Same question about TACH and Ignition type

[Seaking]

Looking around for a new tach and that old question pops up again..

 

Single Fire Ignition or Dual Fire Ignition on our bikes?

 

I promise to write it down this time.. I did a search and couldn't find it in previous posts.. (a lot of posts about tachs)

 

Thanks in advance.

[MiCarl]

Wasted spark.

 

Each plug fires once per revolution.

[Guest Slab_Ryder]

So MiCarl, does that mean Single or Dual Fire Ignition for the Second Generation RSV?

[MiCarl]

So MiCarl, does that mean Single or Dual Fire Ignition for the Second Generation RSV?

 

I'm not familiar with the term "Dual Fire". You might check with the manufacturer/seller - each plug fires every revolution.

[Seaking]

Ya know... its a simple question which never gets a simple answer.. frustrating at times.

 

When you purchase a tach, it requires you to know if you have a single or dual fire ignition.. So the answer silly people like us just want to know is "single" or "dual" fire ignition.. cuz that's how the question is posed.. not the book answer of bendal torque rotor sludge pump limple induction system 3... cuz that doesn't answer the question as it was posed..

 

But the answer, after all of that.. is ..

 

"SINGLE fire ignition" (same as newer HD bikes)

 

Shame I had to find the answer somewhere other than here =(

 

I do appreciate the answers supplied, though..

[dingy]

I am fairly sure it is classified as a Dual Fire Ignition System.

 

All Ventures & VMaxs 1990 and later went to a single pickup coil system which necessitates the Dual Fire concept.

 

Each plug fires on the compression stroke and the Exhaust stroke.

 

A Single Fire Ignition System will only fire on the compression stroke.

 

What is the source of the Single Fire conclusion?

 

Gary

[Seaking]

Just taking a wild guess like everyone else.. and was mistaken

 

I just found on Baron's site a tach listed for the Venture, it comes with the adapter for a "single fire ignition". http://www.baronscustom.com/catalog/display/1062/index.html

 

The PDF doc states that the adapter, which is required for SINGLE FIRE IGNITION systems, is NOT required for Venture..

 

"IT IS NOT REQUIRED ON 1980-2003 HARLEY DAVIDSON models using the stock Tach output from the bike (PINK wire), YAMAHA Road Star, Royal Star, RSTD, Venture or 1998 to 2010 Vstar 650 & 1100, KAWASAKI VN1500/VN1600 Models, HONDA VTX1300"

 

I guess THAT says it all...

 

But where is this PINK wire they refer to?

 

The tach apparently has:

 

GREEN WIRE provides the RPM count

BLUE or YELLOW wire provides power for the illumination

RED wire provides power to the Tach

BLACK wire is for ground

 

I would then assume that the GREEN wire goes to the coil itself?

 

Can the 'Blue or Yellow' and the Red wire be powered from the same source? (any hot wire?)

 

Cheers

[Guest Slab_Ryder]

Seaking, I bow to your greatness, knowing you are never wrong. When I install my Tach that I recently ordered from Barons, knowing my idle is set to 752RPM (by ear, using that old Sonarman 1/2 count trick), if the tach is 50% off when set up as a Single Fire Ignition, it will mark a monumental moment in history.