Author Topic: Plug Wire and plug combo for digital tach.  (Read 1225 times)

0 Members and 1 Guest are viewing this topic.

Offline wiskey

  • Full Member
  • *
  • Posts: 44
Plug Wire and plug combo for digital tach.
« on: March 18, 2014, 05:57:59 AM »
I have been using  Dyna 3ohm coils, to dyna copper core wires, into Iridium plugs.

The plugs (as far as I know) are only offered with a resistor.

I will be using a motogadget tach/speedo and it says that suppression wires must be used or the unit can be damaged.

I like the Iridium but I cant use them with the suppression wires correct? Any good options?

Thanks!

Offline Tintop

  • Old Timer
  • ******
  • Posts: 3,965
Re: Plug Wire and plug combo for digital tach.
« Reply #1 on: March 18, 2014, 06:29:45 AM »
I couldn't find anything that says you can't use suppression wire with Iridium plugs.  You do however want to use a quality wire.  The best would seem to be the latest 'spiral' wound.
« Last Edit: March 18, 2014, 10:27:25 AM by Tintop »
1977 CB550/4 Cafe - Speed Warrior / BOTM 03/11
1980 CB750F (project)
Whittaker GBF Vintage Racing Sidecar (XS750 power) - ITG / 151's / CMR Racing Products (SOLD)
1976 CB400 SS - stock / BOTM 04/11 (SOLD)
1973 CB750 K - basket case (SOLD)
77 CB550 Cafe build
550/750 Filter Thread
Sidecar Rebuild Thread

Offline Bill/BentON Racing

  • Really Old Timer ...
  • *******
  • Posts: 6,725
  • Ex Honda Service Manager, Cert. Honda Tech - Racer
    • BentON Racing
Re: Plug Wire and plug combo for digital tach.
« Reply #2 on: March 18, 2014, 06:43:14 AM »
I agree, Taylor makes some we use on Samauto. Using NGK racing wires on Calendar Girl, both hi po 750's.Bill
BentON Racing Website
OEM Parts | Service | Custom Builds
BentON Racing Facebook
Over 35 years of experience working on vintage motorcycles, with a speciality in Honda SOHC/4 with a focus on the CB750 and other models as well from 1966 - 1985.
______________________________________
1993 HRC RS125 | 1984 NS400R | 1974 Honda CB750/836cc (Calendar Girl) | 1972 CB 500/550 Yoshi Kitted 590cc | 1965 Honda CB450 Black Bomber | 1972 Suzuki T350 | 1973 88cc | Z50/Falcons Pit Bike | 1967 CA100| 1974 CB350 (400F motor)...and more.
______________________________________
See our latest build 'Captain Marvel' CLICK HERE

Offline wiskey

  • Full Member
  • *
  • Posts: 44
Re: Plug Wire and plug combo for digital tach.
« Reply #3 on: March 18, 2014, 08:59:30 AM »
Do suppression wires hold any resistance? i know the DR8EIX that I use do, and thus i went with a copper core wire. I know the resistance should be in one place.

IF the suppression wires do hold resistance what are my plug choices?

thanks

Offline bwaller

  • Really Old Timer ...
  • *******
  • Posts: 7,484
Re: Plug Wire and plug combo for digital tach.
« Reply #4 on: March 18, 2014, 09:05:25 AM »
I seem to recall the short length of suppresion wire we need will not add much resistance, less than the plug so you're fine. I was using resistor caps & Iridiums.   
« Last Edit: March 18, 2014, 01:34:49 PM by bwaller »

Offline wiskey

  • Full Member
  • *
  • Posts: 44
Re: Plug Wire and plug combo for digital tach.
« Reply #5 on: March 18, 2014, 09:40:24 AM »
I agree, Taylor makes some we use on Samauto. Using NGK racing wires on Calendar Girl, both hi po 750's.Bill

The NGK caps have a 5ohm cap correct?  what plugs were ran with them?

Downside of running a 5ohm cap and resistor plug? I don't have to run iridium plugs, i just want to :)

Offline wiskey

  • Full Member
  • *
  • Posts: 44
Re: Plug Wire and plug combo for digital tach.
« Reply #6 on: March 20, 2014, 06:44:58 AM »
anyone?

Offline Tintop

  • Old Timer
  • ******
  • Posts: 3,965
Re: Plug Wire and plug combo for digital tach.
« Reply #7 on: March 20, 2014, 10:21:04 AM »
I run NGK caps, supression wires with NGK BPR8EIX plugs on the sidecar with a Boyer ignition, no issues.
1977 CB550/4 Cafe - Speed Warrior / BOTM 03/11
1980 CB750F (project)
Whittaker GBF Vintage Racing Sidecar (XS750 power) - ITG / 151's / CMR Racing Products (SOLD)
1976 CB400 SS - stock / BOTM 04/11 (SOLD)
1973 CB750 K - basket case (SOLD)
77 CB550 Cafe build
550/750 Filter Thread
Sidecar Rebuild Thread