2015 Yamaha Limited S problems

[Mech4niq]

Hello folks.
I have a 2015 242 Limited S which is giving me problems. Looking for a shop to take it to (or maybe just advise on how to proceed here), perhaps someone knows a good place. Im located in New Jersey. I have had a tough time getting the Yamaha authorized dealer to take my boat.

Long story: Last year, at the start of the season, Connect screen started displaying CAN 2 and 4 errors (most peripheral equipment not working, ie. lights, bilge, blower etc). At the same time when turning the ignition on, the Port tach does not sweep, and does not work with engine running. Additionally the port engine is misfiring and will not rev with throttle.

I checked and replaced batteries (one was leaking voltage). I replaced the spark plugs on the affected engine (even the old ones were in good shape). I checked fuses but found none blown. I inspected harness and connectors for any damage or deterioration but found no breaks, or corrosion.

Additionally I ordered a Port tach from boats.net in August 2024, which remained on back order until January 2025 when the order was canceled with a note that this part has been discontinued (smh).

Help
Thanks

 

[Mech4niq]

Found a repair shop for gauges Coastal Gauge Repair and sent them my port tach to attempt a repair.

I had a conversation with the owner who told me a lot of these Yamaha jet boat gauges are failing recently. Apparently they were made by a company in the US and he even attempted to get wiring diagrams for the gauges but he struck out. Crossing my fingers.

 

[Neutron]

Found a repair shop for gauges Coastal Gauge Repair and sent them my port tach to attempt a repair.

I had a conversation with the owner who told me a lot of these Yamaha jet boat gauges are failing recently. Apparently they were made by a company in the US and he even attempted to get wiring diagrams for the gauges but he struck out. Crossing my fingers.

You should post where you are located if you are looking for advice on where to take it

 

[Mech4niq]

Good point. I'm located in New Jersey.

 

[Mech4niq]

Coastal Gauge Repair guys returned my gauge replacing some capacitors but no dice. Still getting the same symptoms: House switch ON and the port gauge is silent while the starboard gauge pings down while buzzing but after a while starts sweeping constantly right to left and back (even with ignition switch in off position)
Any tips on where to take my boat in vicinity of NJ would be appreciated.

 

[Mech4niq]

I spoke to Yamaha customer support regarding the lack of replacement parts and was pretty much told that the port side tach gauge ( F3F-U8245-40-00 ) is no longer being offered because "the supplier stopped making it;" there is no replacement. My 10 year old boat is junk at this point unless I can source the gauge. smh

 

[Neutron]

I spoke to Yamaha customer support regarding the lack of replacement parts and was pretty much told that the port side tach gauge ( F3F-U8245-40-00 ) is no longer being offered because "the supplier stopped making it;" there is no replacement. My 10 year old boat is junk at this point unless I can source the gauge. smh

I love Yamaha but i cant stand that they discontinue parts way to early