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I was out on a short cruise when my xs lost half power (felt like it was running on 1 cylinder) and had to ride the clutch to limp it home. Well it sat for a couple days and I called the guy I bought it from to ask him if he had similar problems. He said sometimes the float would stick in #2 carb. So without hesitating I pulled off the carbs (not the easyest airbox assy.) and took them to the dealer in town. They did sell me a needle and seat , reworked and bench flowed them said they would work great. And they did when I fired the bike up in the parking lot. So I shut 'er down, drove across town, and put my bike back together again. Upon firing her back up the start button would not work so I jumped the selonoid and it ran (very pourly) but only on #1 and 2 . Cylinders #3 and 4 were not fired (a dummy test of spitting on each headder tube is the test I used) next I pulled a plug from #4 to test for spark . It was a very cold spark when I started the bike again .............Now my question is this can half a coil go bad ? Seeing how #3 and #4 are on two different coils . Or do Ineed to look for another problem ? Also the starter button is back to normal
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karateman -
Half a coil can't go bad. Standard or special? It still sounds like fuel delivery, bad petcock? Try it on prime.Gary Granger
Remember, we are the caretakers of mechanical art.
2013 Suzuki DR650SE, 2009 Kawasaki Concours 1400, 2003 Aprilia RSV Mille Tuono -
I thaught that the coils go 1 and 4, 2 and 3.... at least mine were labeled like that way...
Anyone knows sth bout that... for a 78?
LPIf it doesn't have an engine, it's not a sport, it's only a game.
(stole that one from I-dont-know-who)Comment
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Yer right; left coil works 1 & 4 >> right coil works 2 & 3 .JCarltonRiggs
81XS1100SH; WorkingMotorcycle,Not For Show,DeletedFairing,SportsterHL,
7½ gal. Kaw Concours gastank,1972 Wixom Bros. bags
79XS1100F; ?Parts?, or to Restore?Comment
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#3 n #4 better with prime
well i took off side cover to look for damaged wires and found split vac advance hose! but i still had 3 and 4 cyl. not hitting so i rembered a reply of someone saying "sounds like a fuel problem .....try on prime" so i did and now i have all four cylinders back !!!!!!!!!!!!! i think ill be bald by the time i get this all figured out
any suggestions!karatemanComment
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p.s. thanks to sixtysix and everyone else who repliedkaratemanComment
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Are you sure that is an advance hose and not a petcock control vac line. If the vac hose to you petcock is bad, no fuel will come out, fix the line then try bike on run again....do you have a standard or special?Gary Granger
Remember, we are the caretakers of mechanical art.
2013 Suzuki DR650SE, 2009 Kawasaki Concours 1400, 2003 Aprilia RSV Mille TuonoComment
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yes when i opened the side cover the hose was split at vac. advance but bike does run good on prime ill check petcock nextkaratemanComment
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