2004 Johnson Four Stroke Idle Speed

[kevinm53]

Does anyone know what RPM my new Johnson 4 stroke 60hp should be idleing at? It seems to idle somewhat high. One of the reasons I purchaced this motor is I was told it would troll slower than my two stroke.<br /><br />Right now when warmed up, it idles at around 750 RPM. I asked a mechanic and he told me that was normal. The dealer originaly told me 600 RPM was where it was supposed to run.<br /><br />Should I take it in and have them turn it down? I think it may be computer regulated.<br /><br />Thanks.... Kevin M

 

[JB]

Re: 2004 Johnson Four Stroke Idle Speed

Hi, Kevin.<br /><br />The Service Manual says 700rpm +/- 50rpm.<br /><br />To me that means 650rpm would be within spec., but so would 750rpm.<br /><br />Another thought. After you crank her up, does she drop the idle speed after about 30 seconds? That is when the cold idle enrichment turns off.<br /><br />My DF70 idles at 700rpm, in or out of gear. It trolls my Boston Whaler 17 very well except for walleye. I just turn the engine off and drift or use my electric in that case.<br /><br />Good luck.

 

[kevinm53]

Re: 2004 Johnson Four Stroke Idle Speed

Thanks JB...Ill just be satisfied with a great running motor and go from there.