How do you route fuel and vac lines when using fuel on/off valve?

[rks]

Easy enough to pull fuel line from barb on the carb, then open your manual petcock and check the flow rate. Could be some crud in the tank, restricting the flow.

I assume that you adjusted the valve gaps after installing your top end kit.

As Roscoe eluded.......no vac lines attach to the valve cover.....that is a breather hose, and must remain open.

[Jesush91]

Originally Posted by rks

Easy enough to pull fuel line from barb on the carb, then open your manual petcock and check the flow rate. Could be some crud in the tank, restricting the flow.

I assume that you adjusted the valve gaps after installing your top end kit.

As Roscoe eluded.......no vac lines attach to the valve cover.....that is a breather hose, and must remain open.

1。Fuel flow looks good but hell im not the scooter i dont know how much it needs. Im using a sintered fuel filter one of those see thru ones with the filtering filament being a ton of teeny little brass balls. I will remove the filter and see how that affects the scooter, will report results when i work on scooter after work today.

2。valve clearances for both intake and exhaust were set by me at .005" when i installed the top end kit.

3。i simply led a hose from valve cover all the way to somewhere above the gas tank as i saw thats what people do in place of installing an oil catch can.

[Jesush91]

So, i removed the fuel filter and connected fuel hose from tank straight to the carb and the scooter ran the same. Since fuel hose is see through, i saw that i was getting good flow of gas no bubbles in the libe so the filter i had in place wasn't restrictive and there appear to be no blockages of fuel to limit flow. So scooter will only start if i spray lubricating oil in the intake and keep the throttle engaged. If i let go at all, the scooter dies and will not restart unless i throw in another squirt of penetrating oil spray. Problem has me real confused especially since i invested a good chunk of cash on the top end kit plus in valuable time to carefully install it