Ajs Model 14 Alternator

Information relating to the Matchless G2 or AJS Model 14 250cc Lightweight
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Ajs Model 14 Alternator

Postby robot » Sun Nov 28, 2010 2:13 pm

Can the Lucas RM 21 alternator be a direct replacement for the Wipac version fitted to my Model 14 utilizing the existing Wipac rotor? Whilst the present alternator is providing some charge, with the headlight on there is insufficient oomph. It's a 12 volt conversion so all 6 coils are/should be operating.

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Ajs Model 14 Alternator

Postby CR » Wed Dec 01, 2010 10:40 pm

No. Wipac and Lucas rotors are a different outer diameter...and it follows therefore that stators are different too.

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Ajs Model 14 Alternator

Postby wilko » Wed Dec 01, 2010 11:21 pm

Still should be enough oomph when 12volts. You're doubling the wattage?Somethings amiss with your stator wiring.

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