Rigging 2004 Yamaha 90 former OMC Controls

[Chesapeake Explorer]

Just got a new 2004 Yamaha 90 2 stroke for my 17 Boston Whaler, It had a Evinrude 90. The boat has a Morse (teleflex Control) I have the following gauges and switches on the boat<br />Tach <br />Trim Gauge <br />Hour meter <br />Volt meter<br />I have a seperate trim switch that I rigged up not on the original Mores handle (it broke)Theres a nutral switch in the Morse control.<br /><br />I have the following with the new motor<br /><br />Key switch with kill switch 794 82570 08 00<br />10 Pin harness 6X3 8258A 00 00.<br /><br />Now checking it all out. It would seem I can hook up the nutral switch in the Morse control with the 2 brown 1 black wires from the new harness / hook up the teleflex cables to the new motor and be off (without gauges)<br /><br />If I am correct a second harness is needed for the trim gauge and oil gauge? Which If using Yamaha gauges go to the gauges or the digital Tach combo gauge<br /><br />I see digital tachs on Iboats but there's two of them a 6YRW0035 E0 00 for 232 dollars with 22 ft harness for the trim and oil ,and another thats 6Y5 8350T 81 00 for about 335 dollars and it needs another 130 dollar harness for the oil and trim gauge part. Whats the difference between these two digital tachs? Both look the same. They are both in the Yamaha parts section<br /><br />Should I go with the Yamaha 704 control? I see a 6 pin plug on the new wire harness..the color codes should be that of the nutral switch and trim switch, I should just be able to plug this in I take it. I guess I would need the Yamaha cables for the 704 control.<br /><br />I ordered and got the Yamaha factory manual for this 90C motor 75 dollars with 2nd day delivery.It came quick however I was real suprised as to how little info it has.. nothing about this stuff only a wire schematic thats of any help.. A far different bird then my old Evinrude factory manual which really details everything! I have heard good things about the Yamaha motor.

 

[rodbolt]

Re: Rigging 2004 Yamaha 90 former OMC Controls

thats about a correct assesment of the manual. we complained about them for years and years. about the best I can say is they are better than the suzuki and nissan/tohatsu.<br /> take my advice. scrap all the old controls/rigging. the 704 box has a nutral start switch built in it as well as a trim switch, provided you order the one with trim. I belive the 6y5 tach has the hour meter built in but would have to double check. the digital tach also has the visual warnings for overheat and oil alarms. make sure the keyswitch assy has a warning horn. you will need the trim harnes for trim indicate and the alarm system. if you buy the yam stuff its all plug and play. try to find a copy of the yamaha rigging guide. its better than the service manual for rigging. the control cables are standard 33 series cables. both cables ends have 10-32 threads.

 

[Chesapeake Explorer]

Re: Rigging 2004 Yamaha 90 former OMC Controls

I'll take your advice the old gauges are 15-16 years old and the trim switch on the Morse is shot I'll get the 704 control to get running with then this summer I will get the digital tach and harness. Keyswitch does have the horn. That rigging guide is only available to dealers..thats a strange way to operate to tell the truth,,but its better for the dealers who want to sell the rigging with the motors.

 

[rodbolt]

Re: Rigging 2004 Yamaha 90 former OMC Controls

call bill at B&T outboards in Moyock NC. he may have a few kits for sale at a discount. its in the phone book. tell him a tech in kitty hawk says hi.<br />he can even order the rigging guide for if you wish.