He just told me computer bad cost 600.00 to fix. First time fl light ran and idle fine. Would like to get ometer fixed dealer said relay o then again computer.

How do I tell which relay is bad. And will the ones that selling here will they work for each relay. The fl light comes on dealer told me had to replace the computer (600.00) to replace. How do I check to see what is making it come on. This is a 2003 trike 1800

The speedometer stopped working then it started back and stopped again what's up what do I do to fix ? also a f1 light came on what is this telling me? Throttle has been adjusted but real touche. If try to go SLOW but goes to fast.