94 Yamaha v4 140 problem

bago

Petty Officer 3rd Class
Joined
Jan 19, 2007
Messages
86
Hi everyone,Ihave bought an Yamaha 140 with a problem.When on muffs it starts and idles fine,but when above 2000rpm it runs rough.Might be some electric problem,but since I don`t have a wiring diagram it`s hard to tell.Can somebody help me with an advice or tell me if an on-line diagram can be found?Thanjs!
 
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