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80G. stock petcocks. Found fuel leaking from petcock when engine running. No biggie. Carefully ride it home. Get on george fix. Kinda confusing as there were several choices for a G. Took a stab, looked at picture and ordered up. 18-2697 K&L kit. Shows up quick. Pull petcock (of course this always happens with a fulll tank of fuel). Diaphram on my OEM petcocks has locating holes to match up to plastic block. Diaphram in kit does not. Back to george fix. Check out pictures again. Diaphram in kit for Specials has locating holes. Bit the bullet and ordered kit for special hoping the diaphram will be right. Whats up with this?
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When a 10 isn't enough, get a 11. 80g Hardbagger -
Hi Webbcraft,Originally posted by webbcraft2150 View Post
FWIW, the Special's petcocks are a different animal altogether.
They don't fit a Standard tank, they don't have diaphragms (the auto-shut-off function is done by a separate device, the dreaded octopus valve) and I'm not sure if the internal 4-hole seals are the same.Fred Hill, S'toon
XS11SG with Spirit of America sidecar
"The Flying Pumpkin" -
Not sure, but I think the diaphram is the same size on the octopus valve as the "standard" with the exception of the locating holes. Will find out soon enough. If not, I have two kits to return and a petcock I can't fix.
Strange thing is I fixed the petcocks years ago and didn't have this problem with the kits. I guess push comes to shove, I can cut my own locating holes but hate hacking into new parts.
When a 10 isn't enough, get a 11. 80g HardbaggerComment
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AFAIK, the octopus diaphragm is the same as the petcock diaphragm. The one I got from George Fix had locating holes.Marty (in Mississippi)
XS1100SG
XS650SK
XS650SH
XS650G
XS6502F
XS650EComment
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Got the second kit in for the Special. Has locating holes like the OEM. Had hell getting the petcock to not dribble fuel out. Some flow when in ON and Reserve. Full flow in prime, as it should. finally got it to seal somewhat, very small drip every couple of seconds. Bike runs fine and its not "making oil" so far. Maybe just a bad/weak seal on this kit?When a 10 isn't enough, get a 11. 80g HardbaggerComment
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Have a look at this thread that talks about the petcock spooge hole. This may be why your diaphragm is not pushing back far enough to completely shut off the flow of fuel. You may also need to stretch the springs a wee bit.Ken TalbotComment
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Yeah, some kits have a short spring that needs a little stretching.Nathan
KD9ARL
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1978 XS1100E
K&N Filter
#45 pilot Jet, #137.5 Main Jet
OEM Exhaust
ATK Fork Brace
LED Dash lights
Ammeter, Oil Pressure, Oil Temp, and Volt Meters
Green Monster Coils
SS Brake Lines
Vision 550 Auto Tensioner
In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing.
Theodore RooseveltComment
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Pretty sure that the plunger length is different between the Octy valve diaphram and the Standard's though the diaphram is the same size79 SF Special W/ Stock all original motor @ 384,000klms
Stock exhaust, stock airbox, XJ sump, 78E carbs, Xs1100RH seat, Bosch superhorns, 5/8ths front M/c, braided lines, sintered SBS pads, drilled discs, progressive springs, 8" 50w HID headlight 4300K, 2 x 50w HID spiral driving lights, KONI shocks, Spade fuse box
*Touring mode - Plexistar 2 screen, Gearsack rack & bag & saddlebags, homebuilt towbar
*"The Keg"- UC torana hubs, XS11 discs, Tokico 4 spot calipersComment
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