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01-20-2017, 08:37 PM #1
300 drag spaghetti o rings for heads
Need a pair of them.Pro only list the ones for 280.Or a part #?
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01-21-2017, 07:38 PM #26000 RPM
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Same as 2.5 fishing motor. I went through the same thing.
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01-21-2017, 08:19 PM #3
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01-21-2017, 08:20 PM #4
should be #8584521 for perimeter/spegetti for 2.5 drag,which is same as fishing 2.5
I was wondering what combustion chamber oring merc used on s3000/drag?
My billet drag heads use 8597721 (same as fishing) which are directional and beefier then 280 orings (non directional)
Now on my 280 PH,i have a set of Diamond cut heads which also use 8597721,but of coarse you have to use 280 perimeter oring cause of the diff head bolt pattern.."Whacker Smacker" #561 IHBA M/E div1 2007& 2006 first looser champion
2007 Sportsmen Driver of the Year
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01-21-2017, 10:27 PM #5
The orings on my drag heads are directional and l think are wider than the 280 ones.Maybe they are the same as the DI motor.
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01-22-2017, 11:16 AM #6
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01-22-2017, 04:56 PM #7
I can see why to change the bolt pattern.On the other 2.5s the head bolt boss is really thin and is prone to cracking,the 280 has got some meat there.As for the o rings I don't got a clue,other than most hi output two strokes seem to use the small diameter silicon based o rings.
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01-22-2017, 09:48 PM #8Screaming And Flying!
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Combustion O ring for the Drag is the same as the fishing motor. The 280 is the oddball on tha water side and combustion.
Erik Kiser
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