Hello Guest User,

Please feel free to have a look around the forum but be aware that as an unregistered guest you can't see all of it and you can't post.

To access these 'Registered Users Only' areas simply register and login.

Black Residue in Carbs(ethanol)

Need help restoring, building, or finding then try here.

Moderators: KeithZ1R, chrisu, paul doran, Taffus

Post Reply
Message
Author
User avatar
PAULJAC47
Hardcore
Hardcore
Posts: 3266
Joined: 31st Aug 2008
Location: WOLVO WEST MIDS ENGLAND

Black Residue in Carbs(ethanol)

#1 PostAuthor: PAULJAC47 » Fri Jun 27, 2014 3:28 pm

Guyz just stripped out the bottoms of a set Mikuni carbs ,Bike was getting slow to chime in on a couple of pots,apart from the usual brown crap in all the bowls was, was seemed to be broken down black rubber bits i am guessing this is Ethanol breaking down the fuel lines,can anyone concur?
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."
-Han Solo

You can't polish a turd, but you can roll it in glitter

Salad is what real food eats.
Anon

PUM 673
Top
User avatar
Jay1969
Hardcore
Hardcore
Posts: 4260
Joined: 26th Feb 2013
Location: East Midlands, England.
Contact:
Contact Jay1969

#2 PostAuthor: Jay1969 » Fri Jun 27, 2014 5:11 pm

The seals in the fuel tap have become hardened / cracked tiny bits filtered through?

(apparently the ethanol debate from this websites view http://www.hitchcocksmotorcycles.com/ne ... e_Remedies - see 2., is more exaggerated than
experience)
Top
User avatar
Jay1969
Hardcore
Hardcore
Posts: 4260
Joined: 26th Feb 2013
Location: East Midlands, England.
Contact:
Contact Jay1969

#3 PostAuthor: Jay1969 » Sat Jun 28, 2014 8:19 pm

Done a bit more research on this, and apparently SAE 30R9 Grade fuel hose is the best for ethanol resistance...

http://www.goodyearep.com/ProductsDetail.aspx?id=17700


Similar available on eBay but not made by Goodyear, so can't rate the quality...

http://www.ebay.co.uk/itm/250833589945? ... EBIDX%3AIT
Top
gpjes
Regular Poster
Posts: 99
Joined: 13th May 2013
Location: Bingley West Yorkshire

Black Residue in Carbs(ethanol)

#4 PostAuthor: gpjes » Sun Jun 29, 2014 9:52 am

Hiya, I had to scrap ALL my fuel hose bits I had bought for various toys over the years (confirmed this with chaps who sold me it at Rufforth Autojumble) it will de-stabilise the fuel lines my H**** 4 stroke strimmer confirmed this when I saw the fuel line which had been immersed in the petrol over the winter when thrown at glass stick!!!!
Last edited by gpjes on Sun Jun 29, 2014 5:21 pm, edited 1 time in total.
More Smiles Per Mile
Top
User avatar
PAULJAC47
Hardcore
Hardcore
Posts: 3266
Joined: 31st Aug 2008
Location: WOLVO WEST MIDS ENGLAND

#5 PostAuthor: PAULJAC47 » Sun Jun 29, 2014 10:24 am

Changed fuel hose now to Ethanol proof see how she goes!!!
PAULJAC47,,,,,"She may not look like much, but she's got it where it counts, kid."

-Han Solo



You can't polish a turd, but you can roll it in glitter



Salad is what real food eats.

Anon



PUM 673
Top
dave cullen
ZedHead
ZedHead
Posts: 1093
Joined: 3rd Jul 2002
Location: edinburgh

#6 PostAuthor: dave cullen » Fri Jul 11, 2014 9:29 am

IM GOING TO BUY A COUPLE OF GALLONS OF ASPEN FUEL AT THE WEEKEND AND RUN IT THROUGH BIKES AT END OF SUMMER THEN USE IT AS STORAGE FUEL
Top
User avatar
Jay1969
Hardcore
Hardcore
Posts: 4260
Joined: 26th Feb 2013
Location: East Midlands, England.
Contact:
Contact Jay1969

#7 PostAuthor: Jay1969 » Fri Jul 11, 2014 11:00 am

What size is the inside diameter of the fuel lines, I want to order
some.
Top
Post Reply

Return to “Bike Help”

Who is online

Users browsing this forum: No registered users and 16 guests