Advanced Search

Search Results (Searched for: gs swing arm)

Replied by jowek70 on topic 82 kz1000 ground up build

08 Dec 2021 12:16 - 08 Dec 2021 12:16
jowek70's Avatar jowek70
Nice project, you may want to consider setting the motor further back. I know someone who had an early GSXR1100 motor in a Harris that was built for a Z1000 motor. The front sprocket is so far ahead of the swing arm pivot that you will need to run the chain loose to avoid the suspension movement being affected as the swing arm goes past level (the longest point)


Motor is simply laying in the frame in these photos.  I have to get the mounts made up which will lift it into a much better position.  Winter project for my friend with a 3d printer to help me out before I have the mounts made out of steel and welded to the frame.

Replied by Webbie1 on topic Where do you start?

08 Dec 2021 06:46
Webbie1's Avatar Webbie1
 In my mind, it seems the way to do it is to disassemble everything, and refurb/refinish pieces as they come off.  Finally ending with the frame, with a bunch of refurbed / refinished parts to put back on it after the frame gets blasted and coated (paint or powder).  

Have you done this before with a motorcycle (100% tear down and restore).  It can take years to finish a project like that, and many many folks never make it to the end before losing interest.  It seems like it's already been in your hands for a few years, as you mention.

Personally, I would focus on the basic mechanical function and safety components, and then ride it.  If you really love it, go all out.  If not, you have a good ready to ride bike that should be easy to sell.  If the first thing you do it create a giant mount of parts, it's a ton of time and work to get out of the project.  Even parting it out is a ton of work.  It's much easier to sell a fully assembled bike.

I've never been hung up looks.  I focus on function.  As you already have done, I have repainted many rusty battery boxes.  And you already started on the carbs. 

Assuming you think the engine internals are not damaged, I would do a valve adjustment and call the engine done for now.  19k is low for these engines.  My Z1R has 45k miles on it and runs great.

I would focus on the following:
* steering head bearings
* swing arm bearings
* front brake system 
* rear brake system 
* tires
* carbs
* valve adjustment
* timing check

The only other thing I'd look at is to check the wiring harness for obvious damage or hacking/modifications, just to make sure there aren't any real obvious issues.

When that's done just ride it, warts and all, and see if it's a keeper.

Well, the engine turns over, with the starter or with the kick start lever.   I put a compression tester on it and the numbers were lower than expected, but the bike is definitely NOT warmed up and it's been sitting for over 20 years.  So not sure if those numbers are really meaningful at all.   It was running when he put it away....I bought this from a co-worker / friend, so I can trust the history that I'm getting on it.

                                      Warner
 

Replied by seanbarney41 on topic Where do you start?

07 Dec 2021 13:21
seanbarney41's Avatar seanbarney41
 In my mind, it seems the way to do it is to disassemble everything, and refurb/refinish pieces as they come off.  Finally ending with the frame, with a bunch of refurbed / refinished parts to put back on it after the frame gets blasted and coated (paint or powder).  

Have you done this before with a motorcycle (100% tear down and restore).  It can take years to finish a project like that, and many many folks never make it to the end before losing interest.  It seems like it's already been in your hands for a few years, as you mention.

Personally, I would focus on the basic mechanical function and safety components, and then ride it.  If you really love it, go all out.  If not, you have a good ready to ride bike that should be easy to sell.  If the first thing you do it create a giant mount of parts, it's a ton of time and work to get out of the project.  Even parting it out is a ton of work.  It's much easier to sell a fully assembled bike.

I've never been hung up looks.  I focus on function.  As you already have done, I have repainted many rusty battery boxes.  And you already started on the carbs. 

Assuming you think the engine internals are not damaged, I would do a valve adjustment and call the engine done for now.  19k is low for these engines.  My Z1R has 45k miles on it and runs great.

I would focus on the following:
* steering head bearings
* swing arm bearings
* front brake system 
* rear brake system 
* tires
* carbs
* valve adjustment
* timing check

The only other thing I'd look at is to check the wiring harness for obvious damage or hacking/modifications, just to make sure there aren't any real obvious issues.

When that's done just ride it, warts and all, and see if it's a keeper.
This is bonafide gospel right here.
 

Replied by DOHC on topic Where do you start?

07 Dec 2021 09:40 - 07 Dec 2021 11:55
DOHC's Avatar DOHC
 In my mind, it seems the way to do it is to disassemble everything, and refurb/refinish pieces as they come off.  Finally ending with the frame, with a bunch of refurbed / refinished parts to put back on it after the frame gets blasted and coated (paint or powder).  

Have you done this before with a motorcycle (100% tear down and restore).  It can take years to finish a project like that, and many many folks never make it to the end before losing interest.  It seems like it's already been in your hands for a few years, as you mention.

Personally, I would focus on the basic mechanical function and safety components, and then ride it.  If you really love it, go all out.  If not, you have a good ready to ride bike that should be easy to sell.  If the first thing you do it create a giant mount of parts, it's a ton of time and work to get out of the project.  Even parting it out is a ton of work.  It's much easier to sell a fully assembled bike.

I've never been hung up looks.  I focus on function.  As you already have done, I have repainted many rusty battery boxes.  And you already started on the carbs. 

Assuming you think the engine internals are not damaged, I would do a valve adjustment and call the engine done for now.  19k is low for these engines.  My Z1R has 45k miles on it and runs great.

I would focus on the following:
* steering head bearings
* swing arm bearings
* front brake system 
* rear brake system 
* tires
* carbs
* valve adjustment
* timing check

The only other thing I'd look at is to check the wiring harness for obvious damage or hacking/modifications, just to make sure there aren't any real obvious issues.

When that's done just ride it, warts and all, and see if it's a keeper.

Replied by zedhead on topic GPz750A3 Unitrak - last of the air-cooled?

07 Dec 2021 07:23
zedhead's Avatar zedhead
I was also thinking about making some 'period correct' modifications while I was refreshing this bike.... things like a fork brace, braced swinging arm etc. It's already got a Harris 4:1 exhaust tat needs some refurbishment, and I have an aftermarket Japanese 4:1 as well tat is in slightly better condition, and of course it has the twin headlght conversion, but I was wondering what other mods might be suitable, and of benefit? Fork internals upgrade? Frame bracing? Anyone?

Replied by hardrockminer on topic 1978 KZ650 Bike Build

06 Dec 2021 17:51
hardrockminer's Avatar hardrockminer
I've been stuck for a long time trying to get the swingarm bolt out.  I finally had to get a shop to cut it out, so things are beginning to move a bit.  Frame painted on the weekend.  Engine in the frame today.

 

Replied by MauiZ1 on topic 1973 Z1 Maui

30 Nov 2021 07:15
MauiZ1's Avatar MauiZ1
Steve just curious. I see all your electric parts are on the left side of your bike, did you do that or was it the former owner or is it normal for a Z1B in the US ?
Because i am working on the electric parts of my bike at the moment and all the parts are on the right side of my bike, a Z1B 1975 europe.
Willem
No my bike was ruined in 86 in the wreck. I bought a frame but was ripped off. It's a KZ900 frame so I used the parts from the wrecked KZ900 I had on hand. It will never be stock again.   It's mine and I'm doing all the mods I want now making it faster, more stable and going with Mag's off a KZ750G to customize how I always wanted it to be.   
The frame is thicker and I'm adding gussets to stiffen up the frame. Went with a 98 KZP swing arm that is 1 1/2" longer and stronger than stock. NO MORE WOBBLES. 
In your case it looks like the wires were barely touched. I'd solder the bare parts, test the windings for shorts against the case and if good clean and coat the wires then put it back together. 
Keep us posted on your progress. 
Steve
Actually, the  bike is a Z1 built in 1972. I think they were different.

 

Replied by SWest on topic 1973 Z1 Maui

29 Nov 2021 11:41 - 29 Nov 2021 11:42
SWest's Avatar SWest
Steve just curious. I see all your electric parts are on the left side of your bike, did you do that or was it the former owner or is it normal for a Z1B in the US ?
Because i am working on the electric parts of my bike at the moment and all the parts are on the right side of my bike, a Z1B 1975 europe.
Willem
No my bike was ruined in 86 in the wreck. I bought a frame but was ripped off. It's a KZ900 frame so I used the parts from the wrecked KZ900 I had on hand. It will never be stock again.   It's mine and I'm doing all the mods I want now making it faster, more stable and going with Mag's off a KZ750G to customize how I always wanted it to be.   
The frame is thicker and I'm adding gussets to stiffen up the frame. Went with a 98 KZP swing arm that is 1 1/2" longer and stronger than stock. NO MORE WOBBLES. 
In your case it looks like the wires were barely touched. I'd solder the bare parts, test the windings for shorts against the case and if good clean and coat the wires then put it back together. 
Keep us posted on your progress. 
Steve

 

Replied by scubaanders on topic Who can resist a non runner? The Orson Welles project (1984) Gpz1100 1984

14 Nov 2021 11:33 - 14 Nov 2021 11:34
scubaanders's Avatar scubaanders
So I thought it would be a great idea to take both the front and rear wheel from a ZR-7 as I know that the ZR-7 front wheel fit like a charm in the Zephyr 1100 front fork. That way I would also get a 5’ rear wheel compared to the 4.5’ ZXR400 rear wheel I used on the Green Kwack.

Little did I know, more than that I have an fetish for suspended rear brake calipers with the torque arm anchored to the frame.




Ok, so if you want a suspended rear caliper there is no mix and match. The spacer that holds the caliper on to the rear wheel axle has to poke in to the rear wheel. Otherwise it looks like this:



I thought that the caliper could live together with the ZR-7, but that meant that the oil seals would rub against each other.

So now I have yet one more hose real made in Japan and a second ZXR400 rear wheel and that solved everything, of course I will have to remake the spacers, but that what our old Blomqvist lathe is for.

This is what the rear set up looks like




and it fits like a charm. 



On that note I ended the day by ordered all new bearings, needle bearings and seals for the wheels and swing arm, so I hope that the family will work up their appetite for oat meal. 

//A

Replied by scubaanders on topic Who can resist a non runner? The Orson Welles project (1984) Gpz1100 1984

11 Nov 2021 10:03 - 11 Nov 2021 12:08
scubaanders's Avatar scubaanders
So the frame was now in the way, busting the frame or bending the axle was not an option!

But as the saying goes, when things doesn’t fit revert to old methods.
Brought old the old file and went the Millyard route, marked up where the swing arm hit the frame, and as the swing arm outer tube has some good +5mm of goods I went down.



Took of a good 2,5mm at the thickest point on both sides.



Then it fits and thats how Clearance came to be, if someone ever wondered.




That’s when I realized that there was something wrong with the ZR-7 rear wheel and the ZXR rear brake caliper, they just didn’t really like each other. . . . . . .
//Anders

Displaying 241 - 250 out of 7234 results.

Powered by Kunena Forum