Husqvarna k760

[Adal]

Hello all
Sent away for a new carburettor and it will not prime. the primer works fine. I am getting no petrol at all from the tank to the primer

 

[dobbslc]

Have you got the pipes the right way round?

 

[Kram]

If you didnt know already, most primers, work by expelling their contents back to tank through a check valve, and sucking fresh through the carb, from the tank. If your not gettjng any fuel through, its likely you have an air leak in the carb.

On a newish McCulloch saw - a husq brand, I found the accelerator pump oring was shriveled and leaking.I suspect they are using wrong seal material for it. Submerge partially, in the accl pump area, to check it. Relatively simple to do change, involves removing the butterfly valve.

 

[Adal]

Yes all fuel pipe are on the right way. I think I will send carb back. And send for a new one this time I hope it’s not a dead duck. If any one knows of a good site I can buy one from I will be much appreciated.

 

[Kram]

LS engineers. It wont be cheap.

 

[JOEPRO]

Hello all
Sent away for a new carburettor and it will not prime. the primer works fine. I am getting no petrol at all from the tank to the primer

Was it a new genuine carb or aftermarket one?

Top tip, none of the cheap ebay or amazon etc carbs work properly. Period. Waste of time. Best to properly clean the original genuine carb and fit a new gasket kit. Or buy a new genuine carburettor for about £65 approx. Vs £12 or less for a rebuild kit.

 

[dan.taylor.1]

I've said it many times, with the exception of some Honda carbs, the vast majority of them that I've worked on just needed a clean, preferably in an ultrasonic bath, and a gasket kit, not had to swap a carb that didn't have physical damage yet.

 

[Agrismith]

Yes all fuel pipe are on the right way. I think I will send carb back. And send for a new one this time I hope it’s not a dead duck. If any one knows of a good site I can buy one from I will be much appreciated.

I have same saw and bought a new carb for it on close inspection the carb was for an earlier version and not set up for the primer bubble. Had the place to connect the hose but didn't go anywhere

 

[Kram]

@dan.taylor.1 thats interesting about Honda carbs, what was wrong with them? 4T engines?

 

[dan.taylor.1]

@dan.taylor.1 thats interesting about Honda carbs, what was wrong with them? 4T engines?

Rebuild kits are often dearer than a non genuine carb (especially when you factor in the labour to strip and clean them, possibility of the main jet/emulsion tube being seized in), and they're so ubiquitous that even non genuine ones work fine if from the likes of l s engineers or other reputable suppliers.