This is one reason I haven't actually bitten the bullet and drilled mine yet...
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Yeah that's what I would've thought too... although interestingly enough there was some debate I found via Google search that indicated the larger hole was to increase the lift hence why people drilled them out...
This is one reason I haven't actually bitten the bullet and drilled mine yet...1982 GS450E - The Wee Beastie
1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
sigpic
450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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I'm going to be looking into that soon Pete. Definitely going to try the shortened springs.
Good news
I have some parts heading this way from Adidasguy
Rotor
Coils, plugs
speedo
tach
chain guard (custom made by him)
rear plastic covers
Foot pegs
rear reflectors
shims
grommets.Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wiki
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Big Rich
Good old Adidas...... I've gotten my share of parts from him as well.
Sorry for the mini jack Stephen. But Pete - I have some GS450 carbs laying around if you want them. Or even just the slides if you want to experiment with them. Just cover shipping.
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Stephen... I'm now running 150 mains and so far so good, should be getting a nice ride in tomorrow to confirm though.
Rich, that may come in handy actually, although I have an offer here of some slides pending determining if they're the same as mine though.
I've still yet to pull the slides again and measure the vacuum hole...1982 GS450E - The Wee Beastie
1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
sigpic
450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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Originally posted by pete View PostStephen... I'm now running 150 mains and so far so good, should be getting a nice ride in tomorrow to confirm though.
Rich, that may come in handy actually, although I have an offer here of some slides pending determining if they're the same as mine though.
I've still yet to pull the slides again and measure the vacuum hole...
2.90mm or 0.115"Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wiki
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Hahaha... I will have to go measure mine this week... and after today's awesome riding with the 150 mains I reckon I should do the drilling too...1982 GS450E - The Wee Beastie
1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
sigpic
450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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Originally posted by pete View PostHahaha... I will have to go measure mine this week... and after today's awesome riding with the 150 mains I reckon I should do the drilling too...
Any difference with top end pull with the 150's?Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wiki
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Mate it's awesome... last time I was out on some good roads, I hit a certain speed and that was that... no amount of crouching behind the fly screen would improve it.
On Saturday, no crouching and accelerating in 5th gear, I easily passed that speed and felt she had a reasonable amount more to go.
I'm confident I can hit the ton if I so desire now
Of course I would only do that on a private road in controlled circumstances right?1982 GS450E - The Wee Beastie
1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
sigpic
450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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Maybe step it up another notch to see if there is any more. How do the plugs look on a wot plug chop ?Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wiki
Comment
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I haven't done plug chops yet as the situation wasn't suitable on Saturday, but I did some tests by holding it at WOT and then letting the throttle close a little to see if she would pick up a little or not, and while it didn't seem to do so, it felt like it wanted to, so given that I don't want to get any bigger on the mains.
It's still doing some popping on decel as well so I think I need to richen the mixture screws another quarter turn.
I should be doing a dyno run with the Kat guys on May 18 which will show me how good/bad it really is...1982 GS450E - The Wee Beastie
1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
sigpic
450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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Yeah do it. Best way to find out.
Today I got a bit done and had a little bit of fun with the ignition.
Installed a dyna 200 rev limiter, put the rotor in a drill and spun it up. The rev limiter worked :-p. It would only spark so fast once it maxed out.
Also pulled the flywheel off to replace it with the new one comes. 14mm x 1.5 bolt works well.
Last edited by Mekanix; 04-24-2013, 11:38 AM.Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wiki
Comment
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Cool, good to see some electrickery going in there1982 GS450E - The Wee Beastie
1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
sigpic
450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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I've added a few things. 4 way flashers, gear position, volt meter, led everything, usb outlet, 12v outlet, heated grips and seat soon.Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wiki
Comment
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That's right, forgotten you had already done some of that stuff... I'm losing track of all the threads I'm following...
How long 'til the first test ride? Gotta be getting close surely...1982 GS450E - The Wee Beastie
1984 GSX750S Katana 7/11 - Kit Kat - BOTM May 2020
sigpic
450 Refresh thread: https://www.thegsresources.com/_foru...-GS450-Refresh
Katana 7/11 thread: http://www.thegsresources.com/_forum...84-Katana-7-11
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All the parts from adidasguy arrive tomorrow. Still have to prep and seal the tank. So 2 weeks maybe.Stephen.
1981 GSX540L "Frankintwin"
1989 GS500E Resto-mod .
400 mod thread
Photo's 1
Photos 2
Gs500 build thread
GS twin wiki
Comment
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