I am now on my second rebuild for BOTH of my 03 Waverunners in 16hrs run time. Each ski broke brand new SBT power valves. What am I doing wrong?
03 xlt 800 keeps breaking new power valves PLEASE HELP!
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
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'89 Kawi 650SX 42.4 GPS
+3" stock pipe, ported ex. manifold, drilled waterbox, blueprinted pump, Ocean Pro ride plate
'99 Yama GP1200 65U 61.8 GPS
ported cylinders, matched cases, milled head, blueprinted pump, long ride plate
'96 Seadoo HX 717 53.13 GPS
light porting, massaged cases, lightened flywheel, port matched manifolds, Rossier pipe, stubby pump cone
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
Power Valves need to be trimmed according to the Piston size. For each Piston size increase, the Power Valves Blades need to be trimmed. Or else the Blade will impact the Piston Tops.
Also, if the Power Valve Housing guides are worn out and allow the Power Valves to flutter or 'Butterfly", they will break pretty fast. The Power Valve Slots wear out because, when Power Valves are not cleaned every season, the hardened Carbon buildup wears the slot bigger like sandpaper. You might need more than just new Power Valve Blades.
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
Originally posted by JC-SuperJet View PostPower Valves need to be trimmed according to the Piston size. For each Piston size increase, the Power Valves Blades need to be trimmed. Or else the Blade will impact the Piston Tops.
Also, if the Power Valve Housing guides are worn out and allow the Power Valves to flutter or 'Butterfly", they will break pretty fast. The Power Valve Slots wear out because, when Power Valves are not cleaned every season, the hardened Carbon buildup wears the slot bigger like sandpaper. You might need more than just new Power Valve Blades.
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
Originally posted by JC-SuperJet View PostAre you sure? Did you measure both SBT Bores to confirm?
They've been known to only replace one Sleeve, if the other Sleeve is still usable!'05 Honda Aquatrax Turbo F-12X!
'96 Yamaha Super Jet!! 701cc
-Alum Pole. MSD. Factory B-Pipe.
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