1 carb over fuelling help

[sparky 0]

Ok bike went in garage for carb clean and balance its came back worse carb 1 drenches my plug any ideas guys rang the garage they want another £180 to look into it but they messed up once its not going back there plus why pay again for a job that should be done right first time also they balanced carbs without attaching the carb heaters but the thing is why would plug one get so wet from a 5 mile ride makes me not want to ride my bike help please guys

[dick65 0]

have you checked the float height? also sounds like its sticking or the jet could be dodgy also does the header get hot on that cylinder ? could be sticking valve ,bad ht cable or plug, im sure someone will point you in the right direction.

[sparky 0]

I think it's float height but don't know how to check useless with carbs

[lee1 1]

Does sound like float height to me,I would be giveing the bike shop hell if it was me

some good info here if you want to set them yourself just need what they should be set at

http://www.mtsac.edu/~cliff/storage/gs/Mikuni_BS-CV_Carburetor_Rebuild_Tutorial.pdf

[trebor4460 0]

If you are sure she's sparking fine and the plugs ok then there's a good chance the float valve is sticking or there is a bit of crap in there stoping the float valve seating right.
You could try to drain its float bowl, this will let the float valve to drop with the float and hopefuly clear the valve, otherwise it's a strip and clean.

[sparky 0]

@trebor4460 wrote:

If you are sure she's sparking fine and the plugs ok then there's a good chance the float valve is sticking or there is a bit of crap in there stoping the float valve seating right.
You could try to drain its float bowl, this will let the float valve to drop with the float and hopefuly clear the valve, otherwise it's a strip and clean.

They was stripped and cleaned when it went to garage

[Davehutch-hutchs 0]

@sparky wrote:

@trebor4460 wrote:

If you are sure she's sparking fine and the plugs ok then there's a good chance the float valve is sticking or there is a bit of crap in there stoping the float valve seating right.
You could try to drain its float bowl, this will let the float valve to drop with the float and hopefuly clear the valve, otherwise it's a strip and clean.

They was stripped and cleaned when it went to garage

yes but like trebor has said there could still be a little bit of muck under the float valve ,

[trebor4460 0]

Don't always trust the competency of the garage, the carb balance won't cause it to overfueling cos you ain't altering the mixture as such, the clean maybe as the float valve might not be seating now,
Also as the lads have said the float height might have been disturbed.

[Macie_UK 0]

Was the bike running badly before going into the garage? If it was running fine, then they need to be fixing it FOC as it's evidently something that they have done while cleaning the carbs.

[sparky 0]

When it went in to garage they stripped cleaned rebuilt and balanced just such an incompetent garage they didn't even re attach carb heaters

[sparky 0]

@Macie_UK wrote:

Was the bike running badly before going into the garage? If it was running fine, then they need to be fixing it FOC as it's evidently something that they have done while cleaning the carbs.

yeah it ran fine

[Macie_UK 0]

@sparky wrote:

yeah it ran fine

Surely it *has* to be down to them to put it right. They want £180 to look into a problem that they caused? Utter . If you get no joy on the phone or by phone, write them a letter of complaint and if that doesn't work then contact trading standards.

I've heard a couple of scare stories about some, shall we say "less than competant or good value" bike fixers in the county and for some unknown reason they stay in business, but they were not around the 'Ville.

[ricklincs45 0]

Turn fuel off at tank, undo the float bowl drain screw on the offending carb and release fuel - make sure you have a small container underneath to catch drained petrol. Do this with the engine cold. Try and use a clean container and check drained fuel for contaminants.

When float bowl is empty, re-tighten drain screw, turn fuel back on at tank and start bike. When she's able to tick-over off choke, try GENTLY tapping the float bowl with something like the handle end of a screwdriver - it might, just, release any dirt that's lodged in there, but it's a long-shot. Got to be easier than stripping the carbs though...

All the best,

Rick @ 80bikes