My 94 Johnson 175(glera) idles fine, in or out of gear but when I push on the foot throttle it sputters and dies.Carb and throttle are in sync. When I checked for spark it was fine on all 6 cylinders til I give it some throttle then the starboard side looses spark. If it was the shift switch it would not start at all, correct ? Does this mean the power pack has gone or is it the stator? Going to test the coils next. Any input would greatly be appreciated. Thanks.
You could always just disconnect the neutral start switch for a test run to see if that is causing the problem and be sure one way or another on that.
Not a Evinrude mechanic but we had a similar problem on an E150GL - 1995 year and it turned out to be the power pack.
Mark
With the upper motor cover off stand behind the engine. The power pack is between the cylinder heads in the middle. There are two connectors that plug into the top of the power pack. Disconnect the one on your left (port) side and retest. If the motor runs fine after unplugging port connector check the shift assist switch, wiring & diode.
If the problem still exists the stator will need to be tested.
If the stator tests good the pack is bad.
If you have to change the power pack change the optical eye at the same time.
UPDATE !!!!
-Disconnected grey plug on the port side of the power pack and engine will rev up with the foot throttle and I have spark to both sides.
-Tested shift switch and it was fine. When I pushed on pin it cut the three cylinders, and when released the spark came back.Resistance test (good).There is one common ground off the switch and one power wire which is split to 2 plugs. Anybody know why the two plugs? One to pack and other to ignition I guess? One wire does not have any continuity with switch in or out.
-(Charge coil testing)Manual talks of a 4 pin connector on the starboard side of the pack but is actualy a 6 pin. Had no voltage output off of the BRN/YEL and BRN/WHITE pins when connected to the BRN pin. Should have 150 volts. Is this telling me my stator is bad and why does it run with this condition.
- ground test for charge coil was good
-resistance test between Brn-White and BRN Wireis suppose to indicate 100-1200ohms. Had 0 ohms
-continuity test between ground and the previous wires showed 0.
What is the shift interupter switch. Is this another name for the shift switch on the starboard side of motor I already tested.
ANY IDEAS ON MY FINDINGS.And sorry for being long winded, just so many details. Thanks Jay
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