FZ1Nfan
New Member
Bought the bike a few weeks back, been great until a week ago. it has developed a serious missfire under load from just above idle to 3,600rpm after which it pulls clean and strong. to get it to not miss you have to be EXTREMELY timid on the throttle. It feels like it is dumping one and sometimes two cylinders it is not a consistant miss, it alway does it but at varying rates. Have replaced the plugs, old ones were pretty good, The primary TP Sensor tested out of specs so have replaced it today, didn't fix it. Bike is more responsive but miss is still there.
The only mod on the bike is a K&N air filter, still has stock exhaust. Doesn't show any fault codes. Any help would be greatly appreciated. Thanks
The only mod on the bike is a K&N air filter, still has stock exhaust. Doesn't show any fault codes. Any help would be greatly appreciated. Thanks