Hi
Took the bike for a ride this week and it was idling rough and bogging down.
Pulled the spark plugs found two them were covered in black soot/carbon. I cleaned the plugs and started her back up.
I noticed that fuel is leaking from the slider needle were the throttle body is.
I have attached a picture below.
When I push the slider back the fuel stops leaking.
last picture you can see a small puddle of fuel on the butterfly flaps.
Before I do more harm than good thought it better I ask for help
Any help much appreciated
Carb Leak Again
- oldskoolexup
- Motormouth
- Posts: 1219
- Joined: Sun Jul 19, 2009 11:45 am
- Location: THE place...some are born here, some drawn here...Manchester
- oldskoolexup
- Motormouth
- Posts: 1219
- Joined: Sun Jul 19, 2009 11:45 am
- Location: THE place...some are born here, some drawn here...Manchester
Just happened to have an idle moment!Teego wrote:Thanks for getting in before me. I say toobs - it always is.
As you say, can't see it would be anything else and would lead to poor/excess fuel metering if worn?
I'm presuming that both should be changed as sets?.......in which case, is there a hardened version available that doesn't wear as readily as brass?
Life begins at the end of your comfort zone,
Learn from the mistakes of others.............................
You can't live long enough to make them all yourself
&
Carpe Diem - seize the moment. Don't dream... Do!
Learn from the mistakes of others.............................
You can't live long enough to make them all yourself
&
Carpe Diem - seize the moment. Don't dream... Do!
- Teego
- More Rabbit Than Sainsbury's
- Posts: 2518
- Joined: Tue Mar 14, 2006 11:48 am
- Location: On the road again. Distance is the drug.
Yes, Factory Pro stainless steel toobs. I bought a used set from Exup Freak because he couldn't get on with them. Sorted me immediately.oldskoolexup wrote:Just happened to have an idle moment!Teego wrote:Thanks for getting in before me. I say toobs - it always is.
As you say, can't see it would be anything else and would lead to poor/excess fuel metering if worn?
I'm presuming that both should be changed as sets?.......in which case, is there a hardened version available that doesn't wear as readily as brass?
I doubt there will be much wear on the needles as they are steel and the brass toobs pick up all the wear. That was the case for me, anyway.
Keep on keepin' on.
I bought & fitted new 'toobs' as it was another item on my list to try & find a running fault. Even though the 'toobs' were 48,000 miles old they were as good as new but I fitted the new ones anyway...& it made absolutely no difference whatsoever.
If you've got one of those heat reading devices with the laser pointer, see what each exhaust downpipe is reading. I suspect that the cylinder with the dodgy fuel puddle in the carb is running hotter as the extra fuel in the cylinder will make it run rich.
I suspect that an air leak between the carb & the inlet prt of the cylinder head is leaking. Spray some WD40 around that cylinders manifold & listen for an increase in tickover.
If you find that the revs do rise, then the 'O' rings are available
https://www.fowlersparts.co.uk/parts/40 ... 9-c/intake
Part 9 on the fiche
If you've got one of those heat reading devices with the laser pointer, see what each exhaust downpipe is reading. I suspect that the cylinder with the dodgy fuel puddle in the carb is running hotter as the extra fuel in the cylinder will make it run rich.
I suspect that an air leak between the carb & the inlet prt of the cylinder head is leaking. Spray some WD40 around that cylinders manifold & listen for an increase in tickover.
If you find that the revs do rise, then the 'O' rings are available
https://www.fowlersparts.co.uk/parts/40 ... 9-c/intake
Part 9 on the fiche