'73 Wes Cooley GT750
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- Blokhead
- On the main road
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- Joined: Sat Jul 31, 2010 5:53 am
- Country: USA
- Suzuki 2-Strokes: GT750
- Location: Cleveland
'73 Wes Cooley GT750
Still a work in progress, but its getting close. Fluke meter is my exhaust gas temp gauge for right now.
It looks a lot better with the rack off, but its a waste not to have some place to put stuff.
Front fender is off a Kaw S3 triple, bracket was made by me, and chromed.
Headlight bucket was extended 2", and a piece of crap Airtech fairing installed. Should a put my old Emgo Viper on, especially for what I paid for it.
Tank sides were filled in.
Seat was done by me. Kinda plain, but I like it.
Swingarm was braced, with properly reamed (sized) bronze bushings. Made a noticeable improvement in handling, which surprised me. I just wanted the look, but I'll take the handling upgrade.
Rear fender was chopped about 2.5 ". Lamp bracket was cut done considerably, and rechromed.
Pipes are NOS FPP's that are for late model GT's, hence the adapters. Actually the center Fpp wouldn't fit because of my brace, so I hacked up a Kaw one, and made it fit. Didn't really care about drilling a hole in this one for my EGT probe.
Pipes will be sold when I get done making my 3 inot 1 pipe.
Enjoy;
It looks a lot better with the rack off, but its a waste not to have some place to put stuff.
Front fender is off a Kaw S3 triple, bracket was made by me, and chromed.
Headlight bucket was extended 2", and a piece of crap Airtech fairing installed. Should a put my old Emgo Viper on, especially for what I paid for it.
Tank sides were filled in.
Seat was done by me. Kinda plain, but I like it.
Swingarm was braced, with properly reamed (sized) bronze bushings. Made a noticeable improvement in handling, which surprised me. I just wanted the look, but I'll take the handling upgrade.
Rear fender was chopped about 2.5 ". Lamp bracket was cut done considerably, and rechromed.
Pipes are NOS FPP's that are for late model GT's, hence the adapters. Actually the center Fpp wouldn't fit because of my brace, so I hacked up a Kaw one, and made it fit. Didn't really care about drilling a hole in this one for my EGT probe.
Pipes will be sold when I get done making my 3 inot 1 pipe.
Enjoy;
'79 KZ650SR w/162hp Polaris XC700 Snowmobile Engine Dragbike
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
- water cooled
- Yeah Man, the Interstate
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- Location: Medina OH
Re: '73 Wes Cooley GT750
STUNNING!
- Suzukidave
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Re: '73 Wes Cooley GT750
Everything you have done works well together to make your GT a sporty but still classic look
the older i get the faster i was
- Blokhead
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Re: '73 Wes Cooley GT750
Thanks.
Frame still needs to be painted, my RE5 wheels need to be polished, and relaced with stainless spokes, plus not all of the engine covers have been polished yet........I still have a long list to do.
Frame still needs to be painted, my RE5 wheels need to be polished, and relaced with stainless spokes, plus not all of the engine covers have been polished yet........I still have a long list to do.
'79 KZ650SR w/162hp Polaris XC700 Snowmobile Engine Dragbike
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
- tz375
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Re: '73 Wes Cooley GT750
That is really nice. Congrats. I was never a big fan of the look of FPP clamp on mufflers, but the fact that they are large diameter aluminum should be a big plus in terms of noise. I just bought a couple of lengths of Aluminum tube to replace the muffler on my Strader 3 into 1 to try to take some of the sting out of the exhaust note.
I may have been smarter to just but a clamp-on from Aaen in Racine WI.
I'll be very interested to see your 3 into 1 when it's done.
I may have been smarter to just but a clamp-on from Aaen in Racine WI.
I'll be very interested to see your 3 into 1 when it's done.
- Blokhead
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- Country: USA
- Suzuki 2-Strokes: GT750
- Location: Cleveland
Re: '73 Wes Cooley GT750
Richard,
These FPP's are louder than the Denco's on my H1, by a decent amount. If I was going to keep them I would modify them with internal stingers. Right now it sounds like a pop corn maker on roids.
I don't have the main jets right (too rich), but it doesn't have the top end I thought it would. FPP's for the Kaw triples rev to the moon.
So, its either too rich or the air box is to restrictive, even though I opened up the sides, and the back snorkle.
I'll play with the jets, and maybe run it with out the box, and see how it is.
My 3 ino 1 is going to be kinda crazy, hopefully it works.
These FPP's are louder than the Denco's on my H1, by a decent amount. If I was going to keep them I would modify them with internal stingers. Right now it sounds like a pop corn maker on roids.
I don't have the main jets right (too rich), but it doesn't have the top end I thought it would. FPP's for the Kaw triples rev to the moon.
So, its either too rich or the air box is to restrictive, even though I opened up the sides, and the back snorkle.
I'll play with the jets, and maybe run it with out the box, and see how it is.
My 3 ino 1 is going to be kinda crazy, hopefully it works.
'79 KZ650SR w/162hp Polaris XC700 Snowmobile Engine Dragbike
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
- tz375
- Moto GP
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- Joined: Mon Nov 03, 2008 10:47 am
- Location: Illinois
Re: '73 Wes Cooley GT750
On an RD or RZ, those FPP pipes are all top end and they rev really high. One problem with a GT is the extremely low exhaust port roof which restricts power and revs significantly. If you port it to work with those pipes it may not work so well with a 3 into 1, so don't go stark raving mad on the ports.
On a J/K/L block 6mm is enough.
On a J/K/L block 6mm is enough.
- desmocat
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Re: '73 Wes Cooley GT750
I know what you mean, seems like there is always something to do to get finished. Very nicely done!Blokhead wrote:I still have a long list to do.
Ralph Spencer
Spencer Motoworks LLC
Southfield, MI USA
www.spencermotoworks.com
AHRMA #798
Spencer Motoworks LLC
Southfield, MI USA
www.spencermotoworks.com
AHRMA #798
- Blokhead
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- Suzuki 2-Strokes: GT750
- Location: Cleveland
Re: '73 Wes Cooley GT750
tz375 wrote:On an RD or RZ, those FPP pipes are all top end and they rev really high. One problem with a GT is the extremely low exhaust port roof which restricts power and revs significantly. If you port it to work with those pipes it may not work so well with a 3 into 1, so don't go stark raving mad on the ports.
On a J/K/L block 6mm is enough.
I raised them to just slightly higher than MAB specs, which isn't that high, but I squared them off as much as I thought I could get away with, more like a modern snowmobile port. I think this tends to give the exhaust note more of a sharp "crack" to it, rather than a softer "pop". Makes the pipes ring too.
'79 KZ650SR w/162hp Polaris XC700 Snowmobile Engine Dragbike
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
- Blokhead
- On the main road
- Posts: 119
- Joined: Sat Jul 31, 2010 5:53 am
- Country: USA
- Suzuki 2-Strokes: GT750
- Location: Cleveland
Re: '73 Wes Cooley GT750
desmocat wrote:I know what you mean, seems like there is always something to do to get finished. Very nicely done!Blokhead wrote:I still have a long list to do.
Thanks,
I'm just glad I got it to the point were its ride-able. Top end is new, but the bottom end has 25,000 on it, and I don't think its ever been opened up. I'd like to rebuild my spare motor for next year if I have time.
'79 KZ650SR w/162hp Polaris XC700 Snowmobile Engine Dragbike
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
'73 GT750
'74 H2 750
'90 GSXR 1100
'75 H1 500
'76 KH400
'76 RD400
Minitrail 50
2 Trizingers
- tz375
- Moto GP
- Posts: 6204
- Joined: Mon Nov 03, 2008 10:47 am
- Location: Illinois
Re: '73 Wes Cooley GT750
Correct that a squarer top gives a stronger power pulse and more/sharper noise.