Originally Posted by
Bueller x2
I was thinking it wouldn't hurt to double check the spark plug wire connections and make sure all were tight. Both cylinders are firing but maybe something is loose.
I will also inspect the plugs to see if any are fouled. I understand the balance of the combustion triangle but with the backfiring/lean running I'm thinking its just not getting adequate fuel due to the TPS setting. If all checks out, thinking of trying a lower setting than 5.3 degrees to possibly gain more fuel as the throttle is turned. If that makes any sense?