Trim Indicator on Yamaha Command Link Tach - Moderated Discussion Areas

  ContinuousWave
  Whaler
  Moderated Discussion Areas
  ContinuousWave: Whaler Repairs/Mods
  Trim Indicator on Yamaha Command Link Tach

search | FAQ | profile | register | author help

Author Topic:   Trim Indicator on Yamaha Command Link Tach

97dauntless17 posted 08-03-2009 02:40 PM ET (US)
My tachometer is working fine, but the trim gauge is showing max tilt all the time. It does not move. The dealer that installed my new motor put a new harness in, but he thinks that it is the gauge. Anyone have problems with this? Also, if the speedometer is connected to the vacuum hose nipple on the motor instead of where the transom pickup is, will this register the speed on the speedometer? The transom pickup is there, but doesn't need to be if I can use the pickup on the motor lower unit.
Thanks,
TH
Tohsgib posted 08-03-2009 03:11 PM ET (US)
Remove the transom one and keep the one on the engine. Tilt is either the gauge or the sender on the engine. Since gauge reads, my bet is on the engine side.
97dauntless17 posted 08-03-2009 06:11 PM ET (US)
Engine is brand new. Didn't work on the old motor, doesn't work on the new one. Harness between motor and tach is replaced with new Friday. Trim gauge still doesn't register. I'm stuck on this one. Also, WOT RPM was 5400 with a 13x19 pitch SOLAS 4 blade prop. Weight while testing was 1700 hull, 200 fuel, 450 3 people. Yamaha does not recommend a 4 blade prop for this motor, so what do y'all think I need to do? Do you think if I shed two people and run light on fuel, say 10 gallons, it would run more RPM? Yamaha states 5000-6000 and I know this is within that range, and the RPM at 115HP is 5500. Am I ok with the prop or should I go lesser pitch or 15x17 3 blade?
number9 posted 08-03-2009 06:45 PM ET (US)
From what you said, do you have a Yamaha 4-stroke EFI and the newer command link digital gauges versus the LCD? IF so, there is a procedure to zero out the trim indication with the motor full down during initial setup/programing. It's in the rigging manual.

97dauntless17 posted 08-03-2009 09:37 PM ET (US)
Sorry, it's the older LCD gauges. I thought they were all called Command Link..........It's the older gauge used with a new motor.
number9 posted 08-03-2009 09:51 PM ET (US)
That may make it easier. Check the three switches beneath the grommet on the back. The LH switch position is set depending upon if 2 or 3 wires from the trim sensor. My guess is it's down now and needs to be up. May explain why it never worked for you. If changing the switch doesn't help?
Tohsgib posted 08-04-2009 12:05 PM ET (US)
You should probably switch to a 13x19 3 blade prop which would fetch you a couple more hundred rpm. A 17 might make too many rpms, especially since you have not tested it with a light load. Personally I think trim gauges on outboards are useless. Turn around and look at it.
97dauntless17 posted 08-04-2009 12:38 PM ET (US)
Thanks y'all.......I'll give the back of the gauges a look. thanks for the advise on the prop too.

Hop to:

Contact Us | RETURN to ContinuousWave Top Page

Powered by: Ultimate Bulletin Board, Freeware Version 2000
Purchase our Licensed Version- which adds many more features!
© Infopop Corporation (formerly Madrona Park, Inc.), 1998 - 2000.

Author	Topic: Trim Indicator on Yamaha Command Link Tach
97dauntless17	posted 08-03-2009 02:40 PM ET (US) My tachometer is working fine, but the trim gauge is showing max tilt all the time. It does not move. The dealer that installed my new motor put a new harness in, but he thinks that it is the gauge. Anyone have problems with this? Also, if the speedometer is connected to the vacuum hose nipple on the motor instead of where the transom pickup is, will this register the speed on the speedometer? The transom pickup is there, but doesn't need to be if I can use the pickup on the motor lower unit. Thanks, TH
Tohsgib	posted 08-03-2009 03:11 PM ET (US) Remove the transom one and keep the one on the engine. Tilt is either the gauge or the sender on the engine. Since gauge reads, my bet is on the engine side.
97dauntless17	posted 08-03-2009 06:11 PM ET (US) Engine is brand new. Didn't work on the old motor, doesn't work on the new one. Harness between motor and tach is replaced with new Friday. Trim gauge still doesn't register. I'm stuck on this one. Also, WOT RPM was 5400 with a 13x19 pitch SOLAS 4 blade prop. Weight while testing was 1700 hull, 200 fuel, 450 3 people. Yamaha does not recommend a 4 blade prop for this motor, so what do y'all think I need to do? Do you think if I shed two people and run light on fuel, say 10 gallons, it would run more RPM? Yamaha states 5000-6000 and I know this is within that range, and the RPM at 115HP is 5500. Am I ok with the prop or should I go lesser pitch or 15x17 3 blade?
number9	posted 08-03-2009 06:45 PM ET (US) From what you said, do you have a Yamaha 4-stroke EFI and the newer command link digital gauges versus the LCD? IF so, there is a procedure to zero out the trim indication with the motor full down during initial setup/programing. It's in the rigging manual.
97dauntless17	posted 08-03-2009 09:37 PM ET (US) Sorry, it's the older LCD gauges. I thought they were all called Command Link..........It's the older gauge used with a new motor.
number9	posted 08-03-2009 09:51 PM ET (US) That may make it easier. Check the three switches beneath the grommet on the back. The LH switch position is set depending upon if 2 or 3 wires from the trim sensor. My guess is it's down now and needs to be up. May explain why it never worked for you. If changing the switch doesn't help?
Tohsgib	posted 08-04-2009 12:05 PM ET (US) You should probably switch to a 13x19 3 blade prop which would fetch you a couple more hundred rpm. A 17 might make too many rpms, especially since you have not tested it with a light load. Personally I think trim gauges on outboards are useless. Turn around and look at it.
97dauntless17	posted 08-04-2009 12:38 PM ET (US) Thanks y'all.......I'll give the back of the gauges a look. thanks for the advise on the prop too.