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Old 01-30-2014, 01:12 PM
rlitman rlitman is offline
LawnSite Bronze Member
 
Join Date: Sep 2009
Location: Long Island
Posts: 1,099
I can't be sure from just the picture, but the primer bulb in Jeff's picture looks mighty "dark". They darken like this as they harden and slowly get "crunchy". Eventually they crack and suck air. The vacuum leak makes the machine run lean, like you're describing. Is your bulb nice and squishy? Even if you don't see a crack, it might be there, just not easily visible until you flex the bulb.
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