counterbalance

  1. Doug Overkill

    787 Counterbalance shaft oil & seal question

    Working on my 1997 Seadoo Challenger 1800 with twin 787's. Some may have seen my other recent post about 2-stroke oil leaking past the crankshaft seal and hydro-locking the Mag cylinder on the port motor. After a bunch of overthinking it, I decided to tear apart a good working motor to solve...
  2. I

    787 Crankshaft Counterbalance alignment

    Hi all, I have been caught with no marks on the crankshaft to align the counterbalance shaft. I have read the following thread "First, it is called a COUNTERbalancer shaft. That means the porkchops should be the OPPOSITE of the porkchops on the crankshaft. A crankshaft has pins that hold it...
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