Navi not starting, tried draining fuel, changing oil, tightening idle screw, last used a year ago
I bought a new Navi in early 2022. I have around 256 miles on it. Rode it a few times every year. Changed the oil in summer of 2024 and the other day, still have old gas in it from 2024 or 5. I charged a couple batteries, and they both crank and show the brake lights and turn signals, and when I try kick starting it, it doesn't do anything. The standard start just has a cranking noise. I drained around 3 oz of old gas- the first ounce was grey and slightly cloudy. I used a lot of rich fuel to start it in the springs and falls, and even changed the oil the other day (2nd oil change in 4 years). I checked the screen- no debris/metal shavings, and the oil was still clear from 2024, since I only rode it maybe 5 miles in 2025 after the 1st oil change. I've been able to use year old oil before, even 2 year old oil, but I think it's the spark plug- I used the stock socket wrench to access it, but I've been hesitant on pulling it out. I might buy a new one anyways. I have a new battery arriving- I changed out the old one a year ago- using just a lithium one, although it's starting capability is not as good. I'm thinking it might be a possible loose wire, but I think it's possible the jets are clogged. Wish it weren't so easy to jam- maybe a gas station that shares the pump for E10 gas with ethanol free, I'm not sure. The last time it started was around a year ago (Maybe early summer).