Carbs - main jets stuck and very sh/---- mucky

[oldgreyandslow]

While waiting for my new jets I decided I'd strip the carbs and try to clean the emulsion tubes etc

It seems whoever had been here before had a fair old go at buggering it up

Both front and rears have one four hole and one five hole tube

They all look like cack



trying to remove main hets resulted in them coming out with the emulsion tubes, managed to free all but one by putting them back in and holding the tubes with a 7mm ring spanner, one is still stuck fast that is now saoking in penetrating oil

No indication as far as I can see on the main jets as to what size they are



Where would I find it?

Any other recommendations on further cleaning and getting that bloody stubborn jet off?

[porndoguk]

EITHER ON THE SIDE OR THE TOP/FACE OF THEM

ID PUT THE STUCK ONE - EMULSION TUBE I A VICE ON THE BENCH AND THEN UNDO THE JET WITH A LARGE FLAT SCREW DRIVER AND UNDO THAT WAY.

YOU CAN BUT JET, PILOT, AND EMULSIONS AS SPARES PAL. PANIC NOT!

[CRM]

go buy a 2 ltr bottle of coke, and leave it all soaking overnight.
it will be lovely and clean then, and clean off the sticky coke with a spray of carb cleaner before reassembly

[oldgreyandslow]

EITHER ON THE SIDE OR THE TOP/FACE OF THEM

ID PUT THE STUCK ONE - EMULSION TUBE I A VICE ON THE BENCH AND THEN UNDO THE JET WITH A LARGE FLAT SCREW DRIVER AND UNDO THAT WAY.

YOU CAN BUT JET, PILOT, AND EMULSIONS AS SPARES PAL. PANIC NOT!

Thanks

I'm not panicing........................ yet

I've got 4 jets and pilots and new gaskets on order, just no emulsion tubes, Thought they would be OK

I'll try the coke trick too

Bollocking bloody bike!

Edit/addition: I have just discovered that Wynns carb cleaner eats plastic, at least the plastic that my screw/fastener draws are made of, used one to put the emulsion tubes in, and put a fair bit of cleaner in to soak them. Came back to find no cleaner and the tubes sticking to the draw, knowing my luck the plastic will screw up the tubes. They are now in a tin of pepsi max (no coke in this house!). I will revisit this sorry pile of shite tomorrow!

[Neosophist]

Hey.. that'll be dirty old fuel!

I don't know if you read in my other thread but I said keep the carb-cleaner well away from the rubber diaphrams, just wipe them over and put them to one side (the diaphrams are in the tops.. check the needles are ok etc..)

Anyhow.. a few ways to clean them up.. the coke as been said.. not sure if pepsi-max will work.

You can also use on really bad jets...

1. Cheap tesco value vinegar (17p)
2. Bicarbanate of Soda (about a 1gbp?)

Anyhow.. emtpy your bottle of vinegar into a small bowl, ensure the vinegar is deep enough to cover the jets in, soak the jets in the vinegar, check them every hour or so and work them with a small soft nylon brush.

After a while they'll be spaning, rinse them with barcabante of soda water to neutralise the acid from the vinegar.

As for the stuck jet.

Ring spanner method is good, get a friend to hold that.. use the biggest screwdriver you can find to fit, anythign smaller will slip and break the jet... use positive but slow consant pressure and it'll give (two hands helps)

You can try tighening it a fraction first before you undo it too.

As rick said.. jet sizes either on top or side (wil see when crap is off them)

[oldgreyandslow]

Hey.. that'll be dirty old fuel!

I don't know if you read in my other thread but I said keep the carb-cleaner well away from the rubber diaphrams, just wipe them over and put them to one side (the diaphrams are in the tops.. check the needles are ok etc..)

Anyhow.. a few ways to clean them up.. the coke as been said.. not sure if pepsi-max will work.

You can also use on really bad jets...

1. Cheap tesco value vinegar (17p)
2. Bicarbanate of Soda (about a 1gbp?)

Anyhow.. emtpy your bottle of vinegar into a small bowl, ensure the vinegar is deep enough to cover the jets in, soak the jets in the vinegar, check them every hour or so and work them with a small soft nylon brush.

After a while they'll be spaning, rinse them with barcabante of soda water to neutralise the acid from the vinegar.

As for the stuck jet.

Ring spanner method is good, get a friend to hold that.. use the biggest screwdriver you can find to fit, anythign smaller will slip and break the jet... use positive but slow consant pressure and it'll give (two hands helps)

You can try tighening it a fraction first before you undo it too.

As rick said.. jet sizes either on top or side (wil see when crap is off them)

Thanks, I did read your other thread too, I assumed it was old fuel causing the problems, everything soaking as advised, emulsion tubes now in carb cleaner as are the float bowls, diapragms out a liberal spary over of the rest too, just waiting on the new jets to arrive as I'm changing the sizes I just hope the emulsion tubes are OK

Would you think I need to clean the inside of the tank and fuel tap/filter, as nothing is leaking I'd prefer not to remove the tap, however if its likely to be full of shite......

[Neosophist]

It's likely to be fine.

Turn the fuel tap on and suck on the vaccumn pipe (have a jar ready to catch the fuel)

So long as you have decent flow out of the fuel tap i'd leave it, the fuel tap has a built in strainer and the sticky crap that gets left behind is when the petrol evaporates, as long as there was fuel left in the tank the crap in the fuel should stay disolved.. the carbs only hold a small amount of fuel so it takes a lot less time for the petrol to evapourate out of them.

[porndoguk]

Dont forget to clean the 4x filters underneath the Float Valves, in each of the carbs

they some times fall off, and i use an angles dental scraper to pull them out, make sure you use the sharp bit in the side of the filter where the plastic is as youll puncture the guaze.

youll find them absolutely filthy and covere in like sandy orange silt.

[oldgreyandslow]

Thanks folks, just waiting on parts and the carb cleaner to do its stuff.

Float valves? I'll get my haynes out, find out where they live and do as you suggest