Fuel issues

[CheeserBeezer]

Hi BSA500. Seen this loads of times recently! The white stuff is generally referred to as 'crud' !

[berger]

BSA the white stuff is because of moisture reacting with the zinc in the carb . edit ,,   forgot to mention the dreaded moisture absorbing ethanol doesn't help at all.

[BSA500]

Of course the ethanol. Like a chemical bath sponge. Well let's just say Thursday in weather terms was rather 'moist' at least the mag etc was unaffected. Looks likely some of that crud was in the pilot circuit.

[limeyrob]

I think ethanol in fuel has a lot to answer for.  Its surprisingly reactive and seems to attack quite a lot of materials and absorbing water just adds another element.  When they upped the ethanol in diesel (which they keep quiet about) my Land Rover injection pump turned into a sieve with leaks everywhere.
On my A10 the Concentric pilot circuit was solid and nothing would budge it. I drilled the fixed jet out, tapped the carb body and fitted the earlier threaded jet so I can now poke it though.

[RGS Chris]

I always turn the petrol taps off before arriving home and allow the engine to run untill the carbs empty out. this prevents crud from drying out in the pilot Jet. Seems to work so far.

[muskrat]

G'day Fellas.
Australia the lucky country. Two grades of fuel with zero ethanol! 95 & 98 I use in everything plus octane boost to 107 plus Stabil ( https://tinyurl.com/5a6kw7kp ) and a bit 1:500 castrol R to keep it fresh for a year. Fill the tank today, good to go when I want (even in the lawn mower).
Cheers

[RGS Chris]

 The Stabil looks interesting, I wonder how it would go with a tank that's been sealed.
Some tank sealing products recommend not to use Lucas stabilizer as it reacts with the tank sealer. 

[muskrat]

G'day Chris.
The plunger tank is lined with KBS and no problems (yet!).
Cheers

[berger]

some pics here of my experiment today.  the first pic shows a small amount of E5 on it's own in an open container, the second pic shows E5 with the tetraboost i use in betsy to make her happy and the third pic shows the E5 with the additive. there is no water in two and three but number one sucked in the moisture rapidly and i managed to get the separate globules into one blob.

[limeyrob]

This is horrific, if understand this right we are going to see a lot of rusted out tanks.

[berger]

yes rob when you see a bike for sale and they photo the inside of the tank you see the top bit that doesn't look to bad just a bit of surface rust, but down the seams at the bottom it is really bad like my yonda was. to see such a small amount of E petrol suck that amount of moisture in over one hour is bad news. fair enough it was open to the atmosphere but so is a tank with it's vent hole when we park up over winter =. i remember taking betsy out a few years ago and told the girlfriend we had to go home because betsy was running so bad she thought she was a steam engine , i had to drain the tank and start again. this is why we get carb trouble after the winter months, i have put some of the diesel / petrol mix my mate drained from his tank into the yonda carbs for winter, [ yes i know some of you ride all year so don't have this problem] i must put a note on it and remember to drain it next year.  betsy beeza has the tetraboost in the tank. basically it is criminal what the establishment is doing. like the diesel charge in london Mr khan says it is killing people, but if you give him the money to drive your diesel car in london that problem goes away

[Rex]

, but if you give him the money to drive your diesel car in london that problem goes away

Londoners like that nice Mr Khan. They must do as they keep voting him in with a large majority so they must believe it.

[berger]

hahaha yes rex just like the people in yanky land voted for trump again, people are thick and easily led proven throughout history.

[Black Sheep]

Khan and Trump are at opposite ends of the spectrum.

[Rex]

Alternatively, they're both on the Spectrum...