B737 MAX Series Undifferentiated
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Flight Crew Last 90 Days 20; Flight Crew Total 6094; Flight Crew Type 2614
Situational Awareness; Confusion
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Flight Deck / Cabin / Aircraft Event Other / Unknown
Air Traffic Control Provided Assistance; Flight Crew Overcame Equipment Problem; Flight Crew Became Reoriented; Flight Crew Requested ATC Assistance / Clarification; General Flight Cancelled / Delayed
Aircraft; Human Factors; Procedure
Flew a 737 Max from ZZZ-ZZZ1.  During single engine taxi to [runway]; called for the delayed engine start with what I thought was enough time to reach runway at a normal pace and fully prepare for takeoff.  I even briefed the need to take into consideration the slow engine start cycle as part of the workload management process.  The engine start process took so much time that we were finishing checklists (at a normal pace) when we were cleared to line up and wait.  The checklists were complete and the FO (First Officer) and I both agreed that we were ready for takeoff prior to takeoff clearance.  As we took the runway; an LCA (Line Check Airman) on the jumpseat pointed out that the 3 minute warm up time was not complete.  We asked the Tower for 30 seconds on the runway and then took off.  The rest of the flight was normal. While the buck stops with the Captain; there were a few factors that led to this inadvertent deviation.  This leg was my 3rd in the Max.  This was a threat that was briefed in preflight.  While I knew we needed more time for the engine to start; it was much longer than I planned for.  Additionally; the FO did not start a timer after the engine start for some reason.  Because the FO did not call out that the warm up time was not finished; it was forgotten.  What I took away from this event was that the start sequence on the Max takes at least 6 minutes - approximately 3 for the start; and 3 to warm up.  Another take away is that even though FO's normally track this time and report it as necessary; I need to monitor this much more closely.
B737 MAX Captain reported failure to allow engines to warm up for three minutes prior to takeoff. Captain elected to request additional time for position and hold prior to takeoff.