Yamaha 200 carb 2 cylinders not firing

windknotnc

Seaman Apprentice
Joined
Apr 11, 2004
Messages
45
I have a 1999 200hp SWII and the # 2 & #5 cylinders are not firing. My tach also stopped working. I rebuilt my carbs a couple months ago and all seemed fine when I cranked it after this. Today it cranked and idled fine just would not turn up nor plane the boat. Not real sure what the connection to the tach is. Tach is new and has worked fine until today. Any help appreciated.
 
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