinding tool or file. If necessary clean with WD-40 to remove metal particles then apply light oil to prevent rust.

2. Apply a light coating of grease on the advancer shaft.

3. Once the rotor is bolted to advancer check for free movement and spring return.

 
The PAMCO rotor is now installed on the advance mechanism with the PAMCO plate in between. Each advance weight must be extended in order for the slots in the PAMCO rotor to engage the small tabs on the weights.
 

1. Place the rotor on a flat surface.

2. Place the PAMCO plate on  the rotor.

3. Hold the weights in the extended position and insert the tabs on the weights into the slots of the PAMCO rotor.

4. The rotor can engage the tabs on the weights in one of two ways. This is the preferred way.

5. With the trigger magnet positioned as shown above, the green wire from the trigger on the right goes to the coil for cylinders 1 and 4 (blue wire), and the other green wire goes to the coil for cylinders 2 and 3 (yellow wire). If you assemble the rotor with 2-3 in place of 1-4 as shown, then you can either do it again, or just reverse the wires for each cylinder.

6. Install the PAMCO plate and rotor in place of the points plate with the upper mounting screw in the center of its slot, as shown.

 

This next step will require you to remove the gas tank if you are installing the 17-6903 coils, then remove the stock coils and the little sub brackets. Install the 17-6903 coils using the bolts and spacers that come with the kit like this;

 

1. Connect the red wires from both cables of the PAMCO  by extension to the Black / white wire from the kill switch that is connected to each coil. Alternatively, you could connect the red wires to another source of switched battery, such as the rear brake light switch or regulator to avoid having to remove the gas tank.

2. The black wire from both cables of the PAMCO is connected to the frame. 

3. The green wire from one of the cables is connected to the 1 - 4 coil. (blue wire) located in the vicinity of the rear brake light switch connections.

4. The green wire from the other cable is connected to the 2 - 3 coil (yellow wire) located in the vicinity of the rear brake light switch connections.

5. The engine should start at this point. If it does not, turn off the ignition switch and verify which set of cylinders is associated with which color wire per step 4, above.

6. You can rotate the crank with a wrench on the nut that secures the PAMCO rotor to position the timing marks for either 1-4 or 2-3 cylinders. Note the position of the trigger magnet (step 4, above).

7. After you have started the engine, use a timing light connected to cylinder #4 and look in the hole on the top of the plate to see where the timing is.

8. Loosen the mounting screws for the plate and rotate it clockwise to retard the timing or counterclockwise to advance the timing.

9. For the CB750 model, set the timing at the "F" mark at 1000 RPM and then check for max advance at 2500 RPM. Other models please consult your service manual for the correct timing.

10. Secure the mounting screws.

Troubleshooting Tips:

1. Battery too low. The engine turns over, but the low battery means that the ignition is not getting enough voltage to work properly. Needs at least 8 Volts while cranking. Charge battery and try again.

2. Use a timing light to set the timing dynamically. Only the CB750 system can be statically timed, but even then we recommend that a timing light be used for the final adjustment. All the other E-Advancer systems cannot be statically timed and a timing light must be used. Timing lights with an advance preset should be set to zero advance. The system is set at the factory to allow the engine to start to facilitate using a timing light.

3. One or both cylinders not firing. This can be as simple as a fouled spark plug that resulted from multiple start / stops during the timing process.

4. Intermittent spark. Is the engine is running OK or is it missing. If if isn't missing, then the problem could be your timing light. Make sure to use a high quality timing light.

5. Spark plug caps are non-resistor type. The PAMCO requires that the spark plug caps are 5K resistor caps. We have them available here.

6. After installing the new ignition, it's important to check the timing again after riding a few hundred miles. Then you should be good to go for a very long time!

7. Still haven't figured out the issue, please refer to the forums or contact help@cbignition.com

Technical Information:

Technology: Hall effect sensor, IGBT coil driver
Dwell: Fixed, 120 degrees
Coil primary resistance: 2.5 to 4.5 Ohms, dual output. (Stock coils may be re-used)
Operating voltage: 6 to 18 VDC
Operating current: 13 ma
Operating Temperature: -40 to +150C (-40 to 302F)
Spark Advance: Standard, centrifugal
Simple installation: Battery, ground and coils. No external box of tricks.
Plate milled from high quality aluminum.
Rotor with two magnets made from a solid billet of aluminum on a CNC machine.