Yamaha F225 Gauges questions

Bloodweiser

Well-Known Member
Joined
Feb 10, 2020
Messages
650
Reaction score
168
Points
43
Age
51
Location
Northern Cal
Model
Seafarer
Need some help in figuring this out, Ive tried the internet but no success.

My boat is a 1997 228 with a 2002 F225

My question is related the the Yamaha dash gauges. I was able to speak with the previous owner and he says these gauges were for the old 2 stroke that was previously on the boat. Though they seem to function , I question them now as to fully doing/monitoring what they are supposed to be ( 2 stroke compared to 4 stroke). For Example the oil icon always has a solid bar over it ( sorry no picture) the icon never blinks and no alarm sounds, but it never goes away.
I have not removed the dash to verfiy any PN's yet,
With all that If these are two stroke gauges, what gauges do I need, or am I ok to keep using them??

does that make any sense?

thanks

Blood
 

Captseahook

Member
Joined
Oct 10, 2013
Messages
7
Reaction score
1
Points
3
Hey , did same engine swap on my Sailfish , OX 66 to F225 , 2 stroke tachs will work but have different functions . New tachs are plug and play, hope this helps. C Hook
Yamaha New OEM Multi-Function Gauge Tachometer Tach 6Y5-8350T-D0-00
 

gmundy456

Member
Joined
Feb 24, 2020
Messages
5
Reaction score
2
Points
3
Age
35
Model
Sportsman
Need some help in figuring this out, Ive tried the internet but no success.

My boat is a 1997 228 with a 2002 F225

My question is related the the Yamaha dash gauges. I was able to speak with the previous owner and he says these gauges were for the old 2 stroke that was previously on the boat. Though they seem to function , I question them now as to fully doing/monitoring what they are supposed to be ( 2 stroke compared to 4 stroke). For Example the oil icon always has a solid bar over it ( sorry no picture) the icon never blinks and no alarm sounds, but it never goes away.
I have not removed the dash to verfiy any PN's yet,
With all that If these are two stroke gauges, what gauges do I need, or am I ok to keep using them??

does that make any sense?

thanks

Blood


I just bought a '98 GW Sportsman which sports a 2 stroke '98 Yamaha. I am needing to replace the gauges and might be interested in your tach and speed multifunction gauges if you are replacing them.
 

glacierbaze

Well-Known Member
Joined
Jul 6, 2012
Messages
2,348
Reaction score
599
Points
113
Age
75
Location
Chapel Hill and Pine Knoll Shores, NC
Model
Seafarer
If I recall, there are dip switches on the back of at least some of the Yamaha gauges, that have to be changed going from 2 stroke to 4 stroke. Or, maybe they are only for the number of cylinders, but they are there for something.
 

Bloodweiser

Well-Known Member
Joined
Feb 10, 2020
Messages
650
Reaction score
168
Points
43
Age
51
Location
Northern Cal
Model
Seafarer
Thanks for the responses, its confusing part# 6Y5-8350T-D0-00
If I read it correctly says its for both 2 and 4 strokes?
Digital Multifunction Tachometer displays engine RPM, trim angle, oil level (two stroke), oil pressure (four stroke) overheat warning, trip hours (resettable) and total operating hours. Replaces prior part number 6Y5-8350T-83-00.

  • This Digital multifunction tachometer is for 1996 & newer 40HP - 300HP 2-stroke and F25 - F250 4-stroke.
  • It will install in a standard 3 3/8 diameter gauge hole and provides engine RPM, trim angle, oil level, warning lamps, overheat warning lamp, hour meter for trip, reset able and total operation hours.
  • *2005 and newer Yamaha outboards that use the one plug trim and oil harness may require a 6Y5-85335-00-00 adapter harness in cases.*
SKU#: 6Y5-8350T-DO-00

what am I missing here? is it one and the same
 

Bloodweiser

Well-Known Member
Joined
Feb 10, 2020
Messages
650
Reaction score
168
Points
43
Age
51
Location
Northern Cal
Model
Seafarer
Does having the bar over the oil icon mean I have oil pressure or that my oil pressure is low ?
 

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,149
Reaction score
1,312
Points
113
Location
NYC
There are switches that need to be set for the motor type, number of poles and trim sensor
 

Attachments

  • 6Y5 settings.jpg
    6Y5 settings.jpg
    223.5 KB · Views: 19
  • Like
Reactions: ScottyCee

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,149
Reaction score
1,312
Points
113
Location
NYC
I am not sure about the oil indication for 4 stroke but in general a blinking bar is a LOW condition. To find out, just turn on the ignition without starting the motor and see what the gauge displays after self test. If the oil bar is blinking but goes solid when you start the motor, I would think the pressure is OK ( assuming the sender is wired into the harness. You should be able to download the user manual for your model, just pick a year that the 4 stroke was standard and was equipped with the round gauges. The meaning of the displays should be in that doc.
 
Last edited:

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,149
Reaction score
1,312
Points
113
Location
NYC
FYI. The oil indications for a 4 stroke won't be correct if the switch is not set to 4 stroke.
The trim sensor is easy to select. It will either be correct or not!

The poles switch is also easy to check for the correct setting. Assuming the 2/4 stroke switch is set, the rpms will either be correct or off by a factor of 2 (6 poles vs 12 poles)
So, make sure the 2/4 stroke switch is set correctly first
 

Bloodweiser

Well-Known Member
Joined
Feb 10, 2020
Messages
650
Reaction score
168
Points
43
Age
51
Location
Northern Cal
Model
Seafarer
This is what I have.
 

Attachments

  • 20200227_115837.jpg
    20200227_115837.jpg
    1.2 MB · Views: 30
  • 20200227_115811.jpg
    20200227_115811.jpg
    1.3 MB · Views: 28

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,149
Reaction score
1,312
Points
113
Location
NYC
Those gauges are not the same ones I referenced, What is that yellow thingy? Is it a switch or a plug that can be removed?
Heck it might be the mount for the gauge light.There seems to be some lettering around that thing. Is it a rotary switch?
 
  • Like
Reactions: Bloodweiser

Bloodweiser

Well-Known Member
Joined
Feb 10, 2020
Messages
650
Reaction score
168
Points
43
Age
51
Location
Northern Cal
Model
Seafarer
Labeled 4 6 8 12
It does rotates around.
 

Attachments

  • 15828438088846081404756017464116.jpg
    15828438088846081404756017464116.jpg
    1.4 MB · Views: 15

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,149
Reaction score
1,312
Points
113
Location
NYC
I would imagine that is a switch to set the number of poles but it seems like the gauge doesn't know 2 stroke from 4 stroke. So you may be able to get the revs to display correctly by trying the different settings. The oil may or may not work, I really don't know. I have been trying to locate a manual or install doc for the older gauges but haven't been successful so far.
 

Bloodweiser

Well-Known Member
Joined
Feb 10, 2020
Messages
650
Reaction score
168
Points
43
Age
51
Location
Northern Cal
Model
Seafarer
Seasick

thanks for looking into this. I am thinking the best option is to order the correct or newer gauge, pn 6Y5-8350T-D0-00 . thoughts?? from reading I think this new gauge should plug right in to my existing harnesses.
 

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,149
Reaction score
1,312
Points
113
Location
NYC
Before spending several hundred on new gauges, play with the old ones. You said they do work so do what I said about testing the oil display. I am thinking it may also work. Same goes for temp alarm. You have nothing to lose ans I am certain they won't harm anything
 

seasick

Well-Known Member
Joined
Aug 19, 2008
Messages
9,149
Reaction score
1,312
Points
113
Location
NYC
Let us know what you find out. I myself am curious!
 

PNW_Drifter

Well-Known Member
Joined
Oct 20, 2019
Messages
407
Reaction score
158
Points
43
Location
Seattle, Washington USA
Model
Seafarer
Your gauges are really old. Probably from early 90's. I had same on on my 1992 yamaha 90hp. We were expecting the next two stroke generation gauges. 4 Strokes didn't exist when those were made. I doubt you can get any sort of oil pressure from that. But tach and trim may work. If oil pressure is important ebay if full of gauges. Also try googling the part number you have.
 

Bloodweiser

Well-Known Member
Joined
Feb 10, 2020
Messages
650
Reaction score
168
Points
43
Age
51
Location
Northern Cal
Model
Seafarer
Yea, I went ahead and replaced that gauge with this one 6Y5-8350T-D0-00 plugged right and is working as it should.
 
  • Like
Reactions: Captseahook