Yamaha SR500 & SR400 Forum

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PostPosted: Sat Jun 06, 2015 9:20 pm 
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Joined: Wed Jun 05, 2013 9:07 pm
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Location: South Jersey USA
I tightened up my steering stem bearings today, not very loose, but not tight.
Many people forget to check them.

Test ride tomorrow.


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PostPosted: Sun Jun 07, 2015 7:07 pm 
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Did 130 miles, no more tendency to wobble at high speeds.


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PostPosted: Fri Aug 07, 2015 12:40 pm 
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Joined: Mon Feb 18, 2013 5:28 pm
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Location: San Jose,CA
NJ-brett wrote:
Did 130 miles, no more tendency to wobble at high speeds.


What if any was your torque setting?


Thanks!


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PostPosted: Fri Aug 07, 2015 7:30 pm 
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Joined: Fri Mar 06, 2015 7:39 pm
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Location: Metro Atlanta, GA
Does it require a special socket or wrench?
It looks like it takes a hook spanner, though I've been wrong before.

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Screw this, I'm going riding!

"Mulder, toads just fell from the sky."
"Guess their parachutes didn't open."


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PostPosted: Sat Aug 08, 2015 10:17 pm 
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I just took the play out of the bearings, I just tapped the ring around with a drift and a hammer.

I do most things by feel, loosen nut, tap ring till I fell a bit of resistance and tighten the nut.
You have to loosen the top fork clamp bolts.


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PostPosted: Sun Aug 09, 2015 12:02 pm 
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How often should I check the steering stem bearings? (miles?)

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Screw this, I'm going riding!

"Mulder, toads just fell from the sky."
"Guess their parachutes didn't open."


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PostPosted: Sun Aug 09, 2015 7:03 pm 
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They likely do not change much after the initial wear in.
Its likely in the service manual (I do not have one yet).

I bet it would be a very good idea to remove things and grease the bearings, or just replace them with roller bearings, not sure why any bike uses ball bearings in this day and age...


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PostPosted: Sun Aug 09, 2015 7:07 pm 
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Location: South Central Wisconsin, USA
They use them because they are CHEAP, not because they are the best bearing for the application.

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1981 SR500 old school 'Caff Racer'
2009 Suzuki TU250X
In all things maintain thy uprightness lest the ground rise up and smite thee.


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PostPosted: Fri Aug 14, 2015 10:05 pm 
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Location: Metro Atlanta, GA
What grease should be used?
The manual always mentions lithium grease.
What it does not mention, if whether it is white lithium grease (Whitelube), or lithium compatible bearing grease (JT-8, and such similar greases)

I also have some Mobil Moly-bearing grease at my disposal.

For some reason, the greases I find locally don't usually state whether they are lithium greases. Some state that they are lithium compatible

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"Mulder, toads just fell from the sky."
"Guess their parachutes didn't open."


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PostPosted: Sat Aug 15, 2015 10:49 am 
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Location: South Central Wisconsin, USA
Any 'marine grade', ie, suitable where water contamination may be an issue is what to use (likewise, use it on a swingarm rebuild).

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1981 SR500 old school 'Caff Racer'
2009 Suzuki TU250X
In all things maintain thy uprightness lest the ground rise up and smite thee.


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