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CA95 drives like a gyroscope

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SpectrumAd
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CA95 drives like a gyroscope

Post by SpectrumAd » Sun Mar 16, 2025 7:19 pm

I have a 1961 CA95 that I have recently put back on the road after 40 years of slumber. When driving, starting at about 20-25 mph, the steering feels heavy and it feels like I am driving a gyroscope - constantly swaying from side to side. Everything is tight and the front wheel seems to be true. Anyone ever experienced this?
Thanks!

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sky.fred
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Re: CA95 drives like a gyroscope

Post by sky.fred » Mon Mar 17, 2025 7:03 am

Steering bearings too tight

SpectrumAd
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Re: CA95 drives like a gyroscope

Post by SpectrumAd » Mon Mar 17, 2025 9:15 am

I have loosend the stem to the point there is slop, but it still drives the same. I may need to tear it down and replace the bearings, just to rule this out. The strangest sensation I have ever had on 2 wheels.

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Muddy
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Location: Sunshine Coast, QLD, Australia

Re: CA95 drives like a gyroscope

Post by Muddy » Mon Mar 17, 2025 7:04 pm

Sounds like steering head bearings either too loose, too tight, some missing or lube gone hard. Check the wheel bearing while you are at it.
Thanks.

Regards

Muddy

'64 C72
'63 C72

SpectrumAd
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Re: CA95 drives like a gyroscope

Post by SpectrumAd » Mon Mar 17, 2025 8:31 pm

Thanks for all the input. I was hoping to not have to tear the front apart, but it seems to be necessary.

I appreciate it.
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Muddy
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Re: CA95 drives like a gyroscope

Post by Muddy » Mon Mar 17, 2025 8:56 pm

Sorry if this is too rudimentary of if you have already done this, but put the bike on the centre stand if it has one. Put a jack under the front of the engine case (using a block of timber) lifting the front wheel just clear of the ground. Spin the front wheel, making sure the brakes are not binding and the front wheel bearings are smooth and free. Then turn the handle bars the full travel from side to side several times. The steering head and handle bars should move smoothly from side to side and not encounter any clunks or stiffness. When the handle bars are in the central (neutral steering) position, the bars and steering head should just drop smoothly to either side under it's own weight. With the handle bars in the central position, grab the front wheel near the axle and move the wheel gently backward and forward along the centreline of the bike - there should be no slop or free play if the steering head bearings are OK and adjusted correctly.

Any failures on the above method and unfortunately you are definitely up for a strip down and repair.
Thanks.

Regards

Muddy

'64 C72
'63 C72

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