680 Rincon- Spark Plug Foul Question
Hey guys. I have a 2009 Rincon 680. For some reason, I have had 2 fouled sparked plugs in the past few weeks. When I remove the spark plug, it smells strong of gas and is blackened.
I have been using the recommended NGK IFR5L11. A friend today suggested to use the Autolite XP 3924. They are $6 each and I can pick them up at Advance Auto instead of paying $15 for the NGK at the bike shop. I've done my research and it does show the NGK and Autolite being the same plug just sold much cheaper at a non-motorycle shop.
Any ideas on what may be causing the fouled plugs? I keep the Rincon in an enclosed trailer. I just wonder if because the lack of air flow, should I roll it outside before starting. Both times the plugs have fouled, it's been from starting inside my trailer. It starts fine, when I put it in reverse and give it gas, it dies. This is the beginning of the end for this plug.
Any ideas or suggestions???