Author Topic: Electronic Ignition 550???  (Read 1175 times)

0 Members and 1 Guest are viewing this topic.

blanc

  • Guest
Electronic Ignition 550???
« on: February 08, 2010, 01:28:20 AM »
Hi All

My bike a 78 cb550 is horrible to start when cold. Also want to do a lot of riding this year is it possible to get an electronic ignition? If so where and has anyone experience of these units?

Steve

Offline Jon

  • Full Member
  • *
  • Posts: 51
Re: Electronic Ignition 550???
« Reply #1 on: February 08, 2010, 02:58:21 AM »
There are several on eBay, i have used the dyna ones with no trouble.

regards
jon
Honda CB550f
Honda VFR400
Ducati 900 S2
Moto Guzzi LeMans III
BMW R90S

Offline Retro Rocket

  • Eggs are hard due too a
  • Really Old Timer ...
  • *******
  • Posts: 19,279
  • ROCK & ROLL
Re: Electronic Ignition 550???
« Reply #2 on: February 08, 2010, 03:50:13 AM »
Yeah i have a dyna on my 750 as well, lots of guys here do as well..

Mick
750 K2 1000cc
750 F1 970cc
750 Bitsa 900cc
If You can't fix it with a hammer, You've got an electrical problem.

blanc

  • Guest
Re: Electronic Ignition 550???
« Reply #3 on: February 08, 2010, 05:37:35 AM »
cant seemto find the Dyna unit any links or howtos onthis site?

Offline fletcha221

  • CENDSE BIKEWORKS
  • Hot Shot
  • ***
  • Posts: 288
  • Cendse Bikeworks
    • OUR SHOP
Re: Electronic Ignition 550???
« Reply #4 on: February 08, 2010, 06:00:16 AM »
Blanc,

Here ya go! This guy is awesome, keep the link!

http://www.jerryscycles.com/catalog/i321.html
"Consistency is the last refuge of the unimaginative" -Oscar Wilde

1973 CB350f
1975 CB550k
1975 CB750 K5

Offline supersports400

  • Hot Shot
  • ***
  • Posts: 270
Re: Electronic Ignition 550???
« Reply #5 on: February 08, 2010, 06:06:13 AM »
Hi,

Use of a electronic ignition is no guarantee for a quick start. A electronic ignition has some good advantages but if the engine is a bad starter, it's most likely that the problem still exists when switching to electronic ignition. Most of the time it's a combination of things like (for example) a bad battery and worn ignition. The electronic ignition won't heal the battery in this example.

In the cold everything is working against a good start, it's a combination of things :

The capacity of the battery is lower then with higher temperatures.
Air/fuel mixture is liquid at low temps, it's the fumes that will ignite, when it’s cold there’re less fumes, more liquid, so less chance for ignition.
The oil has a higher viscosity when cold, more friction, starter has to work harder, lower voltage on the battery, no power left over for ignition, weak spark.

The only thing that an electronic ignition solves at cold starts is that the spark is stronger, but this can only be done with a good battery and a good compression.

A simple check is measure the voltage drop when hitting the starter button when cold, the ignition needs a certain voltage to operate, electronic or not.

Electronic ignition does has some other advantages, but it’s not a guarantee to fix your cold start.

Jensen

Offline SHELLFISH

  • Enthusiast
  • **
  • Posts: 156
Re: Electronic Ignition 550???
« Reply #6 on: February 08, 2010, 06:10:29 AM »
There is a fella that sells them on e bay.
I think around $130.00. I just got a dyna S for the 550 K.
I have been running the Dyna DS1-2 in the 550 F sine the bike was new (1976).
Never had a problem with it. Very easy installation.
I want to die like my grandfather did...in his sleep and not screaming like the passengers in his car!

Offline GammaFlat

  • Master
  • *****
  • Posts: 1,565
  • humanitas, qualitas, quantitas and velocitas
Re: Electronic Ignition 550???
« Reply #7 on: February 08, 2010, 06:13:01 PM »
The HondaMan ignition is a very nice option for about half the money of a Dyna-S.  The system uses your points for switching but does the "heavy lifting" (switches the coils on and off) with a transistor.  See this thread for a good description:

http://forums.sohc4.net/index.php?topic=54253.0
K6
K7 
Suzuki GN400 - Ignition fixed!
03 KLR650 - Doesn't do anything very well but.. well.. does everything.