Question about Yamaha FZS 600 Fazer Motorcycles

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Number 3 and 4 cylinders not firing when idling but come in when under load

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Hi and welcome to FixYa,

I doubt if it is electrical/ignition. Offhand, the carbs right side, not a rebuild just cleaning. Thereafter, syncro/balancing.

Please post back results/update after the cleaning.

Good luck and thank you for using FixYa.

Posted on Apr 14, 2009

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