my bike doesn't accelerate more than 55mph - need advice what could be wrong here!

Hi Guys

I'm new to this group. So please bear with me.
When I rode my Kawasaki ninja 500R today, it wouldn't let me go more
than 55mph no matter how much I accelerate. I usually ride upto 75mph
on this but today it was behaving weird. Please advise what could be
wrong. I will be taking it down to the mechanic tomorrow but I wanted
to save a few bucks if I could....

thanks

 

Your mother turned on the governer when you wern't looking.

Ted

 

The left-handed thrunge sprocket is interfering with the 55mph mark on
the speedo dial and throwing the backlash regulator into reverse.

Change up a gear.

 

How old are the spark plugs? After about 8,000 to 10,000 miles, they
should be changed. The center electrode erodes to a rounded shape and
the spark plug needs more voltage to fire. It should cost you about
$5.00 or $6.00 for two new spark plugs, unless you can get a good deal
on the right parts from an automotive parts store.

I stay away from the motorcycle $tealer$hip$ if I can get parts any
other place.

If you are in a financial bind, you can use a thin file to make the
center electrode flat again and you can re-gap the spark plug, but it
won't work as well as a brand new spark plug.

Also, the idle mixture circuits in your carburetors might be getting
plugged up with gum and varnish. I recommend putting about 4 ounces of
Berryman's B-12 Chemtool Choke and Carburetor Cleaner into a full tank
of gas about twice a year to clean the carburetors out.

If you live in a country where gasoline is called "petrol", look for a
carburetor cleaner that contains xylene, acetone, toluene, and methyl
alcohol. Fuel system cleaners intended for fuel injection systems don't
work as well, you want a cleaner designed for carburetors.

There is also the possiblity that your air cleaner element is really
dirty and is restricting air flow.

 

Hello just4:
If the engine is not running rough, missing, or backfiring, and runs
smoothly to 55, then I would suspect too much back pressure in the
exhaust system. Did you pack your own mufflers?

 

FFS.

 

You might want to make sure the choke's really off.