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Board index » Questions & Answers » Honda CR, MR & MT

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woosh
 Post subject: Piston difference
PostPosted: Wed Jun 11, 2008 9:18 pm 
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Joined: Sat Dec 01, 2007 3:03 pm
Posts: 265
I have to pistons for my 73-74 cr250m cylinder both are made by wiseco. One is new it has a normal skirt the other one was made back in the day and it has port holes cut into the skirt. Why does wiseco not do this anymore were there reliability issues or somthing?
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mx317
 Post subject: Re: Piston difference
PostPosted: Thu Jun 12, 2008 10:57 am 
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Joined: Thu Jan 03, 2008 7:27 am
Posts: 47
Usually, the port holes are for reed valves. Wiseco sold reed valve kits once upon a time. I have a new one in the box for a CR125.
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