Newbie Question - Lossing power on engaging any load

Hi,

I brought a 2nd hand bike (Kawasaki 2000 ZX2R) a few months ago. And I
had this problem with it every couple of months, I really hope someone
can at least point me to the right direction:

I star up the bike, it losses power when the motor and gear engaged.
What I mean is, I startup the bike, shift into 1st gear, give some rev
(even up to 8k), release the clutch slowly. When the gear engaged to
the engine, the bike doesn't move forward, instead, the rev drops very
rapidly and the engine stopped.

I don't have this problem very often. If I start it up, and it kicks
into 1st gear okay, I will have a joyful ride for the entire day. Only
once in a blue moon, it just play up. When it play up, no matter what
I do, it just won't give any power at all. Even if I leave the engine
on until it hot, its still loss power once engaged the gear.

I had some bike service centre checked the bike inside out, and they
didn't pick up anything at all.

Can anyone help?

Nath

 

What causes it to get its power back again? In some cases like this, you
need to either wait until it fails complately so you can test in a
failed state or replace components until the problem goes away. I'm
gussing you have a 12R, not a 2R or maybe this is a model I'm not
familiar with.

-paul

 

Hi Paul,

Its a 250, its a tiny bike that I have. What usually happen is that, I
ends up used up the battery (i.e. flat) by keep starting it up after it
died. So I pulled it back to my garage and charge up the battery. The
next day, it will usually be okay again. Sometimes I wonder if it is
becoz my battery is running low (coz I don't ride it very often)?!

Please do not hesitate to give me more suggestion, as I am fairly
frastrated with the problem.

Cheers
Nath

 

Sounds to me like it's not getting enough gas.
Check your cap vent and strainer.

 

Aside from the sidestand switch mentioned by another, the choice come
down to the carbs - are they clean - and the alternator. If you have a
weak battery that won't accept a charge easily, that can be the problem.
It can also be a failing stator.

-paul

 

Sidestand switch or clutch ignition interlock. Or both.

 

I live in Australia. I did notice some of the bike's safety features.
But I did not pay any attention to the side stand as I didn't know the
safety system even include the side stand (to be honest, this might be
the cause of my problem... ).

Thanks heaps guys. Really appreciate you spending time replying to my
post. You gave me a lot of ideas to look into. I shall check them
all.

Cheers
Nath