I now have a Hot Rod Rhino

WV Hot Rod Rhino wrote:

is that indents on the inside of the cam plate..all 660s should hit at least 60 on a down hill or something is wrong

With the 660 cam plate is 54mph downhill about right?

No...it should be close to 60 with a aftermarket cdi and jbs sheave

im pretty sure mine wont hit around 60. it would have to be a pretty big hill everything on mine seems to be working great to

WV Hot Rod Rhino wrote:

you may have a compression or carb issue if you cant get full speed

Compression 175. Carb cleaned and adjusted. Going to try the camplate next. Maybe the carb needs to be rejetted?

I thought I should update this thread.
New camplate went in with no change so I ordered a Dynojet kit.
After Dynojet I reached 74 kms(46mph) on flat ground. Not bad I think as I am at 3500 ft.
Next I ordered a better fuel pump from Alba. Installed it yesterday and still got 74kms(46mph)
I plan on fine tuning the carb next although I don't expect I will see any more top end due to my elevation. It sure does get up and go now though.

I can get up to 55 mph and I ride at 9,200 ft.
660, Dynatec CDI, JBS Sheave, Orange spring, frictionless washers, 700 camplate and OD weights