New Universal Ignition System

[pamcopete]

Well, here it is...my new baby. I have designed a new ignition system which will work with any XS650. The system is made up of a rotor with four magnets that activate a "Hall Effect" sensor coupled to an "IGBT" purpose built transistor to drive a 2 to 4 ohm coil. There are only two active electronic components.

I have had this system working on my faithful '78/E standard for the past few weeks and in keeping with my policy of not recommending anything I haven't actually installed on my bike, I bought a great (less than 9,000 miles) 1981/H and installed it on it as well to confirm that it is compatible with the stock coil.





Here is an updated picture of the plate and all of the electronics, now mounted on a PC board.

www.amckayltd.com/pc board1.jpg[/img]

Installation is simple. There is no external box of tricks. The rotor is made from a solid billet of aluminum. Three wire hookup: Battery, ground and coil.

Here's the specs:

Technology: Hall effect sensor, IGBT coil driver

Dwell: Fixed, 90 degrees
Coil primary resistance: 2 to 4 Ohms, dual output.
Operating voltage: 6 to 25 VDC
Operating current: 13 ma
Operating Temperature: -40 to +150C (-40 to 302F)
Spark Advance: Standard, centrifugal

Installing on a '80 to '84 requires the installation of the centrifugal advance system and cam bushings. (Available from Mikes, or used on Ebay)

I welcome your questions, comments and suggestions. The suggested price is available via PM.

Note: 277 rephase systems available mid march. PM for details.

[damian721]

Holy nice-way-to-dump-a-bunk-TCI batman!

Damian.

When you get cut, do you bleed electrons?

[mrriggs]

WOW! Very clean. Nice Job.

[dps650rider]

Won't the temperature be on the high side for the transistor?

[pamcopete]

dps650rider

The transistor has a maximum junction operating temperature rating of 175C (347F). Thank you for your interest.

[CaptDan]

pamcopete said:

Well, here it is...my new baby. I have designed and will have available for sale a new ignition system which will work with any XS650.

Very nice!

So, if you stay true to another one of your "policies" (finding super-inexpensive components to replace higher-cost pieces), can we expect a rock-bottom price as well?

damian721 said:

When you get cut, do you bleed electrons?

;D ;D

[mashermoto]

Pete,

Another awesome project

Does the 277 rephase require a box?

Also, sent you a PM.

[jack]

Pete..............very nice could you go deeper on how you plan to build the 277 ignition and what coil voltage you'd recommend and PM tags on both systems....................Jack

[pamcopete]

mrriggs...thanks for the compliment. Coming from you, I really appreciate it.

captdan...I think if you PM me for the price, you will see I'm true to my policy.

mashermoto...the 277 version does not require an external "box of tricks"

jack...the recommended coil is any coil with 2 to 4 ohms primary resistance (recommended 2.5 Ohms). Dual output for the standard system, and two single output coils for the 277 system. I have been asked this question a lot lately, so I will compile a list of recommended coils and post it.

The 277 system is as shown with the addition of a second Hall Effect sensor 138.5 degrees counter clockwise from the the standard sensor and a second transistor to drive a second coil. Please PM me for the "Tag".

[jack]

PM ya Pete Now if we could just locate some decent alternative advance springs with different tensions to alter ignition advancement but anyway that'll be down the road till I get the Q chamber bugs worked out............Jack

[mashermoto]

Pete, et. al.,

Below are a couple of links to the Gerber ignition post. The links show the Crane Cam single output coils you recommended back then for a 277 re-phase and a method to install them on the stock coil mounts.

Your recommendation worked out real well...thought it was worth repeating here.


xs650temp.proboards29.com/index.cgi?board=ID&action=display&thread=1173886314&page=7

xs650temp.proboards29.com/index.cgi?board=ID&action=display&thread=1173886314&page=8

[sparklow]

Pete, any update on the availability of your ignition? It is going to get warm here eventually and I would like to be ready!

[pamcopete]

sparklow,

Well, production parts will be here later this week. PM for details.

[moya034]

I have a stock 76 xs650c and want to get rid of those damn breaker points, but i'm a little confused as to how your one transistor drives both left and right coils?

[nebos]

Well my hat is off to Pamcopete. I completed the installation of his universal ignition yesterday and WOW! To anybody wondering about trying one out let me say that the whole install including the timing took about 30 minutes (I already had the dual output coil installed last year). The ignition came with detailed instructions plus all the screws and connectors to complete the job. Timing was a breeze also as I did not experience the erratic jumping or time change I saw when adjusting and tightening with my old points plate. The temperature got up to the mid 40's so you know I had to try it out, and ya you guessed it it worked pretty darn good. I did some frame mods as well and will be posting some pics of the install A.S.A.P. Thanks again to all at the Garage. Almost forgot, I have a 78 Special.

Nebos.