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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?
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
Buying power valves from SBT......http://www.facebook.com/twinlakesjetskirepair
'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!
Is that a question? Yes. Factory power valves failed. Snapped at stem. Now sbt pv also snapping at stem. 16 hrs between 4 rebuild on 2 skisOriginally posted by Myself View PostComment
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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.Comment
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
One ski has stock cylinders...the other has new sbt cylinders is stock bore. The guides are snug. What do I look for in the slot to see if that is too worn? Shouldn’t be on the sbt cyl but maybe they didn’t check??Originally posted by JC-SuperJet View PostComment
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
no trimming here as nicasil boreComment
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
SBT removes the Nikasil and inserts Cast Iron Sleeves...Comment
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
which should be standard size then ! so no trimmingOriginally posted by JC-SuperJet View PostComment
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
Are 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!Comment
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
Like With different size bores on cyl 1 vs cyl 2 then?!?Originally posted by JC-SuperJet View Post'05 Honda Aquatrax Turbo F-12X!
'96 Yamaha Super Jet!! 701cc
-Alum Pole. MSD. Factory B-Pipe.
Girlded Head. Worx SS pump shoe. SS Impeller. Scoop Intake. RidePlate. UMI Bars/Grips.
'92 SN SJ Project--- '03 GP800R -For Sale. Great Condition. LI, NY. PM Me if interested!Comment
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Re: 03 xlt 800 keeps breaking new power valves PLEASE HELP!
Yes, SBT Engines can/will have different size Bores on the same Engine...Originally posted by AWDBooSTiN90 View PostComment
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