Bar risers - Road Star Warrior Forum : Yamaha Star Warrior Forums

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Old 05-31-2019, 09:14 PM   #1 (permalink)
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Default Bar risers

I installed 1 1/2 in bar risers on my tt bars and now I am getting a clicking noise in one of the sides where it the bars enter the forks when I move the bars slightly. The bolt doesn't look like it loosened at all not sure if it could have broke in the bars. Anyone have any info on what if could be
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Old 05-31-2019, 09:22 PM   #2 (permalink)
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1. What size bolt is being used for the TT bar? Diameter & thread
2. What is the O.D. of the 1-1/2" riser?
2. Is the bolt torqued?
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Old 05-31-2019, 09:29 PM   #3 (permalink)
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Is there a flat washer spacer between the new 1-1/2" riser and the top tree steel bushing?
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Old 05-31-2019, 09:39 PM   #4 (permalink)
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some photos here of washer and top tree etc:
HD Deuce Risers-Flanders Wide Clubman Bar
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Old 06-01-2019, 11:49 AM   #5 (permalink)
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Exclamation Risers 101

Hulk316 ... In response to your PM and lack of information I've enclosed this earlier thread. I hope this explains the mechanics of the connection at the triple tree.

As stated in the PM, it's possible the threaded plug in the bottom of the TT bar for the riser bolt has come loose!?
gl

Quote:
Originally Posted by alanh View Post
Perhaps this will bring clearity to your new spacer assembly
__________________________________________

Stock top triple tree LH Riser Port (RP). Note that the OEM tree isn't flat across the RP as are the aftermarket trees.


LH Riser Bushing (14mm ID x 30mm OD x 40mm H) is akin to an automotive stabilizer or strut bushing and is a press fit into the tree and also not available from Yamaha as a separate part.


LH Riser Bushing with OEM Parts: Cupped rubber riser bushing SEAL and Spacer washer.
The top tree is counterbored 36mm ID to accommodate the Cupped rubber riser bushing SEAL.


Cupped rubber riser bushing SEAL assembled w/o Spacer washer. Take note that it sets flush and tight with the heavy inner wall bushing and is designed to prevent water/moisture entrapment.
It is not designed to prevent handlebar vibration.
The major ID of the Cupped rubber riser bushing SEAL is approx 1.25" (32mm) and fits perfectly with 1-1/4" bars/risers.


Spacer washer in place that is designed to isolate the stock riser from the top triple tree. Your new arrangement should mimic this assembly if you don't want handle bar vibration.
Take note that the spacer washer doesn't touch the rubber part or the counterbored hole in the top tree. It sits only on the heavy wall of the riser bushing and prevents any detrimental effect from over-torque of the riser bolts with the stock parts.
The spacer washer is 28mm OD x 14mm ID x 1.5mm Thk


Bottom view of riser bushing.
Take note that the heavy wall inner sleeve creates an isolation, both mechanically & electrically, to the bottom of the triple tree if using the OEM cable/harness chrome bracket.



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Here's OEM HD Deuce Risers on my current set-up. Note how large the big end is that is adjacent to the top tree (almost overhangs).
These risers presented a bit of a challenge as they aren't machined flat on the bottom and i chose to leave them as is and picked up a proper fitting rubber grommet and spacer that i customized to fit the gap between the tree and riser and also retain the isolation of the stock bushing design.





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Old 06-15-2019, 10:59 AM   #6 (permalink)
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Great explanation I plan on doing this soon so thanks
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Old 06-15-2019, 12:38 PM   #7 (permalink)
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Looks nice
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Old 06-17-2019, 12:21 PM   #8 (permalink)
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So did the OP figure out what was wrong with his set up?
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