Yamaha YTZ250 Fuel System Explained Yri-Z 250 Fuel Pump

[@aaronkiss647]

Very well done thank you

[@reckless3008]

Thank you for this video I just got my tank so I'll be saving this to reference while I'm putting her back together 👌also do you know where I can get a fule bypass t

[@MrMarlowz]

Thanks for the explanation. My bike runs fine and will start fine but if it sits for a day or two it doesn’t want to prime unless I get it running with spray. Any ideas? Thanks

[@sawyercustom]

Typical Z rofl.. There are many factors that can cause that though. My personal ones did this till I got a top mount tank. Bleed back can be caused by old lines not sealing correctly, left over fuel weeping past the float needle pushing raw fuel into the crank valley leaving an air gap in the lines. sediment bowl gasket weeping, fuel pump diaphragms being faulty., It's really the nature of the beast. Most are like that and you can spend far too much time and money chasing this issue and never actually fix it. I've built over 30 z's and this is a very common issue even on fresh new builds. Technically when you shut it off there should be enough fuel left in the bowl to fire the next day, unless it's evaporating super fast. but with the Tri-z I have learned what should be and what is are 2 different things