Onan spark arrestor
Serviced my generator today and noticed that I’m supposed to clean the spark arrestor every 50 hours. I’m about 100 hours overdue! There’s a square head bolt/plug in the exhaust that needs to be removed and it wouldn’t budge with my Crescent wrench. Needs a proper tool but I didn’t measure it and now the coach is back in storage and I want to order a suitable 8point socket. Does anybody know the size? Thanks
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