No spark offside plug.

Information relating to the Matchless G11 or AJS Model 30 600cc twin
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OLD SHEP
Posts: 12
Joined: Wed Nov 26, 2003 12:00 am
Location: DEVON UK

No spark offside plug.

Post by OLD SHEP »

Have lost spark on offside plug for my 1956 Model 30. Last ride bike would only tick over or take a tiny bit of throttle. Now won't start. New plugs, cleaned carb. Checked slip ring and carbon brushes, looked good. Checked sparks, none on offside plug, the other looked good. Any magxperts on here seen this before? Chris.
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1608
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Posts: 2493
Joined: Mon Oct 05, 2009 1:00 am
Location: ESSEX UK

No spark offside plug.

Post by 1608 »

Have you tried another plug. Check that the mag points are opening for both cylinders.
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Rob Harknett
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Posts: 11236
Joined: Mon Jan 01, 1990 12:00 am
Location: ESSEX UK

No spark offside plug.

Post by Rob Harknett »

What above connection to the mag and brush
Don Madden
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Posts: 2882
Joined: Mon Jan 01, 1990 12:00 am
Location: USA USA

No spark offside plug.

Post by Don Madden »

Check for uneven wear of armature where the ground brush contacts & same for the slipring. Spark erosion will eventually pit both where the brushes no longer make contact. Cheers, Don.
OLD SHEP
Posts: 12
Joined: Wed Nov 26, 2003 12:00 am
Location: DEVON UK

No spark offside plug.

Post by OLD SHEP »

I've ended up sending the mag to Plymouth for a rebuild. 'Kinell. That's going to be expensive. Chris
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