Kawasaki FBG/Tracy h2b!!
- Thread starter Drewski
- Start date
squirley said:
Hey Jens! Thanks!
Ya, a little trimming here and there and it fit's just fine. The upper shock mounts were moved forward, more for effect than anything.
The axle is a stock zrx1100. I'll try to measure it when I get over there in a few days.
We have a little progress with the engine.
We decided to tear it down to have a look into why the kick starter wasn't working. It turned out that it was installed wrong. That makes me wonder who's been into this thing!! ??? That's not a mistake FBG would make. :-\
As well, when we had it all apart, we decided to make a drawing of the porting. This will be handy for reference as we proceed down this road. With the cylinder on a flat surface, we rolled a sheet of paper up to open up, pressing on to the cylinder walls. Then we reached into the cylinder with a pencil and shaded the port openings. The pencil does a good job of locating the edges of the ports. Pull the paper out and unroll it and you have a 'map' of your ports for that cylinder. Measurements can now be taken off the paper and compared. It's hard to describe, but easy to do. I'll post a pic of the results.
It's a poor pic, but I hope you get the idea.
As well, the intake side of the cylinders have been milled by FBG so that the Lectron carbs would flow in a short direct line into the cylinders. We were a little concerned that our Mukuni TMX flat-slides might contact the heads, which were not milled. We don't have the new carb boots to mount them yet, so we can't be sure it will be a problem. However, I had a chance to get some time on a milling machine yesterday, so I took it!!
Here are some pics that might shed some light on what I'm refering to.
Hopefully you can see how the heads portrude beyond the machined cylinders:
Here, we're starting the cutting. You can see that the centre cylinder head needs more milled off than the outside cylinder heads:
Now, we're pretty much done:
We're leaving the rest to look like a stock h2. From the front, you'll never know!
We removed nearly 3/4" of material. We should be good now.
I need to take some more pics of the finished product. I'll do that today and post them later.
We decided to tear it down to have a look into why the kick starter wasn't working. It turned out that it was installed wrong.
That makes me wonder who's been into this thing!! ??? That's not a mistake FBG would make. :-\As well, when we had it all apart, we decided to make a drawing of the porting. This will be handy for reference as we proceed down this road. With the cylinder on a flat surface, we rolled a sheet of paper up to open up, pressing on to the cylinder walls. Then we reached into the cylinder with a pencil and shaded the port openings. The pencil does a good job of locating the edges of the ports. Pull the paper out and unroll it and you have a 'map' of your ports for that cylinder. Measurements can now be taken off the paper and compared. It's hard to describe, but easy to do. I'll post a pic of the results.
It's a poor pic, but I hope you get the idea.
As well, the intake side of the cylinders have been milled by FBG so that the Lectron carbs would flow in a short direct line into the cylinders. We were a little concerned that our Mukuni TMX flat-slides might contact the heads, which were not milled. We don't have the new carb boots to mount them yet, so we can't be sure it will be a problem. However, I had a chance to get some time on a milling machine yesterday, so I took it!!
Here are some pics that might shed some light on what I'm refering to.
Hopefully you can see how the heads portrude beyond the machined cylinders:
Here, we're starting the cutting. You can see that the centre cylinder head needs more milled off than the outside cylinder heads:
Now, we're pretty much done:
We're leaving the rest to look like a stock h2. From the front, you'll never know!
We removed nearly 3/4" of material. We should be good now.
I need to take some more pics of the finished product. I'll do that today and post them later.
JustinLonghorn
No Purple Hearts, No Blue Ribbons
Rad.
Hey Sherm, thanks! I've loved Tracy bodies since the 70's when they were made! Yup, I'm that old! ;D
The bike we're building has had the frame altered a little, so the Tracy needs to be trimmed to fit as well. It's not sitting exactly as it should when done, but pretty close.
One of the biggest issues with them is their small fuel capacity. With this thirsty beast, that might be a negative.
The bike we're building has had the frame altered a little, so the Tracy needs to be trimmed to fit as well. It's not sitting exactly as it should when done, but pretty close.
One of the biggest issues with them is their small fuel capacity. With this thirsty beast, that might be a negative.
Here are a couple more pics of the engine.
Here's a view from the top. The trimmed edge is the bottom one. You can also make out the webbing between the fins. We didn't want to remove the webbing, so that's where we stopped:
Here you see what we have left to work with:
In the grand scheme, this is only a small detail, but it was the right time to do it, so...
Here's a view from the top. The trimmed edge is the bottom one. You can also make out the webbing between the fins. We didn't want to remove the webbing, so that's where we stopped:
Here you see what we have left to work with:
In the grand scheme, this is only a small detail, but it was the right time to do it, so...
Love crazy two strokes.
What did the ports look like after you mapped them - Wild or mild?
Any history on the drag bike? It is heavily modified and looks like a "Drag" rather than "Altered" or "Modified". Do you know Gary Connors or any of the other Kawi triple drag racers?
I'm looking at that chassis and thinking that an H1 in there would make for a sweet little ride in that class and it wouldn't be hard to get into the record books and get your name up in lights.
Or a reed H2 motor should be capable of 145-155 as we saw at Martin MI a couple of weeks ago. And it's not as if drag racing is expensive. Full data logging, mobile workshop like trailer with lift table etc, heavy duty towing rig etc...
Or like us - open trailer behind a 4 cylinder SUV. Tools in a small toolbox and can of fuel. Maybe a Walmart canopy to keep some of the sun/rain etc off the bikes and you are good to go. Season starts at Indy at teh end of May - you still have time to finish that street bike and build something serious.
Or just bring the street bike - that's what I run - high bars, Jemco chambers and almost stock engine.
The biggest problem with drag racing is that I still try to outbreak them for turn 1. There is no turn 1
What did the ports look like after you mapped them - Wild or mild?
Any history on the drag bike? It is heavily modified and looks like a "Drag" rather than "Altered" or "Modified". Do you know Gary Connors or any of the other Kawi triple drag racers?
I'm looking at that chassis and thinking that an H1 in there would make for a sweet little ride in that class and it wouldn't be hard to get into the record books and get your name up in lights.
Or a reed H2 motor should be capable of 145-155 as we saw at Martin MI a couple of weeks ago. And it's not as if drag racing is expensive. Full data logging, mobile workshop like trailer with lift table etc, heavy duty towing rig etc...
Or like us - open trailer behind a 4 cylinder SUV. Tools in a small toolbox and can of fuel. Maybe a Walmart canopy to keep some of the sun/rain etc off the bikes and you are good to go. Season starts at Indy at teh end of May - you still have time to finish that street bike and build something serious.
Or just bring the street bike - that's what I run - high bars, Jemco chambers and almost stock engine.
The biggest problem with drag racing is that I still try to outbreak them for turn 1. There is no turn 1
Hey Teazer!
Truth is, this project is going to take some time to finish. We might be able to get it on the road by next year, but that's not a certainty at this point. :-\
teazer said:Love crazy two strokes.
What did the ports look like after you mapped them - Wild or mild?
The porting appears to be wild.
Any history on the drag bike? It is heavily modified and looks like a "Drag" rather than "Altered" or "Modified". Do you know Gary Connors or any of the other Kawi triple drag racers?
First off, the dragbike chassis has been sold, so that's out.
Yup, I know Gary a little but we have no history on the engine other than it's supposed to be a Fast-by-Gast Stage III.
I'm looking at that chassis and thinking that an H1 in there would make for a sweet little ride in that class and it wouldn't be hard to get into the record books and get your name up in lights.
Or a reed H2 motor should be capable of 145-155 as we saw at Martin MI a couple of weeks ago. And it's not as if drag racing is expensive. Full data logging, mobile workshop like trailer with lift table etc, heavy duty towing rig etc...
Or like us - open trailer behind a 4 cylinder SUV. Tools in a small toolbox and can of fuel. Maybe a Walmart canopy to keep some of the sun/rain etc off the bikes and you are good to go. Season starts at Indy at teh end of May - you still have time to finish that street bike and build something serious.
Or just bring the street bike - that's what I run - high bars, Jemco chambers and almost stock engine.
The biggest problem with drag racing is that I still try to outbreak them for turn 1. There is no turn 1
I don't think we're going to go drag racing anytime soon. We do like to do track days on the road course though!
Truth is, this project is going to take some time to finish.
We might be able to get it on the road by next year, but that's not a certainty at this point. :-\
Do you have the old DENCO port specs that used to be on the old MrAxel site - and maybe still are.
I got some Factcat loftus measurements the other day but not a lot of other H2 specs. Did you hear that Paul Gast is a sponsor for the ManCup in Georgia in November and if tehy get a decent turnout there may be extra races next year in Ohio and maybe NJ.
Do you have pipes lined up for that motor yet? Walms WTF would look nice and radical. If you need the data run through MOTA, send me the specs via PM or email and I'll see what it predicts. My guess is something heart stopping.
I got some Factcat loftus measurements the other day but not a lot of other H2 specs. Did you hear that Paul Gast is a sponsor for the ManCup in Georgia in November and if tehy get a decent turnout there may be extra races next year in Ohio and maybe NJ.
Do you have pipes lined up for that motor yet? Walms WTF would look nice and radical. If you need the data run through MOTA, send me the specs via PM or email and I'll see what it predicts. My guess is something heart stopping.
I don't have the Denco specs just a link to the Denco Catalogue. http://kawtriple.com/mraxl/denco.htm
We have a set of WTF's from Walms ready to be welded up.
Here's another cool link to Triples parts:
http://triplesdatabase.no-ip.com/
We have a set of WTF's from Walms ready to be welded up.
Here's another cool link to Triples parts:
http://triplesdatabase.no-ip.com/
