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- Feb 7, 2009
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Its not a mistake and don't apologize. Your frustrated and should be.
Just know, there's probably more knowledge here on this forum than easily in your Yamaha shop.
The down side is, we can't physically examine, touch/test, etc, the bike as you or the shop can which is frustrating on both ends...
I've personally had horrible experiences at several dealerships (while under warranty) and eventually found the fix on a forum...
Hang in there, we'll get it going...
Do you have the shop manual for your S2 to check the fuel pressure per the manual? It may be holding steady and correct at lower engine speeds, but when its acting up, the pressure should be checked THEN.
And as Final Impact stated, that pump filter has to be intact. If there's ANY sized hole in it, crap gets in there and clogs the injectors. On the Yamaha FI'ed boats engines, they have a built in 10 micron filter. Most folks also add another transom mounted filter/water separator (also 10 microns). Even with that and several other filters thru out the system, particles smaller than 10 microns get thru and CLOG up injectors.
ANY BREACH in your pump filter won't cut it. Wether you can find a housing with a burnt pump and use your pump and their filter or get a another pump here or new, may be an option. Member Scooter65 was parting out a bike or check the F/S section, etc...
Just know, there's probably more knowledge here on this forum than easily in your Yamaha shop.
The down side is, we can't physically examine, touch/test, etc, the bike as you or the shop can which is frustrating on both ends...
I've personally had horrible experiences at several dealerships (while under warranty) and eventually found the fix on a forum...
Hang in there, we'll get it going...
Do you have the shop manual for your S2 to check the fuel pressure per the manual? It may be holding steady and correct at lower engine speeds, but when its acting up, the pressure should be checked THEN.
And as Final Impact stated, that pump filter has to be intact. If there's ANY sized hole in it, crap gets in there and clogs the injectors. On the Yamaha FI'ed boats engines, they have a built in 10 micron filter. Most folks also add another transom mounted filter/water separator (also 10 microns). Even with that and several other filters thru out the system, particles smaller than 10 microns get thru and CLOG up injectors.
ANY BREACH in your pump filter won't cut it. Wether you can find a housing with a burnt pump and use your pump and their filter or get a another pump here or new, may be an option. Member Scooter65 was parting out a bike or check the F/S section, etc...
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