Dutch 1977 Z1000 Build

Wiers wrote: About the muffler.

I can make something at a friend of mine but than I won't have my bike with me for test fitting.

And when I am at my bike and it does not fit I don't have the tools to adjust it
Most stuff from Ali is for mopeds and scooters and the diameter is 54mm and my collector is 63,5mm.
But I have all the stuff I need now to make the connection.

Also after starting I had some minor leaks :S

Head gasket, oil pressure switch and exit of generator cables.
The last 2 I can fix but the first one sucks.

One piece or two piece head gasket?
Steve

Thanks guys,i am very happy with the results so far.
Steve,
I do not know what kind of gasket it has, I only took of the valve gasket and replaced it with a new one plus liquid gasket.
Is there a way to stop the leakage without taking the heads of?
That would be great.
Eric

"Het werkt".

Congratulations!


Sounds and looks good.

No, chances are it's a two piece head gasket. The O ring around the cam chain tunnel has a habit of cracking. I use a one piece fiber one. No more leaks.
kzrider.com/forum/13-bike-related/599607-the-good-guys
Steve

Nice sound for sure. Beauty job. Try running it for a while to warm up a couple of times and then re-torque the head nuts as per the manual. Also, check your o-ring on the oil pressure switch as it may have cracked if old or re-used. Put a new fiber one in there with a light dab of grease if need be to stop the weeping.
Keep at it.
David

Wiers...
Try retorqueing the head ...lossen each head bolt at a time following the torque sequence and retorque them.

Wiers, great looking build. I hate to be the bearer of bad news. As nice as it is to bolt on the Suzuki front end it comes with some issues. I started with a GSXR 750 and am now switching it to a GSXR 1100 front end, as they are about 20mm. The issues that come with this set up are:
1. turning radius sucks it takes a 20 point turn to get it turned around in the garage or driveway but did not hinder turning while riding.
2. The offset in the triple trees is significantly different causing loss of trail.
3. Ground clearance. In wheel swap alone you lost 25mm on the front end, with the fork swap you lost another 25mm. When I rode my bike like this I had to take wide right hand turns so I did not scrape my exhaust speed bumps are also an issue.

Here is a link to a good explanation of rake and trail, something I did not bother to think about prior to building my bike.

www.motorcycle-superstore.com/4125/mngr/...trail-explained.aspx

kaw-a-holic wrote: Wiers, great looking build. I hate to be the bearer of bad news. As nice as it is to bolt on the Suzuki front end it comes with some issues. I started with a GSXR 750 and am now switching it to a GSXR 1100 front end, as they are about 20mm. The issues that come with this set up are:
1. turning radius sucks it takes a 20 point turn to get it turned around in the garage or driveway but did not hinder turning while riding.
2. The offset in the triple trees is significantly different causing loss of trail.
3. Ground clearance. In wheel swap alone you lost 25mm on the front end, with the fork swap you lost another 25mm. When I rode my bike like this I had to take wide right hand turns so I did not scrape my exhaust speed bumps are also an issue.

Here is a link to a good explanation of rake and trail, something I did not bother to think about prior to building my bike.

www.motorcycle-superstore.com/4125/mngr/...trail-explained.aspx

Your comment on "loss of trail" is a common misconception, the GSXR {or most modern bikes} have LESS offset, therefore you end up with MORE trail' . Most think that less offset automatically means less trail but its the exact opposite,

As the fork tubes move forward in relation to the steering stem, the angle between the front wheel axis and the point where Rake and the pavement intersect narrows, so Trail decreases. As you’d expect decreasing the offset, which moves the wheel closer to the steering stem increases Trail

I've done a few front end conversions and have a Trail calculator to work out offsets for the custom clamps I get made up. The 1989 GSXR1100 is a good model to get forks for a conversion {if you don't want to use USD forks} , they are 43mm Right side up forks that have multiple rebound, preload and compression damping adjustment, They are very popular in classic racing here, on the 1989 1100 they had the clipons above the top clamp so the stanchions are a couple of inches longer than the 750, I have 2 sets of these forks, I also have 41mm and 45mm forks, I will be using fork extensions on the 45's, the 41's are off a CB1000F and are plenty long enough for my intended application... More trail and a smaller front wheel can cause its own problems if not set up properly, the 17 inch wheel steers faster than the 19, the more trail due to the clamp offset being less, will make the front more stable but slightly harder to turn in, combine this with a smaller, more nimble 17 inch front wheel and you can end up with a poorly set up bike that wants to "fall" into corners. I see lots of poorly done conversions on the internet, especially swingarm swaps {mono shock conversions!!} , when it comes to suspension on a motorcycle, there's a hell of a lot more in it than just bolting on newer parts. I have no interest what so ever in bikes with long swingarms and lowered or any other mod that makes the bike handle worse, I'm more interested in sensible mods to make these old girls handle better than stock, I've never been interested in drag racing or building look at me, poor handling Instagram bikes....

I put new oil rings under the oil pressure switch but I was able to tighten the top plastic part a little further so that should be oke.

Retorqueing the head bolts sounds like the a good and easy solution.
What is the best way? Bolt by bolt or loosen all bolts and retorque them all? I am afraid that If I break one of them I have to take the whole engine apart to fix it.

When I am back home end of the week I will measure the rake and trail and put it in the calculator.
The GSXR 1100 front fork was on the bike when I bought it and from a lot of reading on the forum it looks like it should be one of the longest fits you can bolt on without extensions.
It is a pita to turn it around in the garage but that is a small compromise as long as it handles well on the road.
That however I have to find out next week after finishing the exhaust and checking everything over a couple of times.
Thanks for all the input and tips.
Eric

From what I understand,the ZXR forks are longer (the longest upsydupsy jap forks). Thats why I went with them on my build. The bike is
still too low. I took my fork tops in today to get them extended.Ill let you knoiw how it goes ( and how much it costs).

Wiers wrote: It is a pita to turn it around in the garage but that is a small compromise as long as it handles well on the road.

I believe if you do that one too many times with a KZ you will find the sidestand tangs spread which will cause the bike to lean over further when it's on that stand. Ed