Pulse Generator

[Peteg]

Is the pulse generator on the right side or the left?
Are the pulse generator wires the wires referred to in the valve service procedure as be careful not to pinch when you reinstall the covers?

[Hook#3287]

The Ignition Pulse Generators (2) are located behind the Timing Belt Cover (large) to the left of the Main Crank Pully.

Their wires go through a Grommet inset in the Engine Case and up under the right hand side steering area cover.

To adjust the Valves, you do not need to remove the Timing Belt Cover (large), just the Timing Belt Cover (small, 3 bolts exposing the crank pulley)

I don't believe there are any wires to be concerned about related to the Valve Covers.

[Chrisj CMA]

There are a couple wires that run near the forward edge of the right side valve cover. One goes to the oil pressure sensor. I always disconnect these to get them out of the way when doing the valves

[Peteg]

Thanks Chris, that makes it perfectly clear. Somewhere I read about a potential issue with the wires on the right side but now that I'm getting ready to check the valves I couldn't find the reference. I'll see everything when I do the valve clearance check as I also want to pull the large front cover. The last time I pulled the front cover to check the timing belts the left belt tensioner was loose so I want to check the belts again to make sure I never jump any teeth.

[Hook#3287]

http://www.valkyrieriders.com/shoptalk/carlvalve.htm

#22 in Carl's maintenance page.

Those wires run along the front as stated, but I've never had any issues with them getting in the way. If they were pinched somehow, pretty sure the cover would not seat correctly.

I believe they are not mentioned in the OEM service manual.

[Fabio]

On the subject of pulse generators.
I’m in the UK and purchased a 1998 Valkyrie from a dealer unseen. From the moment it arrived it never ran properly despite the dealer claiming they had serviced it.  Normal problems of rough running and backfiring. Determined to fix it I tried everything you could imagine, including servicing the carbs with no luck.
Had disconnected the pulse generators at front of the fuel tank to check the resistance, all good. For some reason, clutching at straws, I decided to put a connector in the loom to swap the pulse generators round. All I expected was a huge backfire but it fired up instantly and ran perfectly, problem solved. I have no idea how it could run with them the wrong way round, a Honda mystery.
Just hope this could help someone with the same problem.

[98valk]

On the subject of pulse generators.
I’m in the UK and purchased a 1998 Valkyrie from a dealer unseen. From the moment it arrived it never ran properly despite the dealer claiming they had serviced it.  Normal problems of rough running and backfiring. Determined to fix it I tried everything you could imagine, including servicing the carbs with no luck.
Had disconnected the pulse generators at front of the fuel tank to check the resistance, all good. For some reason, clutching at straws, I decided to put a connector in the loom to swap the pulse generators round. All I expected was a huge backfire but it fired up instantly and ran perfectly, problem solved. I have no idea how it could run with them the wrong way round, a Honda mystery.
Just hope this could help someone with the same problem.

its a wasted Spark ignition system.    https://en.wikipedia.org/wiki/Wasted_spark_system

[Peteg]

 So all cylinders spark after compression and exhaust in 3 simultaneous pairs - 1&2, 3&4, and 5&6???  Interesting, I would have expected 3 pulse generators, one for each coil. Just goes to show you don't know what you don't know.

[Skinhead]

I have an 03 motor that I replaced due to a knock issue.  I could pull the pulse generators if you need them, but unfortunately, I'm in Knoxville and the motor is in Detroit, so it would be a while before I could do that.

[da prez]

 I also had a pulse generator issue. Resistance  readings were all correct Did a temporary by pass on plug connector to no avail.  Replaced the generators ,bike ran better than ever.  Later , rechecked the resistance and found a breakdown in one.  1500 Goldwing generators are the same.
  If I remember , 98Valk  CSI'ed the parts to a new number. Valk part number is no longer available.

                                                        da prez

[Valker]

Do you know the part number for the GW Pulse Generator? I've searched a couple of online parts fiche sites and can't find it.

[98valk]

Do you know the part number for the GW Pulse Generator? I've searched a couple of online parts fiche sites and can't find it.

also listed as unavailable now

https://www.partzilla.com/catalog/honda/motorcycle/2000/gl1500a-a-gold-wing-aspencade/front-cover

[Valker]

Number 19 on that picture (30300-MN5-003) shows "Not Available"

[98valk]

Number 19 on that picture (30300-MN5-003) shows "Not Available"

I know I stated that.
search that number Honda uses it on other models, usually the plug connection is different.

[98valk]

how to find Honda parts that are used across model lines.

https://lilhonda.com/index.php?threads/how-to-read-honda-part-codes.4406/

https://beta.4-stroke.net/library/part-code-help.html

http://www.oscarmayer.net/atc/manuals/honda_tips/UNDERSTANDING_HONDA_PART_.PDF

https://www.kaila.net/tl125/tl125partcode.html

The first string of digits (22201-XXX-XXX) indicates the Honda function and component number for this part. For example, there are several different part numbers for the TL clutch friction plate, all sharing funtion/component number 22201. Clutch steel plates have f/c code 22311, indicating same function but different component.

So my understanding of the above is the following. I believe the product code for the std/tourer is MZO and I/S is MBY.
so based on that  30300 is the pulse generator  the same as 30300-MZ5-003 30300-MZ5-000 Pulse Generator For Honda Magna 750 VF750C 1994-2003

[F6Dave]

its a wasted Spark ignition system.    https://en.wikipedia.org/wiki/Wasted_spark_system

The big hint is the three ignition coils, each firing 2 spark plugs directly without a distributor.

I learned about that when I bought my Kawasaki KZ900 in 1976. There were 2 sets of ignition points, and 2 ignition coils. One coil fired cylinders #1 and #4, and the other fired #2 and #3.