2025 rocket 3 prolonged occasional starting.

[Journeyman]

yes, that is correct, this happens and not sure why, as I have tried priming fuel injector until they stop priming and then give an engine start but it does that sometimes and there is no pattern in regards to temperature or anything else.

@imcool where are you at with checking/adjusting your valves? I'd be curious to know if that hard start continues after you've readjusted your timing. The timing being off could account for hard starts. Some of the bikes in this thread don't have many miles, but that doesn't necessarily guarantee that the timing is set as it should be and on older bikes, originally set properly, it could develop over time. Just a wild theory (one of many)...

 

[rick danger]

I'm pretty sure tight intake valve clearances make for hard starting.