Oil drain plug size - Page 3 - Honda Foreman Forums : Rubicon, Rincon, Rancher and Recon Forum
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post #21 of 22 (permalink) Old 01-02-2019, 12:02 PM Thread Starter
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Originally Posted by toodeep View Post
Tap it to a 14mm Rich, the 300 has a lot if case there. If you get a drain plug from a CB 750 ( I think) it's the 14 mm yet still the 17mm head, looks factory when done.

@toodeep, what about a 350 Rancher case? Think it's thick enough to helicoil or tap it out to a 14mm?

Have one torn down. Trying to decide whether to just buy a used case or try to fix this one and perhaps make it stronger with a helicoil.

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post #22 of 22 (permalink) Old 01-02-2019, 12:05 PM
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I've done the 350 rancher with a 14mm plug. It sits at a slight angle in those.

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2007 420FM (475cc, 27x12x12 Mudbugs) ---------- 1995 300FW (webcamshaft, 350 rear end)
2008 420FE (26x9x12 BearClaws) -------------------
1988 300 (old stock machine, nothing fancy)
2009 420FA (25x8/10x12 BearClaw HTR) ---------
1987 350D (work in progress)

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