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by Leggman1
Tue Jun 08, 2021 12:21 pm
Forum: Post 1970 Airheads
Topic: strange noise
Replies: 3
Views: 530

strange noise

1978 R100 Just running it a little today to seat in new rear pads and when I shut it off I heard a hissing noise from the left cylinder only??? I removed the spark plug and the noise stayed there. It did not go away until I removed the valve cover. ??? its strange it was only the left side??? I am s...