Evinrude 60 HP VRO, 1990, max 2500 rpm ?

[duke3]

I have cleaned and adjusted carbs, performed ”link n sync”, adjusted ignition with a timeing light at the flyweel, installed new QL77JC4 plugs, new gazolin, new fuelhoses and handpump, new VRO-oilhose and handpump, new power pack, new alarmsystem (horn, wirers and alarm-lamp.)<br />But when we started it up, it runs great up to 2500 rpm (in gear and without on gear). But at apx. 2600 rpm (in gear and without in gear) the motor starts to shake, cough and spit, just like if the primer solenoid was pumping fuel in the motor. And never mind how mutch power I give the motor, it will not give me more than 2600 rpm. The shakeing, coughing and spitting are gone again, when I take it back to 2500 rpm.<br />I have tryid to disconnect all TAN wirers, but it did not help. ( I have put the TAN wirers back again)<br />The comp. on the cyl. are 112, 115 and 116 psi. And Im quit sure, that it is an ignition problem, since the problems starts at 2600 rpm in gear or in neutral.<br />What have I overlooked ??????????????????<br />Does anybody know, what can be wrong ?

 

[R.Johnson]

Re: Evinrude 60 HP VRO, 1990, max 2500 rpm ?

The engine is going into SLOW,try disconnecting the tan wire going to the heat sensor on the head. I am drawing a blank on the alarm lamp, what are you discribing here?

 

[duke3]

Re: Evinrude 60 HP VRO, 1990, max 2500 rpm ?

ohhh. sorry. R.Johnson.<br />About the alarm lamp, that meens that together with the alarm horn, I have installed a red lamp light, so I can hear and see if there is any alarm. As fare as I know, is the only thing there can bring my motor in SLOW, is when the heat sensor is bad, or if the motor gets overheated. And at my last trip with the motor, I did disconnect the TAN wirer, there is going to the heat sensor, but it did not fix problem. I was also 99% sure, that the motor was going into SLOW when the problem started, but no.......????????

 

[duke3]

Re: Evinrude 60 HP VRO, 1990, max 2500 rpm ?

If the motor are going in SLOW, then the fault must be the power pack. But this one, I have already tryid to change with a new one. I was wondering, if it is posible to disconect the SLOW funktion on the power pack ????<br />So any help will be welcome..........