New vfr

I have recently purchased an 04 vfr from a deceased vfr guys mom. She did t know much about the bike, but the guy kept good records of maintenance so I'll take that as a great sign. Bike currently has 63000 miles on it, and runs excellent, until this morning. I was cruising down the interstate @ about 90 to 110 mph, and the bike shut down for a few seconds then right back up and running. I exited about 4 miles after that, and upon downshifting from 2nd to first it shit down again, and would not start. Wouldn't even turn over. Its early in the day and I work nights, need to sleep, so gotta jump and rode the remaining 3 miles home. When I got home, I shut it off and started it several times with no problem. I have no tools @ my appartment, I'll have to have my dad come down with a meter and some things, I believe it points to battery going bad (it's a gel cell), but I've read some scary things about stator and regulators on here the last couple of days.

Also, I'm sure I posted this in the wrong place, forgive me I'm new to forums, and this whole tapatalk app is incomprehensible to me. Any help @ all is appreciated, as this is my main means of transportation since my car won't pass stupid emissions inspection. Thanks

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GrimOutlook welcome to the forum. Can you post a photo of the bike? Sometimes condition or mods can steer us in a certain direction.

I'm not sure a bad battery would result in dying at full speed. (Maybe?). If you do not have one get a battery tender (I like my Battery Tender Plus.) The battery should be charged and then load tested, particularly since it may have been sitting unused for a long period of time.

When the charged battery is on the bike you can test the battery voltage at idle and at 5000 RPM. This should be something in the 13V-14.5 volt range.

Get a Factory Service Manual. I know they have it in the downloads at vfrdiscussion.com, not sure about here.

Since the problem happened while shifting and the bike "jerks" at that time, it may be related to a motion triggered sensor, especially since when sitting in the garage you cannot repeat the issue. The completely dead system also points to an open circuit rather than a weak battery. Keep this in mind after you make fixes and you try to reproduce the issue. Now for some specific safety switch advice read this similar thread:

http://vfrworld.com/forums/showthread.php/50800-2002-vfr-quick-throttle-and-dies-quick-first-gear-take-off

Also of concern are the grounds. The bike runs long enough and if a ground is bad, the ground side slowly builds up voltage and the bike will stop working. Check the resistance from the negative battery terminal to the frame which should be zero. The bike has several ground terminal blocks, 18 or so wires in, one wire out to a ground point. Check the wires and clean the connections.

Next, after running the bike a while, open the gas cap. Do you get a "whoosh" sound? That could indicate a blocked hose, like a tank vent hose. After running a while the fuel pump can't pull gas as the vacuum in the tank is working against it. Lift the tank and check the hoses. Check the routing against the service manual. I think your problem is electrical, so this is just a double check of a common item.

What's going on with the car? Do you know what it needs?

 

Are you in Pittsburgh? I think I saw that bike clist for over a year.

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Since the bike wouldn't turn over and I assume you have lights and accessories, kill switch, side stand switch maybe.

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Thanks for responding guys. I have the factory book and it has happened 2 other times, always in the vtec, I did check the voltage when I first bought it and it was ringing around 13.9v, the lights and all works when it wouldn't start. The kickstand switch was hinky when I first bought it, and very rarely now when I kick it down into first of a startup of a ride it will cut off, I have been toying with eliminating the it, as I think it unnecessicary for a veteran rider, (as I do with several other safetys). I have a tender that it gets plugged into when it's able to be parked beside the house, as my shed doesn't have power. It has been on the tender since. 7 am and is only reading 80%. I k,ow that's not a diagnostic tool, but it really makes me wonder.



As far as I've seen it has a dynajet commander, micron exhaust, thefuse upgrade and a gear indicator and k and n air filter. And yeah its the one from Ohh craogslist

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My stupid phone won't let me view that link, so I'll have to get on the computer later, I will check it out

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The bike looks nice and clean, from this distance.

That's the owner's manual, which is good. You should get the factory service manual. Among other things it has an electrical diagram. vfrdiscussion.com may have a high resolution image of the electrical diagram as well that you can print out. I cannot remember what years they had this for, but I think 6th gen bikes.

You may have caught it. Aside from the switch the kickstands can lose a bolt, get lose, the springs lose their tension, etc. A hard braking or downshift braking could force a loose kickstand down, or maybe when you're shifting just a light bump will drop the stand. Then it would start right up. As you hinted, you can bypass that switch as a test.

The other thread also talks about the neutral safety switch with regards to this problem when shifting.

 

Replaced battery, it failed load test as I figured it would. Reg is puttin 13.7@ 5000 rpm. Stator leads look great, grounds are ok, hell this thing is almost as clean under the plastic as outside. I did find this thingy under the seat, while looking for the power commander, is this the dynojet version?or is it something to do with the gear indicator? Or what? I'm going to have to check all my papers on the bike too. Fyi this is my first ever experience with fuel injection so I'm a little lost...

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Your voltage is very low @5000 RPM. It should be at least 14v+ (the average i see it at is usually between 14.2v to 14.8v. Please look for the thread titled "THE DRILL" and follow that to diagnose your charging system.

THAT SAID - I suspect that you have a bad ground. I would go through all your ground wires, make sure they are clean, and bolt them back to the frame / engine.

Also check that the crimps on your battery leads are good.

That gadget with the "SH" on the back - that's a Speedo-Healer.

The "manual" you have is just the owners manual, it is NOT a factory service manual. THIS is an OEM factory service manual: http://www.ebay.ca/itm/2002-2004-Ho...ash=item488db606bc:g:AnwAAOSwdWBXPMoW&vxp=mtr