PCV is stuck in the closed position and I can not pull it out of place. I'm sure the plastic fins will break off if I pull on them. Suggestions on how to remove it?
Z250 is triggering the overheat alarm even though the telltale is pissing. Happened once while planed off and running. Then again while on the hose being flushed. Where to start investigating?
Last week when I was out one of my HPDI 250s suddenly lost power and dropped from 3800 to 2600 rpm. I've had this happen before so I went right to the Mystery Filters and changed those out. Test run and still only get to 2600 rpm. Diagnostic software shows 6psi on the low pumps and...
Engines still are not running correctly. Ran the Diagnostic found that fuel rail pressure is dropping down from 1000 to 500s or less after running for a minute or two. I'm getting plenty of flow through the mid fuel canister when the hose is disconnected. I've heard some rumor of another...
In the Yamaha Service Manual it says to check fuel pressure at the VST within 5 seconds after start switch is turned on and that the pressure should be 50.8 psi. After 5 seconds the pressure should be 43.5 psi. Then after warming up the engine the pressure while running should be 50.8.
On my...
It starts, idles and runs up to 3500 perfectly. If I push the throttles further rpms drop to 2500. If I back off it will pick up and run fine again at 3500. I've changed the racors, the filters in the water separators and cleaned those in the vapor separators. I've noticed that there is air in...
