There should be a reservoir under the seat. Keep this topped up with 2 stroke oil. It will last ages but do remember to check occasionally as running without will screw the engine. Best way is to always keep some oil in stock, if you empty a can buy another straight away so you NEVER run out.
HTH
www.yamaha-motor.com/.../lit-11626-18-30_108...
Yamaha Motor Company1st Edition, April 2004. All rights reserved. ... GINNING RIDER. DO NOT REMOVETHESE ITEMS UNTIL THE ADULT SUPER- ... may leak out of the carburetor or fuel tank. 5. ... Removal of this plate adds to the ..... side of the engine on top of the crankcase. 1. .... Throttle Check for proper throttle cable operation 5, 12. Air filter ...
? 3:03
https://www.youtube.com/watch?v=M5Pe6YH6l3c
Apr 18, 2012 - Uploaded by fupabox
Checking out the slider,choke,and fuel flow on a 2002 Yamaha PW 50 ... Top comments ... the idle speed adjustment is either too low or the carb is gummed up...with it ... get full throtle and it just boggs any suggestions on what i shud do ... Yamaha PW 80- First Start in Years - Duration: 7:26. by Alex's Bikes ...
Remove the old one and install the new one. Mind all lines and cables are properly attached and secured, and that there are no leaks in either the inlet or outlet of the carb. There is a lot more to it, but with such a vague question... well...
This is a highly ill - eagle act to do. In the old days we would put an electric drill on the drive cable, but now they make them tamper proof so they only go one way. The bezels are crimped on so you can't get inside them. I expect modern one may be electronic. How will your insurance company know what mileage you have done? I have never known an insurance cancel or fine due to mileage. You should have just disconnected it when you got close to the limit.
Buy a used one and use them for 6 months in turns. There are two or three here 23K and one with 36k
https://www.google.com/search?q=2002+yamaha+sr125+speedometer
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First make sure that the new battery has been fully charged and is not defective. Next make sure that the proper voltage is reaching the started. You may have a bad post connection or loose connection at the starter. Try jumping you battery with another known good battery.
What Exactly does the bike do when it 'loses power'? This will give clues as to where the issue could be. When was the last time the bike was given a major service? Sometimes it can be as simple as a dirty fuel/air filter or an old/worn or dirty spark plug.
Are you wanting the size of the hex bolt head or the thread size and bolt length? Most oil pan plug bolts are either 17mm (5/8th socket) or 19mm (3/4" socket) bolt heads.