No Start

[Johnbouy]

I have a 2006 Yamaha 150Hp four stroke that will only start on my battery position one. When I move the switch to position two I get a clicking noise and the battery voltage drops to under 10 volts (like a dead short). If I exchange the batteries to the opposite positions the same thing happens. I have taken the switch out and took it apart and it looks brand new, did a continuity check and all switch positions check out. I disconnected the battery from all connections and used jumper cables to connect it to the input port of the switch with the same results. I then put the jumper cable directly onto the output terminal and it reacted the same way (meanwhile the position one of the switch will always start the engine). Any ideas?

 

[GA_Boater]

Johnbouy This is your new thread. It is posted in a completely unrelated thread. Please read the Help Tip on top of the page.

You might have a bad cable on battery #2. Check the negative cable, too.

 

[Johnbouy]

Yamaha 150 HP four stroke, No start on position 2 of battery switch

I have a 2006 Yamaha 150 HP four stroke and it will only start on position one of the battery switch. When I turn the start key the engine makes a sound for a second and if I look at the battery voltage it drops from 12.6 volts to under 10, as if there is a dead short. I have swapped batteries(and put a new battery in) and it still will only start on position one. I disconnected everything from battery # 2 and used jumper cables to connect to the input position on the battery switch and it will not start. I connected the jumper cables to the out put terminal of the battery switch (by passing the switch) with the same results. If I start the engine in the "both" position of the battery switch, the alternator seems to charge both batteries. Note: battery one is in the rear of the boat and has about a 2 foot run to the engine while battery 2 is about a 9 foot run. Given all this; is it possible that I have a weak solenoid or starter motor, that can't deal with the longer run from battery two?

 

[sam am I]

Edit...No Text

 

[GA_Boater]

Johnbouy

Merged your two threads.

sam am I You original post had text and a wiring diagram. - Never mind, Sam. I crossed threads. :doh: