This is related to my experimenting with E85 fuel, so this is not related to normal operation on gasoline.
As I've mentioned before, I've been running my bike on E85 and over time I've been working out the kinks. I've gotten it to run just as well except for one problem. I think I'm having pre-ignition.
When I start out on the bike, everything works fine. The idle works fine and the engine can be killed instantly.
Then after I've been riding for about 5 minutes, the engine gets to a point where when I disengage the clutch, the idle speed is way out of control. It revs extremely fast and the kill switch won't kill it. The only way to kill the engine is to turn on the choke and turn the fuel off(I have to do this quickly so I don't eff up my engine). I know that the kill switch isn't the problem because I once yanked off the plug wire and the engine somehow kept going.
I know it's not the throttle and I know it's not an air leak. I'm using an NGK B6HS spark plug.
My only guess is that the engine gets hot enough after a few minutes to light the fuel.
Anyone have any suggestions as to how I can solve this?
As I've mentioned before, I've been running my bike on E85 and over time I've been working out the kinks. I've gotten it to run just as well except for one problem. I think I'm having pre-ignition.
When I start out on the bike, everything works fine. The idle works fine and the engine can be killed instantly.
Then after I've been riding for about 5 minutes, the engine gets to a point where when I disengage the clutch, the idle speed is way out of control. It revs extremely fast and the kill switch won't kill it. The only way to kill the engine is to turn on the choke and turn the fuel off(I have to do this quickly so I don't eff up my engine). I know that the kill switch isn't the problem because I once yanked off the plug wire and the engine somehow kept going.
I know it's not the throttle and I know it's not an air leak. I'm using an NGK B6HS spark plug.
My only guess is that the engine gets hot enough after a few minutes to light the fuel.
Anyone have any suggestions as to how I can solve this?