Help! Yamaha 130 v4

[Swampfire0079]

Good afternoon. I have a 1994 Yamaha 130 v4 that’s in limp mode. Water pump is working and oil reservoir full. No alarm. Cranks very easy and idles like a new one. Any help would be greatly appreciated

 

[racerone]

How did it run for you last season ?----Check spark.-----Must jump a gap of 3/8" ( 1 cm ) on all 4 leads.

 

[boscoe]

If it is in RPM reduction mode then the alarm should be sounding and the warning light illuminated.

Is the audible alarm known to be in good working order?

 

[Swampfire0079]

I’m not sure if the alarm works. It performed well one day and the next it was in limp mode and has been ever since. I’ve cleaned and checked everything I possibly can or know how to. It doesn’t have to run a certain amount of time before problem persists. When ever I crank it up it’s automatically in limp mode

 

[racerone]

Post the actual compression values here.----And does spark jump a gap of 3/8" on all leads?