So my bike was running strong and now I have no throttle response. Normally the headlight comes on when I turn the key to the on position, before I start the bike. This is no longer happening. The bike will still start but I fight to keep it going with the throttle and there is very little response. Once the bike has fired the head light does come on but very weak.
I have changed out both spark plugs, and also bought a new battery. I am at a dead end to determine how to fix it.