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Ignition Coils

Started by AppleJack, August 17, 2019, 12:33:18 PM

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ribbert

Quote from: Pat Conlon on August 19, 2019, 09:49:04 PM
Re: 84/85 handlebar mounted mirrors.

Many aftermarket options available, however, be advised that the right mirror is a reverse thread.
This is something all Yamaha's have in common. This reverse thread prevents overtightening of the mirror stalk on the right side from wind pressure pushing on the forward side of the mirror.


The wind would loosen a LH thread on the RHS!
Anyway, the LH thread is so the mirror loosens if you clip something with it instead of whipping the bars around and falling over or breaking the mirror mount which on many bikes also holds the front brake lever. Less important bit still handy, it protects the mirror from breaking if you clip something.
It's a safety thing, you bump it, it swings out of the way.

Noel
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

Pat Conlon

Quote from: ribbert on August 19, 2019, 10:49:56 PM
Quote from: Pat Conlon on August 19, 2019, 09:49:04 PM
...This reverse thread prevents over tightening of the mirror stalk on the right side from wind pressure pushing on the forward side of the mirror.

The wind would loosen a LH thread on the RHS!

That is correct, the wind pressure loosens the right mirror. (just like it does the left mirror)
That's why I said ^^^ what I said...with the key words being "prevents over tightening"

Good point on the safety issue
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

ribbert

Quote from: Pat Conlon on August 19, 2019, 09:49:04 PM
Re: 84/85 handlebar mounted mirrors.

.....This reverse thread prevents overtightening of the mirror stalk on the right side from wind pressure pushing on the forward side of the mirror.

Pat, if I was you, I'd blame that one on the meds, there can be no other explanation, unless of course, like me......

Quote from: Pat Conlon on July 24, 2019, 11:08:26 AM

Noel.....you don't know what you are talking about....


I think you just got hit by the karma bus Pat. :lol:

Noel

"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

Pat Conlon

Quote from: ribbert on August 20, 2019, 06:43:45 AM
Quote from: Pat Conlon on August 19, 2019, 09:49:04 PM
Re: 84/85 handlebar mounted mirrors.

.....This reverse thread prevents overtightening of the mirror stalk on the right side from wind pressure pushing on the forward side of the mirror.

Pat, if I was you, I'd blame that one on the meds, there can be no other explanation, unless of course, like me......

Noel, I don't understand.... why is my statement wrong?  Karma be damned...
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

AppleJack

Cautiously optimistic here today.  Still no spark with plug laying on cylinder head - this is number one cylinder with the good plug boot! 

But the ohmmeter check across the pickup coils is way out of spec.  I'm showing like 3 or 4 ohms instead of the 110-130 ohms spec.  Checking by unplugging the loom from the IC Ignitor box and ohming from orange to black and again from grey to black - both the same at nearly a short. 

Let me guess, these are made of unobtanium?  What have others done in this instance?
Jon Appleby

AppleJack

Jon Appleby

FJmonkey

84 and 85 will be the same except for paint color.
The glass is not half full, it was engineered with a 2X safety factor.

'86 Ambulance - Bent frame, cracked case, due for an overhaul
'89 Stormy Blue - Suits my Dark Side

ribbert

Quote from: Pat Conlon on August 20, 2019, 11:23:08 AM
Quote from: ribbert on August 20, 2019, 06:43:45 AM
Quote from: Pat Conlon on August 19, 2019, 09:49:04 PM
Re: 84/85 handlebar mounted mirrors.

.....This reverse thread prevents overtightening of the mirror stalk on the right side from wind pressure pushing on the forward side of the mirror.

Pat, if I was you, I'd blame that one on the meds, there can be no other explanation, unless of course, like me......

Noel, I don't understand.... why is my statement wrong?  Karma be damned...

No, you're right Pat, on reflection it sounds like a perfectly logical explanation. Having just returned from a long sabbatical, I was caught off guard by your shitty remarks the other week and for the first time ever in over 4000 posts, I responded in kind. I am deeply disappointed in myself for not remaining above it. My apologies if I you found my comments in any way offensive.

I will endeavour to do better in the future.

Noel
"Tell a wise man something he doesn't know and he'll thank you, tell a fool something he doesn't know and he'll abuse you"

AppleJack

Phew!  Kinda lucked out on the pulse pickup coils.  Got a little confused as to the orange and grey leads going to the IC Ignitor - the other day I was actually checking the orange and grey going to the six-gang plug. 

I say I got lucky because the pulse coils actually go to the four-gang plug.  But re-checking today (after already ordering a different pair from E-Bay) I find the coils are still suspect as they are checking at 165 ohms. Still out of the 110-130 ohms spec!  Sheesh, what a Ma-Roon hehe

Big shout-out for the great feedback from the forum.  Greatly appreciated. 

Along with the new coils I've got new plug boots, round and oval grommets, and a new air filter on the way from rpm. 
Jon Appleby

Pat Conlon

The ohm values for testing the pick up coils is INCORRECT in the Haynes and Clymer FJ manuals.
Throw those POS in the trash. They just cost you a set of coils you did not need to buy.

Use the ohm values in the Genuine Yamaha Factory Service Manual.
149-182 ohms when the coils are warmed to 68*f

If your coils tested @ 165 ohms you are fine.

1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

AppleJack

Wha!?  Oh man, well lesson learned; and only $35! 

So I'm still in search of my no-spark culprit.  It's not the ignition coils, plug wires, the pulse pick-up coils, and I have two different IC Ignitor boxes I've tried too.  Not sure what's going on here.  Gonna ohm out spark plugs next? 

Anyone know of a good Yamaha shop in Charlotte NC metro area? 
Jon Appleby

AppleJack

Just pulled my Clymer manual and checked again. 

The spec you cite is listed for the Digital Control Ignition for the 1989 and newer bikes, while the TCI spec is listed at 108-132 ohms.  This is a misprint though huh?  They're both the same resistance value? 
Jon Appleby

AppleJack

Just occurred to me that this could be from the side stand, neutral, clutch, or kill switches too.  Got some troubleshooting to do. 

Lights come on, turn signals work, and engine spins over with the ignition switch on...
Jon Appleby

Pat Conlon

Quote from: AppleJack on August 21, 2019, 05:38:03 PM
Just pulled my Clymer manual and checked again.  

The spec you cite is listed for the Digital Control Ignition for the 1989 and newer bikes, while the TCI spec is listed at 108-132 ohms.  This is a misprint though huh?  They're both the same resistance value?  


Here's a post from 4 years ago where I went through on my '84 what you just did....(see post #10)
http://www.fjowners.com/index.php?topic=13448.msg135362#msg135362
1) Free Owners Manual download: https://tinyurl.com/fmsz7hk9
2) Don't store your FJ with E10 fuel https://tinyurl.com/3cjrfct5
3) Replace your old stock rubber brake lines.
4) Important items for the '84-87 FJ's:
Safety wire: https://tinyurl.com/99zp8ufh
Fuel line: https://tinyurl.com/bdff9bf3

T Legg

Quote from: AppleJack on August 21, 2019, 05:57:18 PM
Just occurred to me that this could be from the side stand, neutral, clutch, or kill switches too.  Got some troubleshooting to do. 

Lights come on, turn signals work, and engine spins over with the ignition switch on...
The starter wont operate if the clutch,side stand switch or kill switch is off. 
T Legg