i would advies u to get these two things
Fastrax Fastrax Universal Engine Stopper Tool
http://www.cmldistribution.co.uk/cml_produ...ctId=0000001927
and
Fastrax Roto Start
http://www.cmldistribution.co.uk/cml_produ...alleryImage=2#G
on this website
my hyper 7 4 xmas had 3 problems with it in the first week n do not full power it until it has has at laest 8 tanks of fuel
n that is what i have done n siad