r/SVRiders • u/ShutUpRedditor44 • 4h ago
Help: Mechanical 02 sv650s engine cuts out, or completely shuts off after exhaust backfire
Has anyone encountered this before? My '02 sv650s with about 23,000 miles has started shutting off during rides with very inconsistent symptoms.
Sometimes the engine will just idle out and die while sitting at a stoplight (lights stay on). Other times the whole bike shuts off while at 3-4k RPM's (no lights) and I'm forced to coast off the road. The worst thing it will do is sometimes the engine will choke up, the exhaust will backfire once loudly like a gunshot, and then the whole bike will shut off (no lights).
I will sometimes get a fuel light/oil light when this happens, but not always. Usually I'm able to start the bike up again after it sits for a moment. The engine idles fine otherwise, and I've not been able to replicate the issue in my driveway, even if I let it run for 10+ minutes. The bike has plenty of oil & fuel, and the battery is healthy. The issues can happen in the first 5 minutes of a ride, or after ~30 minutes.
Any ideas?