The Spares Company
Club Shop/Regalia
Parent Website
Contact Officials
Machine Registrar
Club Secretary
Membership Secretaries
MPH Editor and Forum Administrator.
Section Newsletters
Technical Databases
Photos
Home
What's new
Latest activity
Forums
New posts
What's new
New posts
Latest activity
Information
Bike Modifications
Machine Data Services
Manufacturers Manuals
Spare Parts Listings
Technical Diagrams
Whitakerpedia (Vincent Wiki)
The Club
MPH Material Archive
Flogger's Corner
Obituaries
VOC Sections
Local Sections
Local Section Newsletters
Miscellaneous
Club Assets
Club History
Club Rules
Machine Data Services
Meeting Documents
Miscellaneous
Essential Reading
Magazine/Newspaper Articles/Letters
Adverts and Sales Brochures
The Mighty Garage Videos
Bikes For Sale (Spares Company)
Log in
Register
What's new
New posts
Menu
Log in
Register
Install the app
Install
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Magneto polarity
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="greg brillus" data-source="post: 50919" data-attributes="member: 597"><p>The difference in output voltage is directly proportional to the primary voltage of the coil. Correct..? Ok, when on the test rig and running at say 1200 to 1500 rpm which is half crank speed. If you check the primary voltage output with a PEAK VOLTAGE METER with an analog needle, not a digital one.....the voltage shown on the gauge will be around 200 volts.....the ratio of primary windings verses secondary windings is 60:1 so 200 volts x 60= 12000 volts......correct.....if you rotate the camring housing 180 degrees, the primary coil output at the same test RPM will be 120 volts.......Believe it or not..? It is absolutely true.....so there is your answer.....it definitely would have to make a difference. Magnetoman would know more than I about this than I, but I have tried this many times on single cylinder type magnetos. And it seems to happen on all of them. The man I learnt all this from was one of the best magneto repairman in Australia......Luckily I spent 7 months learning from him before he passed away 3 years ago...for those in Australia that may have known him, his name was Ivan Brown.....an auto electrician by trade, a total motorcycle nut, and a very clever man indeed.......Cheers.....Greg.</p></blockquote><p></p>
[QUOTE="greg brillus, post: 50919, member: 597"] The difference in output voltage is directly proportional to the primary voltage of the coil. Correct..? Ok, when on the test rig and running at say 1200 to 1500 rpm which is half crank speed. If you check the primary voltage output with a PEAK VOLTAGE METER with an analog needle, not a digital one.....the voltage shown on the gauge will be around 200 volts.....the ratio of primary windings verses secondary windings is 60:1 so 200 volts x 60= 12000 volts......correct.....if you rotate the camring housing 180 degrees, the primary coil output at the same test RPM will be 120 volts.......Believe it or not..? It is absolutely true.....so there is your answer.....it definitely would have to make a difference. Magnetoman would know more than I about this than I, but I have tried this many times on single cylinder type magnetos. And it seems to happen on all of them. The man I learnt all this from was one of the best magneto repairman in Australia......Luckily I spent 7 months learning from him before he passed away 3 years ago...for those in Australia that may have known him, his name was Ivan Brown.....an auto electrician by trade, a total motorcycle nut, and a very clever man indeed.......Cheers.....Greg. [/QUOTE]
Insert quotes…
Verification
The Series 'A' Rapide was known as the '********' Nightmare?
Post reply
Home
Forums
Forums: Public Access
Tech. Advice: Series 'B' / 'C' 500cc/1000cc Bikes
Magneto polarity
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
Accept
Learn more…
Top