no it runs smooth at 4000 rpm I bought 5 new plugs had a full passenger load and booted around for half hour and just when I thought it was ok it powered out ,I pulled each sparkplug boot and they where all getting spark so then I changed the the 6th plug with my best old one and it took right off .so is that just coincidence or is that one plug bad ? Anyway I know you are wondering about why only 5 plugs because I went to 4 automotive shops and the honda ,yamaha dealer on Sat and they had none, found 5 at the mercury dealer $17.95 each. [ouch] anyway got 7 plugs today 11.95 at the automotive shop will change plug and try tommorow,and let you know
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