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General Category => Yamaha FJ1100 / FJ1200 Running Problems => Topic started by: Sparky84 on June 22, 2019, 09:15:07 PM



Title: Starter Motor Noise
Post by: Sparky84 on June 22, 2019, 09:15:07 PM
For awhile now, my starter gives out a howl at the end of starting up, whether cold or hot, can’t hear it while it’s turning motor over but usually at the end and also when the starter button gets stuck.

Sort of sounds like a dry bearing.

Any clues on the culprit.

Btw, 84 FJ


Title: Re: Starter Motor Noise
Post by: Troyskie on June 22, 2019, 09:28:23 PM
From what you describe, I agree, it sounds like a dry bearing or bush.


Title: Re: Starter Motor Noise
Post by: Sparky84 on June 22, 2019, 09:48:25 PM
Next thing then, are any bearings or bushes inside serviceable , easily serviceable would be better.


Title: Re: Starter Motor Noise
Post by: Troyskie on June 22, 2019, 10:22:46 PM
I'm not sure mate, here's the parts diagramme.

No mention of bushes or bearings...


Title: Re: Starter Motor Noise
Post by: red on June 22, 2019, 11:03:19 PM
For awhile now, my starter gives out a howl at the end of starting up, whether cold or hot, can’t hear it while it’s turning motor over but usually at the end and also when the starter button gets stuck.  Sort of sounds like a dry bearing.  Any clues on the culprit.  Btw, 84 FJ
Sparky,

It sounds like a dry bearing.  If you can find a breaker yard or used parts dealer, the newer versions of the starter have four brushes, not two, for better cranking.  RPM has them new, but they would cost a lot there.  Australia eBay has a few offered.  Search for P/N 4KG-81890-00-00 and for FJ1100 starter motor.  I saw starter repair kits (with bearings) from Arrowhead there, also.

Once you have any good starter in the bike, you can see about repairing the starter that you have now.  Once repaired, you can install it in your bike, or sell it on eBay to reduce your costs.  The bearings and end caps are not available from Yamaha now.  The same starter fits '84-'93 FJ, XJ1200, and XJR1300.  Best wishes.

http://www.2wheelpros.com/oem-parts/1985-yamaha-fj1100n-starting-motor-assembly.html (http://www.2wheelpros.com/oem-parts/1985-yamaha-fj1100n-starting-motor-assembly.html)
.


Title: Re: Starter Motor Noise
Post by: Sparky84 on June 22, 2019, 11:11:45 PM
For awhile now, my starter gives out a howl at the end of starting up, whether cold or hot, can’t hear it while it’s turning motor over but usually at the end and also when the starter button gets stuck.  Sort of sounds like a dry bearing.  Any clues on the culprit.  Btw, 84 FJ
Sparky,

It sounds like a dry bearing.  If you can find a breaker yard or used parts dealer, the newer versions of the starter have four brushes, not two, for better cranking.  RPM has them new, but they would cost a lot there.  Australia eBay has a few offered.  Search for P/N 4KG-81890-00-00 and for FJ1100 starter motor.  I saw starter repair kits (with bearings) from Arrowhead there, also.

Once you have any good starter in the bike, you can see about repairing the starter that you have now.  Once repaired, you can install it in your bike, or sell it on eBay to reduce your costs.  The bearings and end caps are not available from Yamaha now.  The same starter fits '84-'93 FJ, XJ1200, and XJR1300.  Best wishes.

[url]http://www.2wheelpros.com/oem-parts/1985-yamaha-fj1100n-starting-motor-assembly.html[/url] ([url]http://www.2wheelpros.com/oem-parts/1985-yamaha-fj1100n-starting-motor-assembly.html[/url])
.

Thanks Red

Thanks Troy


Title: Re: Starter Motor Noise
Post by: FJ_Hooligan on June 23, 2019, 09:03:19 AM
They are very easy to take apart.  Kind of a pain to get out, you have to remove the slave cylinder and maybe the CS cover? 

Just grease the bushings.


Title: Re: Starter Motor Noise
Post by: racerrad8 on June 23, 2019, 04:46:37 PM
Wow, $495.00 for a new starter from Yamaha...

That's crazy, I sell the genuine Yamaha starters much cheaper: Genuine Yamaha 4 Brush Starter (http://www.rpmracingca.com/proddetail.asp?prod=4KG-81890-00)

I used to stock the rebuild kits, but no one bought them. i can probably still get one if you go that way. With that said, the rebuild kit that I offer did not have the rear housing bushing and that is where they have the most wear.

I do not recommend aftermarket offshore starters as the poor internal quality can leave you stranded: Starter motor for '89 FJ1200 (http://www.fjowners.com/index.php?topic=15427.msg155817#msg155817)

Randy - RPM



Title: Re: Starter Motor Noise
Post by: Sparky84 on August 18, 2019, 02:48:45 AM
Getting noisier,
Found one from a 07 XJR1300 but will it fit and is it a 4 or 2 pole?


Title: Re: Starter Motor Noise
Post by: Sparky84 on August 18, 2019, 06:02:33 AM
Getting noisier,
Found one from a 07 XJR1300 but will it fit and is it a 4 or 2 pole?
Found out its a 5EA-81890-00, will it fit


Title: Re: Starter Motor Noise
Post by: racerrad8 on August 18, 2019, 04:52:07 PM
Getting noisier,
Found one from a 07 XJR1300 but will it fit and is it a 4 or 2 pole?

It is a four pole. They stopped the two poles in the 90's.

Found out its a 5EA-81890-00, will it fit

That is incorrect, that is the correct starter. It might be silver instead of black, but it will fit the engine without issue.

Randy - RPM


Title: Re: Starter Motor Noise
Post by: Sparky84 on August 19, 2019, 04:43:16 AM
Getting noisier,
Found one from a 07 XJR1300 but will it fit and is it a 4 or 2 pole?

It is a four pole. They stopped the two poles in the 90's.

Found out its a 5EA-81890-00, will it fit


That is incorrect, that is the correct starter. It might be silver instead of black, but it will fit the engine without issue.

Randy - RPM
It is silver, hopefully I can paint the cover.

Thanks Randy


Title: Re: Starter Motor Noise
Post by: Sparky84 on August 30, 2019, 01:54:39 PM
Finally got the starter motor, it’s black not silver.
So how can I tell what model it is ? There are no markings on it apart from some on the black cover which don’t correspond to anything.


Title: Re: Starter Motor Noise
Post by: Sparky84 on August 31, 2019, 02:36:52 AM
Well it took a bit to pull out and then a bit to put in but it’s done.
No more howl on start up :good2:



Title: Re: Starter Motor Noise
Post by: Troyskie on August 31, 2019, 02:43:09 AM
Noice!

Being black should match the original.

Was it plug and play as it seems from your post?


Title: Re: Starter Motor Noise
Post by: Troyskie on August 31, 2019, 02:47:58 AM
Red and Hooligan, I'm pulling my bike apart for all sorts of things not related to this.

I think I'll follow what you've both suggested. No need, as it seems to work fine.
However, after 35 years I think a bit of service might be due.


Title: Re: Starter Motor Noise
Post by: Sparky84 on August 31, 2019, 03:44:58 AM
Noice!

Being black should match the original.

Was it plug and play as it seems from your post?
It seems it was but I didn’t measure the length back to the o ring and gear, but I did have a bit of trouble installing it, which was good as it meant it was the gears meshing.
But it works so all good


Title: Re: Starter Motor Noise
Post by: Troyskie on August 31, 2019, 04:47:12 AM
Sweeeeeeeet


Title: Re: Starter Motor Noise
Post by: racerrad8 on September 01, 2019, 06:05:52 PM
So how can I tell what model it is ? There are no markings on it apart from some on the black cover which don’t correspond to anything.

Sorry, I missed this earlier.

The two brush starter motors have a phillips/JIS screw in the body which hold the two magnets.

The four brush starters have the magnets epoxied in and no visible screws.

Randy - RPM


Title: Re: Starter Motor Noise
Post by: Sparky84 on September 04, 2019, 06:43:09 AM
So how can I tell what model it is ? There are no markings on it apart from some on the black cover which don’t correspond to anything.

Sorry, I missed this earlier.

The two brush starter motors have a phillips/JIS screw in the body which hold the two magnets.

The four brush starters have the magnets epoxied in and no visible screws.

Randy - RPM
Good to know, one taken out had the screws and now I know what they were for, other had no screws.


But I have noticed a slight howl still there when starting, like a dry bearing but not all the time that starter is engaged, more as it’s just started and finger is coming off button.