My Suzuki GZ250 has a power problem… the bike is 2002 but has only 4500 miles and it has no power, first, second and third gear seems ok and can accelerate up to almost 40 miles but after that there is no power for more , forth and fifth gear stays the same speed and power and doesn’t seem that she want to go more basically after third gear there is no need to change gear because there is no power anyway … Does anybody had the same problem ? and how you find the problem and how you solve it ? I will appreciate any information about in my e-mail chrisandy@hotmail.com