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75 Z1B weird frame issue
- luc
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Bearings and races are fine but I can see that the steering head is tilted.
All the welds look perfect and no cracks whatsoever.
No way that the frame/steering head could have been crashed and repaired/rewelded without leaving some signs of it.
Don't know what to make of it but I have no idea how to fix it short of major cutting/welding
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- guitargeek
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1980 KZ750-H1 (slightly altered)
1987 KZ1000-P6 "Ponch"
1979 GS1000 "Dadzuki"
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- Bad Kaw
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- Flying Squirell
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785-234-5007
PS> I will put my name behind Brian Lewis and the work that he does; you will not have a problem with his work, I've known him for over 20 years.
78 Kawasaki Z1R
81 Kawasaki KZ1000J (mods)
82 Kawasaki ELR Clone (1000 J)
82 Kawasaki KZ750R1/GPz750 ELR-ed
70 Kawasaki KV75
83 Honda CB1100F (few mods)
79 Suzuki GS1000 (rolling frame / project / junk)
84 Suzuki GS1150ES (modified project)
83 Yamaha XJ900R (project / junk)
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- PLUMMEN
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that would be my suggestion also !B)poor ol z1s were made for wheelies,sometimes it takes years for thedamage to finally show itself.Brian Lewis at Extreme Cycle in Topeka, Kansas. He straightens frames for AMA road race teams as well as Joe-average-motorcyclist. He's reasonable. Call him and drop my name (Kenton Russell).
785-234-5007
PS> I will put my name behind Brian Lewis and the work that he does; you will not have a problem with his work, I've known him for over 20 years.
Still recovering,some days are better than others.
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- guitargeek
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1980 KZ750-H1 (slightly altered)
1987 KZ1000-P6 "Ponch"
1979 GS1000 "Dadzuki"
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- luc
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- rstnick
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why one side of the front tire is wearing more than the other side
That's normal.
A left turn is a larger arc than a right turn (where one drives/rides on the right side of the road).
This causes different wear patterns on the front tire over time.
Rob
CANADA
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1978 KZ650 C2, 130K kms, Delkevic ex, EI, CVK32, PMC easy clutch, ATK fork brace, steering damper, braced swingarm, 18" Z1R front wheel.
2000 ZRX1100
2011 Ninja 250R
2005 z750s
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- mtkawboy
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78-KZ1000/1105, 80 KZ1000, 82 Kawasaki GPZ750, 95 Harley Fatboy, 80 Suzuki GS1100ET, 81 GS1100E parts bike, 83 GS1100SD Katana/1394,78 Yamaha XT500, 81 Yamaha XS650, 78 Yamaha XS650E, 48 Whizzer model J motorbike, 71 Honda CT70H, 71 Honda CT70, 81 IT 250 Yamaha,82 Honda XL100S owned
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- luc
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I takled to a guy that repair/straighten frame and I'm bring the bike next tuesday to have it it fixed.
He said that he will put the bike in a jig, using the rear swing arm mounting points as a reference and "twist" back the head in the correct position.
he also say that the steering head/frame is pretty strong in a front to back load but not on a side load and can twist easily if the bike ever went down
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- guitargeek
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You should definitely go back with the tapered roller steering head bearings, too, and check the swingarm bearings while you have it out. I forget... did the Z1B have bearings or bushings for the swingarm?
1980 KZ750-H1 (slightly altered)
1987 KZ1000-P6 "Ponch"
1979 GS1000 "Dadzuki"
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- PLUMMEN
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anybody who has ever looked at the welds on a z1 frame can tell you the construction leaves a lot of room for improvement to say the least.i have the rest of my frame already braced up but havent done steering head bracing yet just for that reason, want it on a frame jig and everything pushed straight before i weld the rest ofthe bracing onI dont know about them being welded on crooked on purpose, but they {some} were crooked from the factory in the early Z1 days. A friend ran one of the first ones in the country at Bonneville and the front tire was not in line with the rear, did not track the same. They had to put the frame in a jig and cut & reweld the steering head on correctly. How many were like that I couldnt say, but Id guess your problem is dryed up or missing steering head ball bearings. replace them with tapered roller bearings if theres any slop in the front end. Whether you believe the above story or not is up to you but it is a fact. Early GS1100's had the same problem and the same fix.
Still recovering,some days are better than others.
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- 531blackbanshee
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skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!
billybiltit.blogspot.com/
www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work
kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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