fuel problem

[Dave Blaber]

I have a z200 txrc 2stroke 2004 model that does not power up above 3700 rpm any suggestions before I dispose of it in the deep next time I go out

[rodbolt17]

tset medium and high pressure fuel rails.

[Dave Blaber]

fuel problem

I swapped the vapor separator over to the other motor, now it does not power up over 3700 rpm and the other motor is perfect now , so the problem is in the vapor separator, I have put in a new fuel pump changed all the filters and the pressure regulator, have I got a dud vapor separator?

[Dave Blaber]

Its not the fuel rails,

[Dave Blaber]

Solved it was either the pressure regulator on the vst or the small black fuel pipe on top of the vst , I knew it was something to do with the vst

[99yam40]

monitoring the fuel (rail) pressures would have directed you to the problem a long time ago