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RANCAP posted a topic in Earlier VFRsDear colleagues, My old 1998 VFR 800 FI, does not start if it is on normal vertical position. Engine starts only when the bike lays down on the side stand (thus bended on the left side). However, when the engine is operating on the side stand, it stops if I either change the beam position from low to high, or if I activate one or the other right or left side direction indicator. Same when I try to raise the motorbike up from the side stand position to the normal vertical position. The engine stops. It seems to be a ground issue. Have you guys experienced such kind of incident? any advises to share? Thanks. Alain
My '02 nearly left me stranded yesterday coming back from work. I was riding in the city at moderate speed when engine cut off completely without warning. I pulled over by the curb, put her back in neutral and tried to restart: the starter would crank but the engine wouldn't start at first. That's when I noticed the ABS light was flashing. I was about to call a tow truck when I tried to start again and this time it did. I rode for about 5 minutes before it cut off again. I noticed the fuel injection warning light coming on, but it went away after riding for a bit. So I managed to start again and then rode for about 10-15 minutes before it happened one last time (about 5 blocks from home), then I made it home. I'm obviously going to take it to a mechanic early next week, but just wondering if any others have had a similar problem, and what was the issue. Except for the ABS light flashing, all other conditions seemed normal: Engine temperature, oil / coolant levels, etc. The bike is an '02 with just a bit over 67,000 km on the clock. According to the maintenance log I keep (and the service manual) my spark plugs should still be good for another 15,000 km (I replaced them all 20,000 km ago). The only maintenance I've skipped is the second valve clearance check (7,000 km overdue) but only because it's a very expensive job to get done. For everything else I've followed the service manual like gospel. If you have any idea what this could be, let me know! EDIT: Forgot to mention that this happened over a 20-ish km commute.
My 98 VFR800, my daily driver-commuter bike with about 45k miles, has developed an issue and I'm hoping someone might have some insight that I've overlooked. On the way to work the other day as I was coming down the off-ramp, the FI light came on and the engine stalled. While coasting I pulled the clutch lever and tried to restart it, to no avail (starter turned, no ignition though). I ended up getting a flatbed ride home and started checking the usual suspects--fuel pump relay, main engine relay, relevant fuses, etc. I checked for voltage at the fuel pump, none, although the engine and fuel pump relays were clicking and sitting voltage was 12.1 volts. I also put the bike on the charger just in case it could be a low voltage situation but I was doubtful since it cranked so healthily. Just in case, I also put power directly to the fuel pump and it whirred solidly (and right after I plugged the harness back in the bike fired up for a one or two seconds, but probably because it had just enough fuel in the lines). I had a spare new old stock kill switch so I replaced that as well but no change. I tried a second bank angle sensor but no change. I've checked the side stand switch and that looks good (though a bit grimy). A couple of years ago, after having dealt with far too many R/R failures I put in a VFR-ness, a Mike's R/R, a fresh stator, and a dedicated fuse block for accessories. I hadn't had any further electrical issues until now. The grounds are all tight and based upon voltage measurements and the fact that the bike cranks so well, I'm inclined to believe the issue may be the ECM/ECU or harness, though based on my research, those don't fail very often. I also checked for codes but got nothing, FI light stayed solidly lit. Sometimes when I turn the key or toggle the kill switch (which I don't normally use) I hear the pump prime for a fraction of a second and sometimes if I toggle the kill switch to off, then hold the starter, then toggle kill to back on, I'll get a sputter (actual ignition) but no continued running and it's not consistent when i try this. I have a new fuel pump relay en route, just in case the actual installed environment is different than the test environment. The FI light stays on when the key is turned, both the engine and fuel pump relays click (measured voltage and felt each clicking on). I doubt it would be the ignition switch since power is getting everywhere else but like I said at the beginning, if anyone has any other suggestions of something I might have overlooked, I'd appreciate hearing from you. Otherwise I'm leaning toward hitting eBay for a used ECU/ECM...