Trouble with bike

[deltarider]

As far as that electronic ignition, I've seen it in the market under different names. Can't remember if this is the one that you had to be aware of an impeded advancer due to bolts that protruded too far at the back side of the plate or the rotor. It woudn't hurt to check the advancer works freely with a strobe timing light.

What I do know is, that on ordering this EI, you had to specify whether the unit was to be used in combination with standard or 3 Ohm coils. For the latter they had a different rotor in their program to limit the dwell somewhat.

[McCabe-Thiele (Ted)]

It not the condensers as I have electronic ignition, I didn't know that!

I guess this could have failed?

That looks like a pretty new electronic ignition unit, it's the same brand that DS sells Longfong Kukusan if I am reading it correctly.

Pretty easy to check for spark, it ought to be big & blue.

[Johnny4428]

I have this EI on my 550k3 with standard coils. No problem with it bought from DS. When it was fitted and set up it was set with the advancer held on full advance.

[beardylondon]

Correct, thats what it says on it, dated 2018

It not the condensers as I have electronic ignition, I didn't know that!

I guess this could have failed?

That looks like a pretty new electronic ignition unit, it's the same brand that DS sells Longfong Kukusan if I am reading it correctly.

Pretty easy to check for spark, it ought to be big & blue.

[McCabe-Thiele (Ted)]

My understanding is that the two different versions of the DS unit were to replace the two different points plates & advancer unit. One is for Tec the other for Nippon Denso that has a different sized lobe mount on the advancer.

The DS electronic ignition unit has a fair bit of circuitry on that board. By comparison my Dyna electronic unit has just a pair of sensors with no additional circuit board.

[Johnny4428]

Indeed Ted, I have the Dyna S on the 750. Quite a difference on the appearance.

[McCabe-Thiele (Ted)]

It might be the DS ones use less current due to some sort of circuit wizardry.

[Johnny4428]

Certainly divides opinions among the stalwarts. I thought it was the way to go set it up and forget! No more fettling. I have points and condensers fitted to my current project works fine too. As long as we break that circuits somehow and keep them coils sending pulses to the old spark plugs at the right time all is well.😁

[Sesman]

Do all the popular electronic ignition systems rely on retaining the original mechanical advance/retard mechanism?

[Johnwebley]

Do all the popular electronic ignition systems rely on retaining the original mechanical advance/retard mechanism?

No, Boyer operates the advance electronically

No mechanical moving parts



Sent from my SM-A546E using Tapatalk

[Sesman]

Thanks John.

[beardylondon]

UPDATE:

Found a loose lead on one of the plugs, opps.

Got it started, then sprayed in liberal amounts of Valvoline carb cleaner, as suggested on here, worked a treat.

Now starts on the button from cold, and idles at around 1000rpm....

However, it has now this rattle, which does not go away when you pull the clutch in

https://www.dropbox.com/scl/fi/c0e7arncvp55ek4sse5av/Honda.m4a?rlkey=8f8y8x3wsnan273dzkov0lhdl&e=1&dl=0

Thoughts? Cam chain?

[Oddjob]

That really doesn't sound nice. Has the engine been apart?

Very pronounced knocking sound with a metallic element in it.

Try putting the bike in gear, and standing on the rear brake, now slowly let the clutch out until you can feel the engine start to bite on it, does the noise go away at the same time?

[Sesman]

Hey, Ken. Do you suspect the primary drive by any chance?

[beardylondon]

Thanks, no it’s not been apart in my ownership.

Hmmmm, will try your suggestion.

That really doesn't sound nice. Has the engine been apart?

Very pronounced knocking sound with a metallic element in it.

Try putting the bike in gear, and standing on the rear brake, now slowly let the clutch out until you can feel the engine start to bite on it, does the noise go away at the same time?