Carb advice please... I think!

[Seanturpin]

Oooh yes it's an 020av. She's an old girl but got good legs on her!

[spudulike]

I have had a couple of saws that have refused to start in the near past and have resolved the problem with a very slight bend of the metering arm - sometimes it is all that is needed, especially if the diaphragm is a little old or the saw has been standing for a while.

[GardenKit]

I think that on saws that have not been used for a while the inlet and outlet valves of the pump diaphragm can stick shut with gummy fuel.

The 'pulse' is insufficient in strength when pulling over by hand to open the valves and suck fuel through.

Introducing fuel through the inlet manifold is often enough to get a start, then the stronger pulse opens the valves enabling the pump to pump fuel in the normal manner.

A few minutes of solvent rich petrol running through the carb washes out some of the gum and off you go.

At least, thats what I think, others may disagree.

[Seanturpin]

Hi guys... I'm back!

 

I had the saw running great guns, and I've sorted enough firewood for next winter...

 

All was great until I stopped it for a last coffee of the afternoon and then went to restart it , both springs that push the two arms on the flywheel for the recoil to bite have broken. One had broken when I got it, so I made my own out of some sprung steel but it's putting too much tension on it and making it sound like a mental ratchet when I pull the recoil.

 

Do you know if these small springs are available on their own? I tried a few spares specialists and they're quoting for entire flywheels, or £20+ for springs that are for a newer saw. They're paper clip sized so I don't want to spend that much, especially since the saw is so old!

[GardenKit]

Hi guys... I'm back!

 

I had the saw running great guns, and I've sorted enough firewood for next winter...

 

All was great until I stopped it for a last coffee of the afternoon and then went to restart it , both springs that push the two arms on the flywheel for the recoil to bite have broken. One had broken when I got it, so I made my own out of some sprung steel but it's putting too much tension on it and making it sound like a mental ratchet when I pull the recoil.

 

Do you know if these small springs are available on their own? I tried a few spares specialists and they're quoting for entire flywheels, or £20+ for springs that are for a newer saw. They're paper clip sized so I don't want to spend that much, especially since the saw is so old!

They are correct in that the springs (part number 0000 998 1104) are now obsolete.

The flywheel is complete with springs. but................£121.02+vat!!

As for other springs, I personally dont know if they would fit.

[Seanturpin]

Bugger! I think I'll try to order a bit of sprung steel and make my own instead... unless anyone knows anyone who may have an old knackered saw with the ideal springs?

[spudulike]

If you take a picture of the spring fitted or off, we can give it a look and see if we have one that looks the same. I have made them before but is easier to fabricate one out of a similar spring!

[Seanturpin]

Ok brilliant... I'll get a picture tonight when I get home and post back... but it's the one I made out of an old bit of spring that's way too heavy duty to please excuse that! ;-)