Late throttle response.

Not really sure what to title this but ill explain. :huh:

i have a piaggio NRG 50 2000 Model. When i turn the throttle it takes a while before the bike actualy starts to rev.

Any ideas as to what the problem is and how to fix it?

 

hmm heres a few things you could check
-spark plug
-air filter
-mabye petrol is dirty in the tank
-oil mabye change it to a better 1?

or mabye the idle screw needs adjusting?

 

is this pre-clutch engaging or slow to move off?

What happens if you open the throttle slowly? or the rear wheel is off the ground where no load is on the engine?

 

@gart, ill check those things

@Guns,
Same thing happens if you open the throttle slowly..and the same thing happens when the bike is on the stand (back wheel off the ground).

 

oh yea clean carb out to

 

cheers, will check spark plug first.
then clean carb & get some clean fuel.

thanks

 

Nobody mentioned worn out or heavy rollers? The main cause of bottom end flat spots.

 

not saying lighter rollers wouldn't help, as they free the engine up, but this is doing this on the stand, with relatively no load.

Surely variator weighting until the clutch bites is immaterial, and as the wheel is off the ground, it's virtually as if there is no belt. I suppose to eliminate transmission loss, if he has an electric start he could try with the belt off.

Have you looked at the rollers to see if they have squared off, that coupled with them being too heavy isn't going to help things.