2 problems dont know if its normal

[Road_Clam]

Originally Posted by jack-_-hammer

On my old 600gsxr On a cold night or a summer day it would start right away, So just out of curiosity Is it normal for my Gz250 on a cold morning to take a while to start i usually have to put the choke which i know that's normal but i have to press the power button 5-7 times is that normal? Another thing is when i'm riding once the bike is warm. Is it normal for the bike to lose power while i'm on high revs? it usually does it 1st gear 2nd gear and sometimes 3rd gear once i get to 4th and 5th i dont really notice it. Just curious Previous owner had the bike sitting for 3 months. I once left my gsxr sit for 6 months and when i started the bike i didnt notice anything different. My friend advised me to use some carb cleaner i'm probably going to do that tomorrow.

Sounds like you are experiencing upper rpm lean out. Also sound like there is some blockage in the main needle jet. There is also a "questionable" vacume line connection that recieves vacume from the carb to the fuel petcock tap. If this connection at the fuel tap is "loose" the diaphram inside the fuel valve will not remain fully open and also cause upper rpm fuel starvation.