Inboard starter

Tm1414

Recruit
Joined
Jul 4, 2014
Messages
5
I have the Arco 70200 that is used as a replacement when the 70100 inventory is exhausted. The 7200 is a high performance gear reduction starter. Hence, why it looks so different. Here is what the supplied directions state: 1) Remove the starter cable from the starter relay and re-install on the same terminal post as the battery positive cable. 2) Attach the 12GA red wire to the starter relay post where the starter cable was removed. 3) Attach the other end of the starter cable to the large post on the starter solenoid (mounted on the new starter). 4) Attach the other end of the 12GA wire to the spade terminal on the starter relay (mounted on the new starter). 5) Installation complete. I followed these directions exactly, but when I turned the key on to where just accessories should come on the engine cranks over any suggestions would be great
 

NYBo

Admiral
Joined
Oct 23, 2008
Messages
7,107
Welcome to iboats!:welcome:

I can't figure out why the heck you would connect the starter cable to the same post as the battery cable on the starter relay. The starter should end up cranking as soon as the battery is hooked up. :confused:

Perhaps I'm not following how the starter is wired. Can you post a wiring diagram? I would think the new starter should be hooked up the same way as the old one. Does the old starter have just the one large post for connection of the large cable?

EDIT: Okay, looking at the instructions again, it appears that the two starters have different connections, and you are bypassing the external relay as the new starter must have the relay built into the solenoid that is bolted to the starter. The 12 gauge wire from the ignition switch should go to the spade connector on the solenoid. Instead, the instructions have that power/signal going through the external relay, which is fine if the wire from the external relay to the ignition switch is attached to the proper terminal on the ignition switch. It sounds like it is not, or the ignition switch has shorted internally.
 
Last edited:

Tm1414

Recruit
Joined
Jul 4, 2014
Messages
5
Replacing the ignition switch was going to be my next attempt Thanks
 

Tm1414

Recruit
Joined
Jul 4, 2014
Messages
5
Replacing the ignition switch was going to be my next attempt Thanks
 
Joined
Feb 17, 2012
Messages
2,906
looks like the instructions for using a starter with a built in solenoid on a motor that was designed for a remote mount solenoid.
The original solenoid becomes a relay for the low amp circuit and the high amp is now controlled by the solenoid on the new starter.
If you swap instruction around it makes more sense.
disconnect battery
remove old starter and install the large wire on the large terminal on the new starter
at the original solenoid move the power out cable that is now connected to the new starter to the same terminal that the battery cable is connected to
install a new wire 12g from the output side of the solenoid to the spade terminal on the new starter
reconnect battery and test
power is now always on to the new starter built in solenoid. When the original solenoid closes power is supplied to the new starter solenoid coil causing it to pull in to engage the bendix. At the same time the solenoid contacts close and supplies high ampage to the starter.
the 12g wire should be on a terminal at the original solenoid on its own........is that how u have it wired?
p.s if you old starter has a solenoid built into it then this is the wrong instructions for installing it.
 

Tm1414

Recruit
Joined
Jul 4, 2014
Messages
5
Changed ignition same problem wiring must be wrong somewhere I'll wait till Monday when arco technical support comes in
 

Tm1414

Recruit
Joined
Jul 4, 2014
Messages
5
Yes Glenn that is how I have it wired old starter did not have solenoid built in
 

NYBo

Admiral
Joined
Oct 23, 2008
Messages
7,107
Try running the wire from the "Start" terminal on the ignition switch directly to the spade terminal on the starter solenoid.
 
Top