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Fixing the Starter Spin Problem

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Written by Randy Fox (Randysgym)   
Wednesday, 10 October 2007

Parts List

  • Lapping compound (a.k.a. grinding compound). You can use either fine or coarse (or both). Available at most autoparts and, probably, home improvement stores.
  • Retaining compound, like Loctite® Bearing Mount RC609. Optional. This is similar to thread-lock. However, it is formulated to hold fast on threadless, keyless shafts (like the generator shaft). If you use this, the lapping compound, above, is optional. Retaining compound is only available from commercial suppliers. To find a supplier near you, you can go to www.loctite.com, click on your country, click on Distributors, and enter your postal code. Note: Thanks to Patrick Sills and the Delphi Road Star Project forum for this tip.
  • Red (permanent) Loctite, or equivalent. Available at most autoparts and home improvement stores.
  • Generator cover gasket. Yamaha part#: 5PX-15461-02-00 (this is the new part# and supersedes 5PX-15461-00-00).
  • Exhaust header gasket, for the front pipe. Use either Yamaha part#: 3EG-14613-00-00, ($3 to $6ea), or AutoZone part#: Fel-Pro 23588, (less than $1.50ea).
  • Generator-cover bolt washer. Yamaha part#: 90430-06014-00, optional but recommended. This is the little washer for the lower, long bolt.
  • 2"x8" x 12" wood pieces (quantity: 1 or 2), or equivalent, if your bike's suspension has been lowered, and you do not want to drain the engine oil for this project. See next page for details.

 

Tools

  • 5mm hex (Allen) wrench.
  • 6mm hex (Allen) wrench, for the floorboard mount.
  • 8mm hex (Allen) wrench, for Removing/installing the front exhaust header.
  • 17mm socket, for the generator shaft bolt.
  • A dead-blow hammer, or a piece of wood and a hammer--for coaxing the generator rotor from its shaft. Not needed if your rotor is already loose.
  • A propane torch, optional, as a possible tool to help get the generator rotor free of its shaft. Not needed if your rotor is already loose.
  • An impact wrench (and compressor) or breaker-bar socket wrench, for the generator shaft bolt. Not needed if your rotor is already loose.
  • An impact wrench (and compressor) or large torque wrench, for the generator shaft bolt.
  • A large, adjustable, open-end wrench (like a Crescent), to help hold the generator rotor while torquing. Optional. Alternatively, you could use a Yamaha sheave holder tool (# YS-01880. See the service manual for details).
  • Razor-knife or gasket removal liquid (like Versa-Chem Gasket Remover spray), for cleaning off the old gasket remnants-- both available at most auto parts and home improvement stores.



 
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