Is there slack in the enricher (choke) cable on the left side? Have you replaced the choke slides or checked to make sure that the rubber seal on the bottom is not deteriorated or cracked?
Jason Stallings wrote:
1. Left side plug fouls out all of the time. 2. When the engine is started and both cyclinders are firing - I pulled up on the throtle cable on the right side the engine reved as expected. When I tried the same thing on the left cylinder the motor bogs down and does not rev up. What could be causing this?