2016 310X FI light comes on randomly

[ktyamaha36]

Hey guys,

Hoping you can help me out. My buddies 310X has 54 hours on it, and has been a great ski. Recently the FI light comes on and limits some of the power, but not much. Hes been pulling the key out and resetting it and it takes off again. Sometimes 10 mins, sometimes 30 mins of run time before it comes back on. It started running really rough and then wouldnt idle. We put a fresh set of plugs in today and it runs great again. Ran it for about 20 mins and thought we solved the issue and it came on again. Its idleing smooth and runs great though. Any Idea on where to start or what it could be? Ive read some posts where their power is limited to 3k rpms after the light but this is not the case. Thanks for any tips you guys can give!

[jetdave56]

Whenever the F1 comes on pull the lanyard the F 1 will still be flashing and hold the SET and MODE for 2 secs an actual code will come up , look it up in Service manual or tell us ... We'll go from there 👍

[ktyamaha36]

The code was for theSpeed sensor circuit. The only mods done to this ski are the exhaust filter delete and a R&D speed module. So I assume the R&D box is causing the issue here because I removed it and rode the ski for about 45 mins and got no FI light..... Is anyone else having issues from a speed fooler module?

[sirbreaksalot]

The code was for theSpeed sensor circuit. The only mods done to this ski are the exhaust filter delete and a R&D speed module. So I assume the R&D box is causing the issue here because I removed it and rode the ski for about 45 mins and got no FI light..... Is anyone else having issues from a speed fooler module?

common problem if not installed correctly.........