Bolt size for yz125 2000 Top cover on carburetor?

The anode rod on a hot water heater is usually located on the top. There's usually what looks like a bolt head that you can undo with a wrench to remove the rod. It will be directly on the hot water heater and won't be part of the water lines running in.


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There should be an access area that is covered by a removable cover. Remove the fasteners by either pulling a part in the center first if it has that style, If it is a smooth flat head about the size of a nickel, just pry it off. These sometimes break but can be found at your local auto parts store.

Hi, most screw cap carbs only need the top cover ring nut to be hand tight. If your carb is uses screws to hold the top down these only need to be tight enough so the top does not come loose. I would add that the term for small screws/bolts is to nip them i.e. lightly turn until firm then just a very small twist of the spanner/screwdriver less than 1/8 turn.

check with the manufacturers website for the correct information
or your owners manual

Instructions

1. • 1 Lift the CBR onto its center stand. Unlock the seat latch with the ignition key and remove the seat. Remove the clip screws from the top portion of both seat rail covers, positioned below the fuel tank and the seat, using a Phillips screwdriver. Pull the seat rail covers away from the motorcycle's frame.
     
   • 2 Remove both bolts from the front of the fuel tank, using a socket wrench and a 10 mm socket. Lift the tank up and prop it open using the support rod on the motorcycle's frame. Reach under the tank and unplug the fuel pump's wiring connector and all three hoses from the bottom of the tank. Take note of hoses' locations before removing them for reinstallation purposes. Pull the hairpin clip out from the support rod's base. Unscrew the pivot bolt from the base of the fuel tank, using a 10 mm socket. Lift the fuel tank off of the motorcycle.
     
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   • 3 Unscrew the air box's mounting bolt from the frame's right seat rail, using a 10 mm socket. Loosen the clamps securing the air box's flanges to the carburetors' inlets, using a Phillips screwdriver. Pull the air box towards the rear of the motorcycle to separate its flanges from the carburetors.
     
   • 4 Loosen the clamps securing the carburetors to the motor's intake manifolds, using a Phillips screwdriver. Pull the carburetors off of the motor and out through the left side of the motorcycle's frame. The carburetors will still be attached to the motorcycle by its throttle and choke cables. Loosen the choke and throttle cables' lock nuts, using a 10 mm wrench. Remove the cables.
     
   • 5 Hold the carburetors over a large container. Unscrew the drain screws on the side of each carburetor's float bowl, positioned at the very bottom of the carburetor, using a flat-head screwdriver. Allow the fuel trapped within the float bowl to drain completely, then tighten the drain screws.
     
   • 6 Flip the carburetor over, with the float bowls up, and place it on a clear work space. Unscrew the bolts from the float bowls, using a Phillips screwdriver, then pull the float bowls and their gaskets away from the carburetors.
     
   • 7 Unscrew the pilot jet from each carburetor, using a flat-head screwdriver. The pilot jet is placed to the left (with the carburetor facing you) of the main jet in the center of the carburetor. Screw a new pilot jet into place with a flat-head screwdriver.
     
   • 8 Reinstall the float bowls and their gaskets onto the carburetors. Tighten the float bowls' screws with a Phillips screwdriver. Reattach the throttle and clutch cables to the carburetors and tighten the cables' lock nuts with a 10 mm wrench. Slide the carburetors through the left side of the frame. Push the carburetors into the motor's intake manifolds. Tighten the intake manifolds' clamps with a Phillips screwdriver.
     
   • 9 Pull the air box against the carburetors and push the air box's flanges over the carburetors' inlets. Tighten the flanges' clamps with a Phillips screwdriver. Screw the air box's mounting bolt onto the frame's right seat rail, using a 10 mm socket.
     
   • 10 Lay the fuel tank onto the motorcycle's frame. Insert the tank's pivot bolt through the hinge at the base of the tank. Screw the pivot bolt's nut into place, using a 10 mm socket. Lift the tank up and reattach the tank support rod to the motorcycle's frame. Insert the hairpin clip into the support rod's base. Prop the tank up on the support rod. Plug the wiring connector into the fuel pump and reconnect all three hoses onto the bottom of the tank. Screw both mounting bolts onto the front of the fuel tank, using a 10 mm socket.
     
   • 11 Mount the seat rail covers onto the motorcycle's frame. Insert and tighten the covers' clip screws, using a Phillips screwdriver. Lay the seat onto the seat rails, then press the rear of the seat down until the seat latch locks into place.
     

belt slipping? or engine??

Remove the handles, then remove four 8MM bolts from the bottom securing the engine case. The entire assembly will then rotate upward,
allowing you to remove the two 8MM nuts and carburetor.

You will need to remove the carburetor and clean. Be sure to clean the high speed jet. This jet is the bolt that holds the fuel bowl on. Remove and clean the small holes in the sides of bolt. You will need a small piece of wire or bread tie just remove the outer covering and run this through the holes. Some have a hole in the bottom and smaller hole in the threads towards the top. Clean with carburetor cleaner and blow with compressed air. Try cleaning the jet first and if this doesn't work then clean and rebuild entire carb. Hope this helps.

Make sure all the small holes that are in the brass bolt that holds the float bowl on the carburetor are clean and clear. Use no metal objects to clean it. You should find holes in the bottom of the bolt and along the top on the non-threaded part. This bolt is also the main jet of the carburetor.

They are called "rocker box top cover bolts", I guess because they hold the top cover of the rocker box on. The size is 1/4 in X 20 tpi. I don't know how long they are though. I've had hundreds of them out but never measured one. Just guessing, I'd say about an inch long but what I'd do is take one out and measure it. Once you have the measurement, put it back in and torque to 100 inch pounds. When you get the new bolts, replace them one at a time.