Posted By: flatwater1
Yamaha Vmax 175 - 01/09/20 03:35 PM
Hey guys, I have a 2001 Yamaha HPDI 175 hp that starts fine and gets out of the hole and on plane just fine but cuts out like its running out of gas at 45-50 mph. Changed out all the filters except the small injectors and the vapor separator pump filter. Anyone know what could cause this? Thanks
Posted By: boatman025
Re: Yamaha Vmax 175 - 01/09/20 04:09 PM
Could have a injector clogged might need to get them cleaned and I would do VCST filter also.
Posted By: CADD
Re: Yamaha Vmax 175 - 01/09/20 04:28 PM
Most likely It's your VST filter that is clogged up, Google "VST Yamaha HPDI". If it's not been cleaned or replaced its time for a 2001 model. Also, the Low-Pressure Fuel Pumps can cause starting and running issues at the age. Neither are super expensive and very hard to do, lots of howto's and take your time.
Posted By: Fish Killer
Re: Yamaha Vmax 175 - 01/13/20 07:09 PM
Screen filters in the High Pressure Pump.