im not sure our 660 from factory was wide open if you take the top off the throttle housing u can see the scre on the inside move your throttle and see if it hits the screw if so loosen the nut on the screw and back it out. hope this helps!

 

I seem to recall reading somewhere that that screw is only for use with children or
inexpierenced riders. The screw can be turned in to stop the travel of the thumb
throttle, which prevents the bike from going any faster then you want it to.
I believe it is on the WOT position from the factory.

Easiest way to check - loosen the lk nut and back the screw outalmost
all the way. Depress the throttle (with the engin off) and hold at WOT
thighen screw untill you fell it hit the throttle lever and then either back
off a 1/4 turn if you don't want it restricted or adjust accordingly to your
preference.

Good Luck!

 

Thanks guys, I check it out.



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Your owner manual should give a spec for the distance between the underside of the head of the screw and the body of the throttle housing.

 

My manual should be in tomorrow. It was missing when I bought the Grizz.


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X2 on the wide open for 660s. I checked the 700 manual for you and it says this:

ADJUSTING THE SPEED LIMITER

The speed limiter keeps the throttle from
becoming fully-opened even when the throttle
lever is applied to the maximum position.
Screwing in the adjusting screw stops the
engine speed from increasing.

1. Measure:
• speed limiter length Less than 12 mm (0.47 in)
Out of specification - Adjust.
2. Adjust:
a. Loosen the locknut 1.
b. Turn the adjuster 2 in direction b or c
until the specified speed limiter length is
obtained.
c. Tighten the locknut.

WARNING

• Particularly for a beginner rider, the
speed limiter should be screwed in completely.
Screw it out little by little as their
riding technique improves. Never remove
the speed limiter for a beginning rider.

• For proper throttle lever operation do not
turn out the adjuster more than 12 mm
(0.47 in). Also, always adjust the throttle
lever free play to 3.0 ~ 5.0 mm (0.12 ~
0.20 in).