I was wondering, my fuel tank is being pressurized when I ride, are these gas caps supposed to maintain a pressure, or is my vent plugged up?
Unlikely... it would have to be near 500?F for that to happen.... it was a little over 100F when I was riding, so that may add to the excessive pressure, black bike in high heat - the fuel was probably close to spontaneous combustion temp in the tank.
No, it is only in the upper 80's today, which is much more comfortable for riding. I am in Moses Lake, PM me and I can give you my contact info...always looking for an excuse to put miles on, or go for a coffee in another county.Is it still 100 degrees in E WA??? Riding over tomorrow. Where are you at Bonth123??
ToddC
It opens easilly enough, just releases pressure like a fuel injected car.Sounds mostly normal to me.
If it's hard to turn apply some moly paste between the rubber seal and metal underside of the cap. Grease works too, seems to disappear faster than moly tho.
Ok, maybe I was a little facetious on that oneUnlikely... it would have to be near 500?F for that to happen.
I know you were, just joking with you.Ok, maybe I was a little facetious on that one
The tank, or false cover piece, was too hot to touch with bare skin...but I am sure it was far below 500F, doubt it passed the 250F mark
The vent in the cap will allow some pressurization, since it has a spring inside. To find out how much pressure, take the cap off, remove the small hose and suck or blow on / into the barb. You will feel the amount of pressure it takes to open the pressure relief valve.I was wondering, my fuel tank is being pressurized when I ride, are these gas caps supposed to maintain a pressure, or is my vent plugged up?
Glad to see the tip about the moly paste... last fuel stop I had to get the multi tool out to turn the gas cap...whew... thought i'd never get it off!Sounds mostly normal to me.
If it's hard to turn apply some moly paste between the rubber seal and metal underside of the cap. Grease works too, seems to disappear faster than moly tho.
Try some silicone grease ( dielectric grease ). Won't affect the seal material.Glad to see the tip about the moly paste... last fuel stop I had to get the multi tool out to turn the gas cap...whew... thought i'd never get it off!
correct, grease will eventually deteriorate the seal. a silicone base grease will not interact with rubberTry some silicone grease ( dielectric grease ). Won't affect the seal material.
I haven't been inside my gas cap, but if there are rubber parts - gaskets - they will be damaged by carb cleaner. I want to take mine apart this winter to check it. I've managed to tip my bike over with a full gas tank and nothing leaks out (fortunately). Just wondering if this is normal, but cleaning it seems to be a good idea for preventative maintenance.Well, I found the source of the fuel smell...I had a fuel line under the false tank that was not secured with a clamp of any type...so when the tank pressurized it would force some out at that connection. I also used a small probe to move the internal parts of the cap and voila, no more excess pressure, must have been stuck with gunk or something, but it works good now. I think this winter I will let is soak a little in some carb cleaner and see if that gets the gunk out.