Originally Posted by
mattwoodcraft
my grp came alive after 2.5- 3 gallons had gone through it....
these motors like to run lean top end and fat on the bottom end ...
i had to play around with clutch set up and pipe befor i was completley happy with the motor but once its run in and its a different beast all together

running lean on top and fat on bottom tend to starve the motor of fuel it Needs on top end and you over compesate on the low end to get it to idle right with that Jacked down High speed and the Low speed being so far out......IMO ninja's and GRP's need a Fat top and lean bottom.