Hey guys. I have 2002 Yamaha HPDI 200's on my 2870 Pursuit. They've always run excellent, about 700 hours. Only use ethanol free fuel, Yamalube & Ringfree maybe every 3-4 fill ups. I know is some groups they mention Ringfree causes plugs to fowl but they've been purring fine for 7 years with Yamalube and this is only the one cylinder so that's not it.
My port motor started these symptoms.
So far we tested:
[FONT=Helvetica, Arial, sans-serif]Basically everything checks out fine per my mechanic but we think the #1 cylinder just isn't firing at all and it's somehow fuel related. My mechanic thinks possibly it could be a "reed" that stuck, he's looking at that tomorrow. Crazy but I thought maybe someone might have some insight.[/FONT]
My port motor started these symptoms.
- Go out for 1-2 hours #1 cylinder fouled plug real bad,
- Motor idles rough, has the "lean sneeze" at idle, idles lower than normal RPM then dies
- Won't go more than 2,500 - 3,000 RPM WOT.
So far we tested:
- Has spark to plug, coil fine,
- Fuel injector was fine had it checked, then even swapped it with another cylinder,
- fuel injector driver has correct current,
- TPS is set correctly,
- Compression is good.
[FONT=Helvetica, Arial, sans-serif]Basically everything checks out fine per my mechanic but we think the #1 cylinder just isn't firing at all and it's somehow fuel related. My mechanic thinks possibly it could be a "reed" that stuck, he's looking at that tomorrow. Crazy but I thought maybe someone might have some insight.[/FONT]