Bonneville America Forums Forums Technical Forums Performance Mods Engine stalling problem fixed....

EFI requires more skilled/sensitive throttle control than carbed bikes from 0 throttle to about 10% throttle. So yes, getting used to the bike is a big factor.

Low idle rate is also a big contributor to the stalling problem. Triumph recommend idle set at 1150rpm. Riders coming from a v-twin background often want to hear a lower idle rpm and also mistakenly think their torque power range begins lower than it does on the Triumph. Hence the stall. The AI contributes too because that kicks in below about 5% throttle and the transition between the AI a/f mix and the mapped a/f mix is not smooth (jerky).