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Suzuki vl125 misfire/ spark timing front cylinder


Jim with the old crap
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I got a suzuki vl125 and it's slowly killing me. I bought it as a non runner   replaced cdi . New coils   new plugs new leads ans caps ans boom running perfect. I left it I garage fuel off and carb drained over the winter and then wen summer came I primed the carb and it wouldn't start. I took carb off cleaned it up and then the bike started. It ran fine and then I left it for 2 weeks then went to take it for its mot to start using it as a daily and it was misfiring on cylinder 1. Tried the usual swapped plugs coils etc and no diffremce still cylinder 1 misfire andits hard to start sometimes no spark on cylinder 1 at all. Playing with it again after 6months I bought a new bike to use in meantime. Wen I pull the ht lead with the bike running then spark jump the gap and cylinder 1 bursts into life. I thought ahh fuel may not be feeding front cylinder, pull lead fuel builds amd then it fires it... so I bought a new carb as old one wasn't very adjustable as screws were jammed solid. New carb same problem it's not fuel feed its gotta be timing ??? Right . But how and anyone experienced anything  like this . I'm at a loss and I don't wana quit on this bike  

I'm new to this forum so thankyou in advance anyone that can help shed some light on this damn thing 

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