Author Topic: Frame bolt when installing crash bar  (Read 360 times)

Offline nwguy

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Frame bolt when installing crash bar
« on: August 04, 2025, 04:04:24 PM »
The crash bar that came with my 99' Bassa appears to use this big allen bolt that connects the frame sections together for the lower mount. Will the frame separate if I remove the bolt while the bike is on its centerstand? What's the safe way to remove and reinstall it? Jack up the bike from under the engine?



1999 Moto Guzzi Bassa, 06 Yamaha Morphous

Past: 2020 Husky Svartpilen, 08 Norge, 07 Burgman, 3 Buell Lightnings, 02 BMW R1150RS, 05 Ducati Multistrada, Kawasaki Concours, Kawasaki Vulcan 1500 Classic, 02 Honda ST110, Aprilia Falco, Suzuki VX800, Yamaha Radian, Suzuki TS185, Yamaha RD400

Offline Dave Swanson

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Re: Frame bolt when installing crash bar
« Reply #1 on: August 04, 2025, 04:31:14 PM »
The crash bar that came with my 99' Bassa appears to use this big allen bolt that connects the frame sections together for the lower mount. Will the frame separate if I remove the bolt while the bike is on its centerstand? What's the safe way to remove and reinstall it? Jack up the bike from under the engine?





As long as the main frame to engine bolt is tight below it there is no worries taking it out to install your crashbar
Dave Swanson - Northern IL
1935 GTS
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1973 V7 Sport
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1977 Lemans 1.2
1980 T3 California
1993 1000S - Sparklehorse
1998 V11 EV HDM
2004 V11S - Eraldo-ized
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Online Tom H

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Re: Frame bolt when installing crash bar
« Reply #2 on: August 04, 2025, 05:35:13 PM »
I agree with what Dave wrote. But I would support the engine with a jack. The engine will not fall out when you remove the bolts, but the frame could shift just a tad to give issues getting the bolt back in.

You can always try it without the jack, and if aligning for the bolt is an issue, jack it up a touch.

Also depending on what length bolt and what crash bar mount, you may need a longer bolt??? Try it and see.

Just my coupla cents,
Tom
« Last Edit: August 04, 2025, 05:37:33 PM by Tom H »
2004 Cali EV Touring
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Offline nwguy

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Re: Frame bolt when installing crash bar
« Reply #3 on: August 04, 2025, 11:40:47 PM »
Yeah, definitely will need a longer bolt. Thanks.
1999 Moto Guzzi Bassa, 06 Yamaha Morphous

Past: 2020 Husky Svartpilen, 08 Norge, 07 Burgman, 3 Buell Lightnings, 02 BMW R1150RS, 05 Ducati Multistrada, Kawasaki Concours, Kawasaki Vulcan 1500 Classic, 02 Honda ST110, Aprilia Falco, Suzuki VX800, Yamaha Radian, Suzuki TS185, Yamaha RD400

 

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