Operation Bright Spark: Debrief!
Before: My bike was a bugger to start cold. The engine would turn over slowly. Idle was rough. And 5 and 6 gear cruising was almost impossible as it just wasn't happy sitting between 3-5k rpm. Don't talk to me about carb farts! Having no previous v twin experience I figured this was just how they were; rough and lumpy.
After: So this afternoon I had my first ride since doing the stick coil mod/upgrade over the weekend. It's like a totally different bike! Engine turns over at least twice as fast. Starting is so easy now. Idle is smooth. The pickup when opening throttle is much better. Overall the best way to describe the difference is smoothness. The engine now cruises along in 5th and 6th quite happy.
I will add that I replaced the plugs at the same time. It had NGK Iridium plugs which had seen better days and I replaced with the same. Also I fitted 2 new throttle cables as they were sticky and a HRC quick throttle while I had the airbox off. Grips were changed too to Renthal Medium Compound race grips.
For those thinking about doing this, don't hesitate - just do it! Honestly feels like I bought a new bike.