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st90-k part

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Old 01-12-2013, 10:06 PM
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DaveFri
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Default st90-k part

where can i find a backplate for a st90-k?
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Old 01-14-2013, 07:11 AM
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Default RE: st90-k part

We'd not know. You will have to search for hobby retailers who sell parts to the collectors' market, or just search the websites that do reselling, like auction sites and the like.
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Old 01-14-2013, 07:14 AM
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Default RE: st90-k part


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ORIGINAL: Bax

We'd not know. You will have to search for hobby retailers who sell parts to the collectors' market, or just search the websites that do reselling, like auction sites and the like.
Will a backate from a G90 fit the S90K?
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Old 01-14-2013, 07:26 AM
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Default RE: st90-k part

Good question!! Will a G plate fit a ST90-K engine?
I keep searching ebay and in general the web but so far haven't come up with with many parts for ST90-K.I just recently bought another ST-90K,that is much cleaner (and stronger)than the one i have.The backplate has a screw in it. What would be the reason someone drilled a hole in the backplate?So i was looking for another plate as a back-up in case this one goes south.
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Old 01-15-2013, 07:10 AM
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Default RE: st90-k part

A backplate would be tapped to provide pressure to a pump or a regulated pressure system. Without a regulator, you don't want to use crankcase pressure unless you're running at 100% all the time, with little throttling.

As far as the G-61 rear cover fitting the S-61, we don't know at this time. It's been so long that we don't remember, our parts books don't show a cross-reference, and we don't have any engines/parts to do any trial fitting. All we can say is, "maybe", but we can't give you a definitive answer.
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