born&bread yamaha
New member
I have a SRV 540 I freshly rebuilt, but I can't remember how the oil and gas line configuration was set up originally. I also need a look the throttle linkage. PLEASE HELP!
I'll get a pic for you tomorrow.
Ok, on the left side of the pump in the picture, the bottom line is the pulse line from the engine case below the mag side of the intake. The top line goes to the carb and the line on the right of the pump goes to the fuel pick up on the top of the tank.
On the oil pump, this line goes from the front of the pump up over the top and along the frame on the PTO side then to the nipple on the back side of the oil tank. This is also the line that should have the in line filter in it. Make sure this one is secured out of the way of the jack shaft or it will rub through.
This line, on the back side of the oil pump, goes to the nipple on the side of the oil tank. Again, secure out of harms way from the jack shaft. No filter on this one.
The two smaller lines go to the nipples on the bottom of each intake runner.
The throttle linkage is easy, the throttle cable barrel adjuster goes in the front and the oil cable goes in the rear.
Throttle;
Oil;
Throttle should be adjusted so there is a 2mm gap between the throttle block and lever before it actually starts to pull the cable.
Oil pump is adjusted by pulling the casing out of the barrel adjuster and measuring the amount of exposed cable. Should be 1 inch or 25.4mm from the top of the barrel adjuster to the bottom of the cable. The smaller this gap is, the more oil it will use and vice versa. DON'T FORGET TO BLEED THE OIL PUMP!
On the oil pump, this line goes from the front of the pump up over the top and along the frame on the PTO side then to the nipple on the back side of the oil tank. This is also the line that should have the in line filter in it. Make sure this one is secured out of the way of the jack shaft or it will rub through.
This line, on the back side of the oil pump, goes to the nipple on the side of the oil tank. Again, secure out of harms way from the jack shaft. No filter on this one.
The two smaller lines go to the nipples on the bottom of each intake runner.
The throttle linkage is easy, the throttle cable barrel adjuster goes in the front and the oil cable goes in the rear.
Throttle;
Oil;
Throttle should be adjusted so there is a 2mm gap between the throttle block and lever before it actually starts to pull the cable.
Oil pump is adjusted by pulling the casing out of the barrel adjuster and measuring the amount of exposed cable. Should be 1 inch or 25.4mm from the top of the barrel adjuster to the bottom of the cable. The smaller this gap is, the more oil it will use and vice versa. DON'T FORGET TO BLEED THE OIL PUMP!