2017 BRP 250hp starting issues

[Kirk64]

New to the site and hoping to get a little help here. I have 22hrs now on my 2017 2430 twin 250's. Suddenly the starboard engine is taking several tries to get fired. The port engine starts immediately, the starboard will turn over sometimes for 15 to 20 seconds before firing, many times the engine will partially hit causing bendix to disengage requiring re-initiation of start switch. Not certain if possibly plugs, fuel pump. O2 sensor, or other sensor. runs great once started. Any Ideas are greatly appreciated.
Thanks.....Kirk

 

[JetTech72]

Normally when an engine takes many turn to fire up, it's the camshaft position sensor that is defective, but a P0340 should normally be reported.
Is that happening on the trailer or at the dock? Is it happening on restart or on the 1st start of the day?