I HAVE A 2006 ETON VIPER 70 4STROKE ,IT IS LIMITED TO 10MPH ,I HAVE ALTERED THE CDI SETTINGS AND THE THROTTLE SCREW ITS STILL THE SAME 10MPH AND VERY LOW RPM ,I PUT A NEW CDI ON AND ITS STILL THE SAME .I HAVE HAD THE CARB CHECKED AND IT IS FINE ,I REALLY NEED HELP WITH THIS ONE ,HAS ANYBODY ANY IDEAS THANKS

 

Ignition and Fuel Delivery usually covers all the bases; but, maybe severe exhaust resrtiction / blocker plate?? If CDI unit is from Eaton, maybe it is programed with the same RPM limiter? Other non Eaton CDI's might be found on Fleebay Stores: "Chinese Motor Parts" & "Quality Deals and Surplus" - Store Names. Good Luck.

 

THANKS FOR YOUR HELP, I WILL CHECK THE EXHAUST FIRST .I DONT THINK YOU CAN BUY A AFTERMARKET CDI YET FOR THE 4 STROKE THANKS GARY