My 2011 630 sm with 1200 miles, P/U, unrestricted airbox and fmf pipe. The bike will cutout and start lugging down while riding and the low fuel light comes on (plenty of gas in the tank) It usually only does it for about 5 seconds and then quits. The problem started about a week after the first service was done and when i was still running stock pipes. Has anyone else had this problem or know what it could be? maybe debris in the gas tank? or bad fuel?
Sounds like possible intermittent power to the fuel pump. I am assuming that the power to the fuel pump is also power to the level sensor. Maybe the fuel pump connector is not fully seated if the dealer had the tank off. Just some ideas. Cam.
Well i checked all the wiring (none melted) and the fuses and everything seemed to be fine until the ride home from work this morning. About halfway home it started the cutting out and low fuel light came on but this time it didn't stop, it lasted for a good 2 miles and then I noticed my headlight was flashing as it was doing this. Well after about another mile of riding down the road with headlight flashing and bike violently jerking as it can't decide to go or stall out, it finally picks up and takes off and the low fuel light turns off and all seems fine but then I notice my headlight is completely out. So I get home and now it won't crank and the fuel pump is sounding different then what i remember so im taking her in to the dealer. I hope it doesn't take to long to sort out this problem as I was planning a trip to the dragon in a week.
Voltage regulator, maybe? A voltage spike could pop the headlight, do weird things to the fuel pump and make your fuel sensor malfunction...
yea it could be that, guess ill found out soon enough as im dropping it off tomorrow morning. Where is the voltage regulator?
Got a call from the dealer today, the problem is the rectifier regulator. New one should be in next week.
Nothing like waking up and old thread. My bike just started doing this exact same thing. I was reviewing the wiring and everything looks good. I will have to focus on the VR. I wonder what other bike (as in better) VR would fit. The husky one looks an awful lot like my old CBR900RR one. Cam.
After some inspection I can see why the VR lived a short 1200km life. Its a Shindegen SH691-12. There is no dedicated ground cable and it relies on the frame to be ground and heatsink. A 10ga ground strap was the hot setup on my old CBR900RR to keep the VR alive, so I added one to the husky. Also the husky VR had no heat sink compound on it stock. When it put some on it turns out that the mounting surface is not flat and there is almost no contact, on mine anyway. After reading some info I think I will upgrade to a Mosfet type or a series type, either which will require a small bit of rewiring. The white wire is the new ground strap I added. White wires are faster. Cam.
AN F'ING FUSE! So far it has turned out to be one of the 20A fuses on the side of the start relay. Yeah go figure..crappy Italian fuses. I downloaded a troubleshooting guide from electro sport. One of the tests is checking for voltage drop between the red wire on the VR connector (+Volts out) and the battery positive. I had 9.3 volts drop!! The red VR+ wire goes directly to the white connector on the start relay, through the fuse and to the +battery lead to the battery. That is a test I likely wouldn't have thought of but it makes sense since there are a number of devices and connections between the VR+ and the battery where the voltage has to go. The fuse was not discolored or blown. I took it out and put it back in and was instantly rewarded with 14.38V charging voltage. Then I replaced them with some quality (chinese?) ones. Previously I diode tested the VR which passed nicely. This fix may be a coincidence so I will keep watching it. Incidentaly, when testing the running output of the stator I think it has to be disconnected at the round barrel connector by the Throttle body and measure there, open loop. When testing at the connected VR connector I never got nearly the voltage specified but it charges nicely now. Cam.
Another possibility to look out for is that sometimes the fuel pump may move past the clips that hold it in it's housing inside the tank. This will result in reduced fuel pressure. There is a thread on this forum for relating to a TE450 / TE510 I think it was that shows the problem and how to fix. (TE510 etc have the same fuel pump system as the 630)
In my case I had reduced battery voltage. It started when I had to ride home from work once and I coudnt see with all 3 lights on HB. I had 3V at the headlight. mekanik, where in the Kootenays are you? Cam.
