skunkrider2 Posted July 7, 2016 Posted July 7, 2016 (edited) After some help please. Took the carbs off bike tonight (stood for months after buying it as a non runner) On the top of the carbs there are 4 plastic diaphragm covers. Each one is held on by 2 allen screws. Each one also has a rubber cap covering a short stalk. (I'm guessing this is where you would plug balancing gauges???) Any way one of the 'stalks' is snapped off and a second has no rubber. My question is, are these supposed to be sealed? (to keep vacuum) When i bought the bike the last owner said it would not start possibly due to sucking air in?? Im hoping I've found the cause in this snapped off pipe. Second question, if this is the cause, where would i find a diaphragm cover?? Ive tried the usual, Eblag ect, but dealers seem only to want the sell the whole bank of 4 carbs. Ill post some pics when i get a chance. Thanks in advance. Edited July 7, 2016 by skunkrider2 adding photos Quote
Captain Chaos Posted July 7, 2016 Posted July 7, 2016 available new from Suzuki, part no. 1350217C00 Quote
Fula28 Posted July 7, 2016 Posted July 7, 2016 I've repaired these before, if your super gentle and carful, you can drill the Bakelite top enough to slip short piece 3/16" of flared copper brake hose(car shite) into hole and bond it in there.The flared end is under neath and you can bond it in there. You will need to countersink the underside of the carb top, with say 1/4" drill bit by hand only. It works a treat and costs pennies to do. Good luck. Quote
skunkrider2 Posted July 7, 2016 Author Posted July 7, 2016 3 minutes ago, Fula28 said: I've repaired these before, if your super gentle and carful, you can drill the Bakelite top enough to slip short piece 3/16" of flared copper brake hose(car shite) into hole and bond it in there.The flared end is under neath and you can bond it in there. You will need to countersink the underside of the carb top, with say 1/4" drill bit by hand only. It works a treat and costs pennies to do. Good luck. Thanks for that, are these supposed to be sealed? i.e. would it cause problems starting the way they are? (Still trying to find out if this was the non starting issue when i bought the bike last year) Quote
skunkrider2 Posted July 7, 2016 Author Posted July 7, 2016 12 minutes ago, Captain Chaos said: available new from Suzuki, part no. 1350217C00 Thats great, If i cannot find a used one this is the next option. Quote
Madb Posted July 7, 2016 Posted July 7, 2016 (edited) I've uesd the outer bit of a rivet to do the same. Just tapped the inner bit out and bingo. But do countersink on under side like skunkrider2 says. I used a rubber bung off daughters pen to seal it until she demanded it back. Apparently the blue tongue didn't go well with her pink shoes! Cant please the kids nowadays. Edited July 8, 2016 by Madb Spelling again! 2 Quote
skunkrider2 Posted July 12, 2016 Author Posted July 12, 2016 Well after spending 10 year or so standing, i blocked the holes with blue tac (was all i had to hand) put the carbs back on, charged battery and hit the button. She fired!!! Ran for the amount of fuel in the bowls. So new diaphragm cover ordered (didn't want to risk drilling) and for £24.00 wasn't worth it. (melted starter relay fuse into holder in process, so ordered one of those too) So just a quick thanks to Captain Chaos for the invaluable web site!!! Second hand carb tops are like rocking horse shit?? £30.00 form USA & £15.00 postage for a used one??? Ehhhh no thanks. 1 Quote
Captain Chaos Posted July 12, 2016 Posted July 12, 2016 yes that site www.motorcyclespareparts.eu is very usefull. Glad you got it sorted. Quote
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