I ll make this quick , bought a project 91 CB750 (15000 miles All stock) , bought it with the carbs in pieces in a tray , seller bought it like this from somebody else ... Anyway , like a blind squirrel with a service manual , I got it back running but its not good . Its running lean and popping out the right side exhaust like mad and as it warms up it just starts to fight staying running and misfiring ... Okay from the top ... I went thru the carbs and they where very clean inside , its not my first rodeo on motorcycle carbs , these are very similiar to my goldwing carbs ... All passages clear , diaphragms look super and it has the correct jets for the year , I see no problems with them .... When I had it running , i sprayed starting fluid on all the carbs , and intakes , there are no intake leaks of any sort . I drained the bowls and measured the gas amount in every bowl and they were darn near perfect . Away from the carbs , checked compression , 150 psi every cylinder , I checked all the ohms reading for the two coils and the pulse generator from the cdi plug as per manual , they all spec good within the range and there are no broken wires . I double checked the coils directly and they are in spec . I even swapped them and there was no change , still popping out the right pipe , and running terrible . One would think its a carb issue , but I never heard a bad carb make a bike run so poorly . I havent changed the plugs yet , but I have swapped them around and changed nothing . My only ray of light is the ICM or the Pulse generator , anybody seen a bad ICM or pulse act up on this bike .... Not sure what to think at this point
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