T500 contactless ignition

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kall399
On the street
Posts: 25
Joined: Wed Sep 23, 2020 10:33 am
Country: Finland
Suzuki 2-Strokes: 1973 T500

T500 contactless ignition

Post by kall399 »

Hello

Does anyone have advice to the usability of these ignition kits that replace only the contact breakers with magnetic? sensors and keep the original coils and generator?

example in link: https://www.ebay.com/itm/114759235648
https://webshop.knalnaarpotz.nl/t250-t5 ... ition.html
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jabcb
Moto GP
Posts: 4080
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: T500 contactless ignition

Post by jabcb »

Was just lookin into the unit listed on Knalnaarpotz. Am thinking about using it on a T500 project this winter.

They made mention of “SPARCON”.
With a bit of web searching I found it:
https://sparcon.nl/product/suzuki-t250- ... eking-set/
https://sparcon-nl.translate.goog/produ ... r_pto=wapp

Looks very similar to ignition systems sold for 4 stroke bikes. I would expect the Dutch ignition to be reliable.

The T500 has a pretty meager alternator. Before deciding on it, I’m interested in knowing the dwell angle.
The stock points ignition has a dwell angle of about 180 degrees. A much larger dwell angle will increase the ignition load on the alternator.

I just sent them an email asking about it. Will update you with their answer.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
User avatar
jabcb
Moto GP
Posts: 4080
Joined: Mon Dec 13, 2010 4:32 pm
Country: USA
Suzuki 2-Strokes: 69 T350 thru 75 GT750
Location: southwestern Pennsylvania

Re: T500 contactless ignition

Post by jabcb »

Sparcon answered my email. The dwell is 180 degrees. So alternator load should not be a problem.

Am going to order the ignition for a T500. Not much info about ordering & shipping on their website. Send them an email asking about ordering from, and shipping to, the USA.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 & 75
GT380 72
T500 69 project & 73 project
T350 69 & 71
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE
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