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  1. R

    8hp powerhead difference to the 6hp (1996, BJ6DREUC)

    Not sure u understand my topic or maybe I don't understand your comment... I have the 6hp and want to know what needs to be modified on the powerhead to get a 8hp. The "highspeed-orifice" of my 6hp is 38 and the 8hp gets the 50 (with which my 6hp-powerhead does't run at all)
  2. R

    8hp powerhead difference to the 6hp (1996, BJ6DREUC)

    not really - unfortunatelly. Yes, It's the main jet and the plate between carb. and reed valve. But furthermore it's this difference in the powerhead. Just check the part numbers- thy are different. On the older models- guess up to 1992- it's true what you say. I first just changed only the...
  3. R

    8hp powerhead difference to the 6hp (1996, BJ6DREUC)

    Hello, could anybody tell me the differences on the 1996-corresponding 8hp powerhead to the 6hp ? 1. I see these 3 exhaust windows each cyl. on my 6hp. How do those of the 8hp look like ? 2. Is there also a difference to the transfer ports?
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