OutdoorKing Repair Forum Forums Repairs and Maintenance Questions on Trimmers and Brushcutters Ryobi Trimmers & Brushcutters Lawn Hornet Mk III Tuning

The fuel lines on my LH MKIII perished. I have replaced them and it started. It does not want to continue to run when the throttle is opened and stalls. I can see some air bubbles coming from the filter area into the carby. What should I do and what can I do about retuning? Thanks.

If your fuel lines were perished, then most likely your carburettor diaphragms will be hardened/contaminated too.

Sounds like you will need a carburettor kit. You will need to identify what manufacturer the carburettor is
ie:
Walbro, Tillotson, etc

If Walbro (most common) you need a D10-WAT Diaphragm kit, and suggest an inlet needle and screen whilst you have it apart.

Bruce on here will be able to help you with rough costings

Abs,

Before we go to a carby kit you should look at the muffler port/screen first as they could be blocked up.

If they are not blocked up then we would be looking at the carby diaphragms. The cost of a kit would be around $30.00.

Thanks the carbi is a walbro. Overnight the contents of the fuel tank have leaked out through the carbi so I'll put a new kit in and see.

Abs,

The kit you should get is a K10-WAT walbro as it includes diaphragms as well as a needle and filter for the carby.

Replaced the seals in the carbi and it runs great! Thanks for your help. Abs

Abs,

Glad that we were of some help. Let us know if you have any other problems as we like to all our members.