Author Topic: Spark plug Wires install 76 550 (Read 1786 times)

messeduptriple · « **on:** August 25, 2019, 10:42:48 AM »

Ok so I was looking in the book and my book isn't very clear too me about the initial install of the plug Wires. I have the new ignition coils in and mounted. I bought the wire crimp tool and another wire cutting tool. So is there anything specific I should do for cutting the plug Wires to get this correct? The crimper has a 10-22awg not sure if that's what I need. Also what's the proper way I should be crimping this? I'm kinda confused and I couldn't find any YouTube video on how to do all this. Does anyone have a link to a video or can guide me on how to properly do my new wires? Any help would be so great.

*** Also I'm confused what or where this metal thing goes that it came with? ****

-Cristian

Sent from my PH-1 using Tapatalk

RAFster122s · « **Reply #1 on:** August 25, 2019, 11:59:55 AM »

The crimped you bought is for terminals like a quick disconnect spade lug.

Most of the spark plug caps used on bikes available in the aftermarket are NGK and they do not crimp on but, they screw onto the end of the wire. A clean cut of the wire is needed, trimming back 1/4 - 3/8 inch of old wire before pushing the wire end into the plug cap and screwing it on.

messeduptriple · « **Reply #2 on:** August 25, 2019, 12:10:24 PM »

Quote from: RAF122S on August 25, 2019, 11:59:55 AM

The crimped you bought is for terminals like a quick disconnect spade lug.

Most of the spark plug caps used on bikes available in the aftermarket are NGK and they do not crimp on but, they screw onto the end of the wire. A clean cut of the wire is needed, trimming back 1/4 - 3/8 inch of old wire before pushing the wire end into the plug cap and screwing it on.

So cut back the new wire about 1/4 inch you say and it should be ok to just screw in? I didn't know that . I thought I had to do some more stuff. That sounds kinda quick and easy

Sent from my PH-1 using Tapatalk

RAFster122s · « **Reply #3 on:** August 25, 2019, 12:21:11 PM »

New wire should not need cut. Do you have new sparkplug caps? If you test old ones they should read around 5k ohms unless original, then they start out as 10k ohms. To test put one lead of multimeter on terminal/metal threaded post end where wire screws in and the other on the terminal that the end of the plug connects... Set multimeter to resistance setting.

New NGK spark plug caps are fairly inexpensive.

Scott S · « **Reply #4 on:** August 25, 2019, 01:05:42 PM »

The metal tab looks like a hanger or mount of some sort. The wires that it's attached to...the ones all coiled up...where do you have those connected? What do the ends of those wires look like?

The ends of the spark plugs wires, the big ones, you just screw a new spark plug cap onto the end. Slip the small rubber boot on and push it up the wire, screw on the plug cap, then pull the boot down over the end of the cap.
There are two different spark plug caps for the 500/550. One style for cylinder 1 and 4, one style for cylinder 2 and 3.
You don't need to cut, strip or crimp the caps onto the wires.

You *probably* don't need to do anything to the smaller wires, but show us the ends of those first, please.

messeduptriple · « **Reply #5 on:** August 25, 2019, 03:25:30 PM »

Quote from: Scott S on August 25, 2019, 01:05:42 PM

The metal tab looks like a hanger or mount of some sort. The wires that it's attached to...the ones all coiled up...where do you have those connected? What do the ends of those wires look like?

The ends of the spark plugs wires, the big ones, you just screw a new spark plug cap onto the end. Slip the small rubber boot on and push it up the wire, screw on the plug cap, then pull the boot down over the end of the cap.
There are two different spark plug caps for the 500/550. One style for cylinder 1 and 4, one style for cylinder 2 and 3.
You don't need to cut, strip or crimp the caps onto the wires.

You *probably* don't need to do anything to the smaller wires, but show us the ends of those first, please.

I will for sure. I won't be home until tomorrow evening at 6pm after work. It's basically a small copper flat wire flush with the rubber coating protector. I should have taken a picture of that.

Sent from my PH-1 using Tapatalk

Scott S · « **Reply #6 on:** August 25, 2019, 03:59:49 PM »

Each coil should have two small wires coming out of it. The stock coils were color coded blue and yellow to match the points, and a black/white stripe for power. Most aftermarket I've seen are black and yellow. One is power to the coils (Black/white stripe on a Honda) and the other goes to the points (either blue or yellow). You might have to crimp on the correct bullet connector to plug them into the stock harness.

messeduptriple · « **Reply #7 on:** August 26, 2019, 03:31:45 AM »

Ok sounds good. I'm gonna check that out this evening. Thanks for the help!!!!

-Cristian

Sent from my PH-1 using Tapatalk

messeduptriple · « **Reply #8 on:** August 27, 2019, 04:38:57 PM »

Quote from: Scott S on August 25, 2019, 01:05:42 PM

The metal tab looks like a hanger or mount of some sort. The wires that it's attached to...the ones all coiled up...where do you have those connected? What do the ends of those wires look like?

The ends of the spark plugs wires, the big ones, you just screw a new spark plug cap onto the end. Slip the small rubber boot on and push it up the wire, screw on the plug cap, then pull the boot down over the end of the cap.
There are two different spark plug caps for the 500/550. One style for cylinder 1 and 4, one style for cylinder 2 and 3.
You don't need to cut, strip or crimp the caps onto the wires.

You *probably* don't need to do anything to the smaller wires, but show us the ends of those first, please.

So I'm going from left to right 4-1-3-2 does this sound right? Also so after you peek at this should I cut down to wire with knife cutter down to the wire 1/4 inch back and should be good you think?

-Cristian

Sent from my PH-1 using Tapatalk

Scott S · « **Reply #9 on:** August 27, 2019, 04:59:25 PM »

You dont need to trim those wires back. You just screw the spark plug cap onto it.

One coil feeds the outer two cylinders, the other coil feeds the inner two cylinders.
You need to check the small wires on the coils and tell us how you have them connected to the points. The points should have a blue wire and a yellow wire.

messeduptriple · « **Reply #10 on:** September 17, 2019, 03:03:16 PM »

So I replaced the new spark plug Wires on this and it's running like bat crap. Sounds real choppy. And eventually dies out now. I'm curious if maybe I messed up with installing the spark plug Wires. I tried to look In the book under spark plugs but it doesn't show anything to guide me on it. Can someone just peak at this bootleg wiring I got here and see if this is correct? I kinda labeled up best I could. Also what is that top metal square thing

Should this be hooked up or what is it for?
Any help would be awesome.

-Cristian

Sent from my PH-1 using Tapatalk

messeduptriple · « **Reply #11 on:** September 17, 2019, 03:03:53 PM »

When fired up the #2 pipe is cool....the others are hot

Sent from my PH-1 using Tapatalk

Scott S · « **Reply #12 on:** September 17, 2019, 03:13:28 PM »

( Topics merged )

messeduptriple · « **Reply #13 on:** September 17, 2019, 03:29:05 PM »

Quote from: Scott S on August 27, 2019, 04:59:25 PM

You dont need to trim those wires back. You just screw the spark plug cap onto it.

One coil feeds the outer two cylinders, the other coil feeds the inner two cylinders.
You need to check the small wires on the coils and tell us how you have them connected to the points. The points should have a blue wire and a yellow wire.

I don't know how to find my past threads and how to delete them as well. Can you guide me on how to delete them and recover past ones? I'm using Tapatalk. I tried to look and I couldn't find the posting notification through my emails. That's why I started that last post. Sorry about that. But I don't know how to delete them and find them.

-Cristian

Sent from my PH-1 using Tapatalk

Scott S · « **Reply #14 on:** September 17, 2019, 03:30:46 PM »

I merged them. TBH, I just figured out how to merge topics.

If you look on your profile, you should see "show posts". You can find your old topics.

Gene · « **Reply #15 on:** September 17, 2019, 05:18:43 PM »

Check for spark on #2. I know that sounds obvious, but what the heck. If I recall your left coil feeds 1 & 4, the right coil 2 & 3.

Could be the other way round - I don't have mine to look at any more.

Deltarider · « **Reply #16 on:** September 17, 2019, 10:50:38 PM »

The little square thing is just to keep things tidy. It is supposed to go under the 5 mm coil mounting bolt to keep the wires where they more or less should be. It has no function in the electric scheme of things. As far as the cyl that stays cool, check spark is not leaking away, a known problem on CB500/550s because both the plugcap and the plugwire can easily make ground to the very nearby head. If it doesn't arc somewhere there, check the plugcap connection and the plugcap itself. Get that particular sparkplug out, have a look at its nose (pic?) and report us. If it is sooted, replace sparkplug for a fresh one.

Bodi · « **Reply #17 on:** September 18, 2019, 10:59:16 AM »

With these dual fire coils, if #3 is firing then there has to be a spark (or short) somewhere in the #2 plug wire. Assuming it's not sparking in the #2 plug (explaining #2 not firing) you have to find where it is. Running in a dark garage, you may be able to see a spark. A bad plug cap can cause the voltage to arc even through a new plug wire's insulation: when the points open the coil needs to discharge and voltage will rise to as high as needed to create an arc to ground from both plug cables. You should never run the engine with a plug cap removed because of that, if that wire arcs through the insulation it leaves a carbonized path that will arc much easier than intact insulation, and it may start arcing there and bypassing the plug unpredictably.
Try to route the spark cables to avoid contacting any frame or engine metal, particularly metal with a sharp edge or point. That metal clip thing looks like a good part to leave out if possible, it has rather sharp edges right against the cable.

Scott S · « **Reply #18 on:** September 18, 2019, 11:28:39 AM »

Easy things first. Make sure the plug cap is securely screwed into the wire.
If so, swap the plug from 2 to 3 and see if it follows the plug.

You can also check the valve adjustment on #2, make sure it's correct.

messeduptriple · « **Reply #19 on:** September 20, 2019, 02:20:51 PM »

Well as I'm looking at this I wanna make sure I have these lil wires plugged correctly. Does this look correct? One is a black wire...into a black slot. The other is a blue into a yellow wire. Maybe I have these backwards and that could be my issue. Everything was working fine before I switched these coils to the new ones. My buddy said just put back the old ones in. But then now I'm looking at it like...is this right though?

-Cristian

Sent from my PH-1 using Tapatalk

RAFster122s · « **Reply #20 on:** September 20, 2019, 05:05:31 PM »

Are your new coils wired with blue and black wires?

messeduptriple · « **Reply #21 on:** September 20, 2019, 05:16:02 PM »

Quote from: RAF122S on September 20, 2019, 05:05:31 PM

Are your new coils wired with blue and black wires?

Yes

Sent from my PH-1 using Tapatalk

Scott S · « **Reply #22 on:** September 20, 2019, 05:27:13 PM »

The BLACK wire on your new aftermarket coils should be plugged into a BLACK/WHITE wire on the main harness.
The Blue and Yellow come from the points. Make sure you have the 1/4 points going to the 1/4 coils and the 2/3 points going to the 2/3 coils.

Deltarider · « **Reply #23 on:** September 21, 2019, 03:56:14 AM »

Just a look at your wiring scheme could have told you that...

News:

Author Topic: Spark plug Wires install 76 550 (Read 1786 times)