200 HP HPDI Maintenance

[Reming870]

Last year I picked up a couple used 2004 200 HP HPDI that were well maintained with only 400 hrs on them. I upgraded my fuel water separators to the Rancor 2 micron and ran the season for 200 hours without a single issue. I keep reading about all these additional filters that makes me real nervous as I haven't changed anything else besides the plugs and a bad oil sender.

Can someone please help me clarify the countless threads of maintenance I should be doing to these motors so I can keep running like I did this past season?

 

[99yam40]

if Yamaha says to replace filters, do it.

there is brush dust from the fuel pumps that can clog things.

also yamaha does not recommend that fine of a filter, might restrict fuel if it plugs and cause other problems with the fuel pumps if they do not have the fuel for cooling and lubrication

 

[N1NE1]

fuel water separator, Canister filter,vst tank filter,and if really want to dig in ...basket filters behind injectors...