Question¿¿¿

[Bert]

Those gears are for a 700 but the change in mph is the same for a 660 or whatever. One tooth in front is equal to 3 in back

Without any mods the top speed may not increase because the motor is underpowered for tall gearing & you have to account for wind resistance which eats up power

[exentix]

not without fenders  lol

[700rSE]

sorry for the late reply, it has a k&n airfilter and the guy i bought it from (not even a month ago) said he had is rejetted and cleaned the carb or what ever. 60mph=like 96-100 kph. also i got my reverse working. and thanks for all the replies

[Bert]

not without fenders  lol

At the track they say cut fenders are good for 5 mph 

[exentix]

so if i cut mine id be at like 25 

[Bert]

I can't bring myself to cut my fenders, they stop a little bit of stuff

[exentix]

ye ajust enough to justify not choppin em

[darkside94]

sorry for the late reply, it has a k&n airfilter and the guy i bought it from (not even a month ago) said he had is rejetted and cleaned the carb or what ever. 60mph=like 96-100 kph. also i got my reverse working. and thanks for all the replies

I would say pick yourself up a nice slip on exhaust because without an exhaust that k&n isnt really helping much. About what is your budget 

[Bert]

sorry for the late reply, it has a k&n airfilter and the guy i bought it from (not even a month ago) said he had is rejetted and cleaned the carb or what ever. 60mph=like 96-100 kph. also i got my reverse working. and thanks for all the replies

I would say pick yourself up a nice slip on exhaust because without an exhaust that k&n isnt really helping much. About what is your budget 

Slips ons have limited performance gains. The head pipe needs to be replaced for maximun performance.  A slip on will make it louder     I would spend the money once & do it right, find a pipe that meets your DB requirements.   

[Peelz]

sorry for the late reply, it has a k&n airfilter and the guy i bought it from (not even a month ago) said he had is rejetted and cleaned the carb or what ever. 60mph=like 96-100 kph. also i got my reverse working. and thanks for all the replies

Hey Krandall...he did. I am not sure what the mini hos did to this thread.

700rse:  Try speed sensor removal mod, if it does not change anything ,I would say go ahead and clean the carbs...new air filter. Adjust throttle cable, could be strectched, and too much play, but that is a long shot.

[Krandall]

oop, my bad. I musta missed that.

the only thing I can think of OTHER than the carb.. Is if the previous owner played w/ the gearing,

[700rSE]

he never said anything about changing the gearing. but you think its the carb? not that im a bit heavy for it so it doest quite do what its capable of? because i was reading some stuff and the 660s usually dont do more then 70mph(112-115kph) so maybe i just slow it down? thanks again

[Krandall]

I wouldn't consider 215lbs overweight by any means though.

[Peelz]

I wouldn't consider 215lbs overweight by any means though.

Hope not, I am right at 200. Mine is a clunker and still managed 73 with similar mods. Maybe problem is electrical.....does it sputter at full speed? If so, that is your speed limiter, just a guess.

[fastraptor]

If you are using smaller diameter tires than stock then you will be geared down and need to increase the front sprocket size or reduce the rear sprocket size  to go faster