Riders Of Vision

General => General Board => Topic started by: QBS on August 24, 2016, 12:27:38 AM

Title: Yamaha seems to have not learned its starter motor oil seal lesson
Post by: QBS on August 24, 2016, 12:27:38 AM
Was reading the latest issue of Motorcycle Consumer News, specifically the Letters feature.  The owner of a 2008 FJR1300A reported that his engine would barely turn over in spite of a new battery and clean electrical connections.  "After tearing the bike half apart to get to the starter", so as to remove and inspect the starter motor, he discovered that the starter motor was oil filled, and the brushes and commutator slots were gummed up with oil and carbon dust.  His report certainly sounded familiar to me.  He said that he replaced the seal with an aftermarket item and all is well.  How sad and unacceptable that Yamaha still can't figure out how to put a proper oil seal in its starter motors.
Title: Re: Yamaha seems to have not learned its starter motor oil seal lesson
Post by: The Prophet of Doom on August 24, 2016, 04:49:28 AM
Perhaps they do it on purpose

Title: Re: Yamaha seems to have not learned its starter motor oil seal lesson
Post by: Rikugun on August 24, 2016, 08:39:32 AM
Has it been shown to be a failing common to that model or just a random failure within the projected norm?
Title: Re: Yamaha seems to have not learned its starter motor oil seal lesson
Post by: George R. Young on August 24, 2016, 09:19:21 AM
As I recall, the seal in question was a single lip seal. It failed after a couple of years, and I replaced it with a double lip seal, which worked for the next 18 years or so.

Yamaha saved about 4 cents by using a single lip seal.
Title: Re: Yamaha seems to have not learned its starter motor oil seal lesson
Post by: Rikugun on August 24, 2016, 01:24:55 PM
I was referring to the FJR1300 in question.
Title: Re: Yamaha seems to have not learned its starter motor oil seal lesson
Post by: The Prophet of Doom on August 25, 2016, 07:16:40 AM
Quote from: George R. Young on August 24, 2016, 09:19:21 AM
As I recall, the seal in question was a single lip seal. It failed after a couple of years, and I replaced it with a double lip seal, which worked for the next 18 years or so.

Yamaha saved about 4 cents by using a single lip seal.
And yet when buying a new bike if they asked if you wanted to pay 4cents or even $4 more for the one that didn't break down in a couple of years, you would pay it.
I don't get the japanese