Hi guys, I notice my ninja rpm would drop when idle. When I start the bike cold in my garage the rpm would be about 1500-1600 but after a few minutes it would slowly drop to 1200-1100. Is this an issue or normal? Thanks
My bike would do the cold start high idle normally, but right after that warm up, it would idle lower than spec, maybe 1000 rpm. Then once the bike was fully warmed up, it would idle 1500 where I set it. Usually this was fixed by adjusting my valve clearance, but since my bike is higher mileage, it needs it more often.
If your bike is at or above 20,000 miles, consider checking the valve clearance if your cold start process becomes a bit whacky, but sounds like yours is normal for now.