
fuel starvation
fuel starvation
took my vtr dragbike for a test session at the strip on sat ran 11.0 but speed was down to 114 mph from 124 mph i had run previously, i was running without a air filter with 200 mains but had hesitation and feeling of the bike holding back at full throttle so rolled the throttle off and it pick up, so i thought too lean so replaced the air filter and rejeted to 190 so back to my settings when i ran with 124 terminals but the problem was the same
now thinking back the only other thing i did was put 2 inline petrol filters in the fuel pipes, are these bikes at the limit on fuel flow as standard ? if so im hoping this was the problem, so maybe a pump needed ?

Re: fuel starvation
You can fit a fuel pump really easily, but if you're going 2nd hand I'd suggest using a car one, they're available from breakers for pennies.
But the pipework from a VFR fits nicely, so I'm led to believe.
Try it; if you've put the air filter back to where you were and that's the only change you've made, there's your culprit.
But the pipework from a VFR fits nicely, so I'm led to believe.
Try it; if you've put the air filter back to where you were and that's the only change you've made, there's your culprit.
It's not falling off, it's an upgrade opportunity.