Barnesd09
Well-Known Member
Does anyone know if a crank stroker pin can be inserted backwards so the stroke can be shortened?
Stroker pins
- Thread starter Barnesd09
- Start date
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The_GDFP
Master Spanner Spinner
Yep, but the oiling hole won't line up. If you have a shop that can EDM a new hole, it would be easier. Otherwise, drilling is near impossible. The pins are harder than woodpecker lips. Another way is to grind/cut a groove around the pin, intersecting the oil hole. Chucking it in a lathe works pretty good. I did a 56x50.5 Tak 4v combo with 97mm rod from the lame as 54.5x53 (supposed to be, but actually illegal 55mm stroke in three I measured, 128cc...) 125cc Zonger HO for one of our sponsored kids in AMA National ATV MX. It rips. While it's apart, one could lighten the crank a bunch, I suppose.
