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Hayter Spirit 41 with Brigs Classic

Started by JohnnyH, May 29, 2024, 04:43:21 PM

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Hi all,

I have a 13 year old Spirit with the Classic/sprint engine. I have recently changed the carb for a genuine new one with new gaskets/diaphragm. The mower runs however does not want to start on a hot restart!

Now the idle is not perfect and it has a faint odd splutter however there is enough rpm to run and mow. I putting this down to possibly the throttle spring. (only one on this sprint)

I am a bit of novice with mower engines so would appreciate any advice please? :)

I have attached a pic of the spring on the carb. Does this look right? I had a similar machine many years back that had two springs on I'm sure.

many thanks


Hi John, and welcome to TGMF

The engine with two springs had a air vane governor system and yours has a internal mechanical governor which only requires the single spring.

Assuming the carb is good (as it's new) things that can cause hot start issues.

The inlet tube which the carb pushes onto, make sure this isn't cracked, and also make sure it hasn't come loose where it mount to the engine block.

It's not uncommon for the ignition coil to break down or get weak when hot. Also what spark plug are you running in it, and what sort of connection (plug cap) does it have on the end of the HT lead?

And as it's a few years old, it's also possible the inlet and exhaust valves could need grinding in and tappets adjusted. It's a job to tell without hearing the machine as you can imagine.

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