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1981 gpz1100 project resto-mod 04 Oct 2020 09:15 #836141

  • 577nitro
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Rick H. wrote: Nice looking bike, very nice. And it's a brave man that tries to induce instability by whacking a handlebar end especially at high speed!

Rick H.


Thanks...yeah I started lightly on the whacking of the bars...and worked up to harder hits, so I knew basically how it was going to react. I would never have tried it in stock form.

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1981 gpz1100 project resto-mod 04 Oct 2020 11:49 #836148

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So a question to those who have done the ZRX swingarm upgrade...because of the lower bracing I had to cut the Kerker pipe just past the collector and then fabricate a new curved section to clear the swingarm. I bought some 2.5 inch exhaust pipe off ebay and then made the flanges to fit it. It was bitch and took a lot of working and fitting to get it to clear. I tried to get a shop to help me but nobody wanted to try...too small a job or to scared... Did anybody have similar issues and how did you solve it?

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1981 gpz1100 project resto-mod 04 Oct 2020 22:31 #836184

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The gsxr wheels looks great on there. I have deal with simular exhaust problems before. I usually just buy a mandrel bend and play around with slices of it till i get the clearance i need. then welder up. masking tape does a surprisingly good job of holding the pieces if you wrap it super tight all the way round.

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Last edit: by DoctoRot.

1981 gpz1100 project resto-mod 05 Oct 2020 08:51 #836201

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What an inspiring project. I just started stripping the Mrs' GPz11 just Saturday. This build has given me a bunch of ideas. Thanks OP!
Don't be ridiculous! It's only a flesh wound!

Wife's little bike... 1984 GPZ 550 Kerker and DynaJet stage I kit
Wife's BIG bike...... 1981 GPZ 1100 Kerker and factory FI Mikuni RS34s W/ K&N pods

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1981 gpz1100 project resto-mod 05 Oct 2020 09:23 #836205

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slayer61 wrote: What an inspiring project. I just started stripping the Mrs' GPz11 just Saturday. This build has given me a bunch of ideas. Thanks OP!


Thanks...be happy to give any advice on the upgrades... I will admit I took a lot of advice and information from Dr. Gamma and his superbike restoration. I also
have old work buddy who, like Dr. Gamma (Bob) raced these bikes back in the day...wealth of information.

The old guys know their shit, straight up!

577Nitro-

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Last edit: by 577nitro. Reason: Spelling...I spelled Bob as Dave...Doh!
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