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Honda Carb

I have a Honda HRX 476 which I use for small lawns. It's always been great and started 1st time but last year it was hunting a lot. I cleaned the carb to the best of my ability but it was no better.

A local engineer had a go, apparently cleaning it in the ultrasound tank but it still hunts and lacks the grunt it used to have. It's not such a good starter either.

I am thinking of putting a new carb on. Genuine Honda ones are about £92, reputable looking dealers online sell pattern ones for £30 ish and eBay does them for 15.

what is everyone's experience of pattern carb's? Are they ok or just crap. I don't think I would go for the £15 ones but the £30 ?





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  • PRO

    Could be just your carb regulator spring has stretched. I'd play with that first.

    Ive used Stihl clone carbs, they work but they run a bit rough.

  • Thanks HB,


    will take a look.



    • PRO

      I had similar issues with my Stihl blower 

      The repair shop traced it to my fuel mix , they cleaned the carb and gave me a complimentary bottle of fuel additive .

      In this case '' fuel fit " by Briggs and Stratton and it seems to be working .

      No starting problems or erratic running .

      The original carb in the machine which is four years old .

  • Does the governor arm move freely?  Fuel flows freely from the pipe into the carb?  Sounds like the carb has had a good clean.......... I'd be tempted to give a cheap pattern one a go, I've had a lot of success with Stihl ones. 

  • PRO

    Did you use new gaskets and make sure the mating surfaces are clean and flat?

    • I did when I did it, don't know if the workshop who clened it did but hope so.



  • PRO

    My local machine shop doesn't bother cleaning carbs anymore - they figured its easier (and cheaper for the customer) to put an aftermarket one on...

    Have had a couple of aftermarket Honda ones without issues, bought a non Stihil, Stihl one on Ebay which was OK but not perfect a year later (needs choke on for a while to get up to speed on first start but OK after) but I seem to remember it was only about £18, so I'll just put another one on!

    Biggest issue with any carb is the ethanol in the fuel attracting water which corrodes the carbs inside.

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