dt250Man Posted July 31, 2009 Share Posted July 31, 2009 Would there be any harm into replacing the petcock from my 81xs400 to one that is just a on off kind? thinking it might make things alittle easier. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted July 31, 2009 Moderator Share Posted July 31, 2009 Not a great idea, vacuum taps were a step in the right direction, why would you want to do this...having problems with yours? Link to comment Share on other sites More sharing options...
mdsims Posted July 31, 2009 Share Posted July 31, 2009 harm? not at all. extra and perhaps unnecessary work? possibly. just remember to turn it to off when the bike sits for a period of time. my vac one hasn't bothered me at all. did take some getting used to when removing the tank because the stock vac line was very short. new carb boots and vac lines about 2 months ago solved that problem. what exactly is wrong with it? Link to comment Share on other sites More sharing options...
Moderator Airhead Posted July 31, 2009 Moderator Share Posted July 31, 2009 harm? not at all. They were developed to prevent hydraulic lock incidents and wrecked engines...unlikely I know but they stop the unlikely Link to comment Share on other sites More sharing options...
dt250Man Posted July 31, 2009 Author Share Posted July 31, 2009 I think i just need a new one. I get a steady stream of fuel with it in the on or res spot. I tore it down i everything looked good but it still drips gas. The only thing i can see wrong with it is the oring on the vacum side is kinda tore up. Link to comment Share on other sites More sharing options...
Moderator Airhead Posted July 31, 2009 Moderator Share Posted July 31, 2009 I think i just need a new one. I get a steady stream of fuel with it in the on or res spot. I tore it down i everything looked good but it still drips gas. The only thing i can see wrong with it is the oring on the vacum side is kinda tore up. Here is a repair kit Link to comment Share on other sites More sharing options...
mdsims Posted August 1, 2009 Share Posted August 1, 2009 harm? not at all. extra and perhaps unnecessary work? possibly. just remember to turn it to off when the bike sits for a period of time. my vac one hasn't bothered me at all. did take some getting used to when removing the tank because the stock vac line was very short. new carb boots and vac lines about 2 months ago solved that problem. what exactly is wrong with it? They were developed to prevent hydraulic lock incidents and wrecked engines...unlikely I know but they stop the unlikely like i said before, with proper operating techniques such as turning the fuel valve to the off position when not riding the bike (just as all MSF instructors teach) there is no harm to having a manual petcock. I do agree, the danger is when people forget to turn that valve after riding the bike so it is much easier to just have the vac petcock and thus the peace of mind. Link to comment Share on other sites More sharing options...
Moderator drewpy Posted August 1, 2009 Moderator Share Posted August 1, 2009 the pet cocks are easy enough to repair as you get all the gaskets etc and you keep the originality of the bike if its well looked after! I would def need mine as I forget to take my keys out of the ignition never mind switching off the petrol!! Link to comment Share on other sites More sharing options...
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