Hayter 21 spark plug - Vintage Horticultural and Garden Machinery Club

This topic has 5 replies, 4 voices, and was last updated 7 years, 6 months ago by vhgmcbuddy.

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September 10, 2018 at 9:31 pm #29230
vhgmcbuddy
Member
I have a 1974 hayter 21 (the one on the left of the picture). Does anyone know what spark plug it should have? Can’t seem to find a manual anywhere for it.
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September 11, 2018 at 7:51 am #29233

charlie
Keymaster

What engine does it have?

September 12, 2018 at 5:00 pm #29238

vhgmcbuddy
Member

Hi Charlie.

It is a 5hp Briggs and Stratton Engine – Does that help or do you need more info?

September 12, 2018 at 8:19 pm #29239

andyfrost
Participant

Champion CJ8

Andy.

September 12, 2018 at 11:28 pm #29240

wristpin
Participant

or, NGK B2LM

September 13, 2018 at 12:14 am #29241

vhgmcbuddy
Member

Thank you for the suggestions, I have ordered some. The mower was running very rough and having taken the carb to bits and cleaned up the ignition, re-setting the gaps, it still ran rough. Changed the plug for one from another mower and it runs better than ever. Just want to make sure I’m using the right plug.
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Hayter 21 spark plug - Vintage Horticultural and Garden Machinery Club

Hayter 21 spark plug