Hi I'm new to the vfr I just recently picked up an 04 vfr800 it runs Good but it has the fi light on. code 19 not sure y because everything I've found says the bike shouldn't be running. I also found after looking at the wiring on the right side of the bike behind the lower fairing. it looks like something is missing there's three yellow wires that come threw the frame from the motor that go into jumper wires. when the bike is running the yellow wires get really hot wich causes a concern. Any help is appreciated .
Hi Ruffing Code 19 is a pulse generator fault and you are right, according to the manual it should not run. FI faults remain in a memory until they are cleared so maybe this is something that happened during a previous service that was rectified; my suggestion is to clear the memory and see if it comes back. Regarding the three yellow wires, these connect the alternator to the regulator/rectifier, and are a notorious weak point on VFRs. First step would be to clean the connector on that wire, but a better long-term fix is to cut it right out and direct solder the wires. The connector can corrode, that adds resistance and the connector can heat up enough to melt and let the wires touch and fry the alternator and/or the regulator/rectifier. Many here (me included) have fitted a voltmeter to keep an eye on the electrical system, the next weak point is the R/R which can fail in two ways, the best one is it just stops putting out enough voltage (13.5-14.5V) to keep the battery charged, the worst way is when it puts out excess voltage and boils the battery and any other unlucky electrical bits. The next preventative thing to do on a 6th gen VFR is to check the common orange or blue earth block under the top fairing where a whole lot of green wires terminate together, as these can also corrode and lead to poor earthing and a fun range of electrical gremlins. A common fix is to solder the bundle together and then run a single large gauge wire to a good earthing point on the frame.
Thanks for the reply Cadbury the previous owner must have bypassed the connector. As far as the code goes it won't let me erase it so it must be current.
