how to start engine (not on boat)

[ttles714]

What are my options to start / run a SX250TXRZ (ox66) on a stand. No harness connected. (aside from a battery and + and - cables ) .. I have a key switch with harness that I thought would connect at the engine, but it has a different connector. I would like to start / run / and stop the engine from an engine stand.

[boscoe99]

What are my options to start / run a SX250TXRZ (ox66) on a stand. No harness connected. (aside from a battery and + and - cables ) .. I have a key switch with harness that I thought would connect at the engine, but it has a different connector. I would like to start / run / and stop the engine from an engine stand.

Connect a battery to the motor. Install a flush muff and turn on the water.

Jumper the red wire terminal in the engine harness connector to the yellow wire in the same connector. This will apply power to the ECU.

Apply 12 volt power to the brown wire terminal in the engine harness connector. This will crank the motor.

To stop the motor jumper the white wire terminal in the engine harness connector to the black wire connector or to the engine block.

Or, get the correct control box and key switch.

[ttles714]

Boscoe99.. on the money .. thanks

Thanks, that's what I was looking for... I have a key switch with a short harness that I thought would plug right into the engine connector. BUT !! the engine has a 10 pin connector and the key harness set up has an eight pin connector ( I believe 10 and 8 ??) not there to check again. The key switch set up came out of a control box. (key switch, choke sw, horn all wired and intact. ) thought I would be able to use that. with the info you supplied I will rig something up... Thanks for helping out...

[boscoe99]

The key switch is designed to be connected to a harness that runs to the motor. Not directly to the motor itself.

It would be one short boat if the key switch connected directly to the motor.

[ttles714]

lol !!! A very short boat !!

But .... from your reply I understand it a lot better and understand what I have... thanks... your time is very much appreciated. Much of the information on this forum, and the input from its members, Especially Yourself and RodBolt is priceless. The information provides members with the ability to get back on the water and not loose days or weeks of boating time. In the North East good technicians are so busy this time of the year they just can't get to everyone in a reasonable amount of time. Our season is not that long, so a couple of weeks is a big chunk. So I will just say thanks to especially both of you for sharing, with others, that wealth of information you have locked up in your heads.

I have done a similar service with commercial laundry equipment and I know sometimes it can get very very frustrating trying to talk someone with limited abilities through a repair.