collapse

www.dimecitycycles.com

https://www.townmoto.com/collections/vanson-leathers


www.restocycle.com

www.CITYLIMITMOTO.com

www.jadusmotorcycleparts.com

www.bisonmotorsports.com

www.speedmotoco.com

www.lostapostlejewelry.com

www.cognitomoto.com

www.sparckmoto.com

www.Moto-Madness.com

www.pistonsociety.com

www.steeltowngarage.com


Author Topic: 1998 Gsxr 750 build  (Read 8166 times)

Offline datadavid

  • Posts: 1363
Re: 1998 Gsxr 750 build
« Reply #40 on: Jan 31, 2018, 00:23:35 »
Interesting, never even heard of it previously even with guy's I knew 'back in the day' who raced Triumph twins with just about any mods you could think of (trying to stay 'competitive' with Suzuki/Kawasaki engined Rickman, et al framed bikes) I would think 'Y' oil-ways would be more for cylinder lube though as even a very shallow angle will not direct much to the underside of piston crown? (small end will be better lubricated from piston skirt scraping oil off cylinder walls and some will hit underneath piston.. Piston acceleration with te relatively long stroke motors would probably negate much cooling effect but I have seen many 'pretzeled' BSA/Triumph rods due to small end seizing (sen it on XS650's also)
The oil jet pointing at piston crown was actually copied from late 1920's ~ 1930's aircraft system. I'm not sure who used it first but was 'kinda' well known by time Rolls Royce designed the Kestrel . There is a lot of 'declassified' research available from NACCA, NASA , various defence ministries, etc, the 'trick' is to find whats useful and apply it to a different form of engineering (I think I may have 'invented' a new form of wind powered generator - unless Tesla did it first 100 yrs ago  ;D )
Thats what the idea was anyway

Offline crazypj

  • Posts: 13155
  • Split personality, I fake being smart
Re: 1998 Gsxr 750 build
« Reply #41 on: Jan 31, 2018, 10:28:44 »
Thats what the idea was anyway

I was thinking (I know, always a bad move on my part) A 'Y' hole will 'sweep' as con rod angle changes.  I have seen motorcycle con-rods with a boss cast in and drilled for oil squirting upwards (I think maybe 80's Yamaha FZR600?) The shell bearing kinda 'blocked' crank-pin oil feed hole at TDC but lined up about 20~30 degrees after TDC so would be pointing almost straight up?
Now I've slept on it, I may strip CB360 crank (already have XS 650 crank in pieces)
May not do any good as they are low pressure motors but centrifugal force may sling extra oil up inside piston?
XS 650 oil feed is is 'wrong' place to fit oil jets - very low aross front of crankcase(Yamaha use oil jets squirting on big ends and 'two-stroke' rods with slots) but CB360 has oil feed across top rear of case so oil jets could possibly be fitted?
There's probably a ton of useful information buried in other people's threads but only a few people will ever see it.  :(
The only reason I know anything about aircraft piston engines is the fact someone asked me about radial and rotary engines almost 40 yrs ago.. Couldn't find much information so bought a couple of books which covered all types of aircraft piston engines. (I had a bit of spare cash for such things before I got married   :) )
 ............and now we return to our regular program  ;D
« Last Edit: Jan 31, 2018, 10:43:53 by crazypj »
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline 1fasgsxr

  • Posts: 1463
Re: 1998 Gsxr 750 build
« Reply #42 on: Feb 10, 2018, 22:25:57 »
Picked up a few pieces...used race tail and new fuel pump for the strainer. ..
http://www.dotheton.com/forum/index.php?topic=41083.0

Life is a journey from the maternity ward to the crematorium....

Offline crazypj

  • Posts: 13155
  • Split personality, I fake being smart
Re: 1998 Gsxr 750 build
« Reply #43 on: Feb 10, 2018, 23:59:14 »
You ain't supposed to but it is possible to strip those fuel pumps. I forget what mods they need but I'm sure it's 'all over the internet'
You do need to fill the anti' lean device with epoxy or silicone, it was set to 'go off' at 45 degrees but can cut motor at less lean angle. (not usually too much of an issue, it's motor cutting back in at full throttle when you get bike back upright that kills people) Cant remember if it's in front or rear of battery box. make a note of orientation. Except for being 'less sexy' steel perimeter frame Katana's are actually a better frame than the alloy GSX-R 'conventional' styling (which is why all the later bikes use perimeter frame) It also makes servicing crazy easy compared to earlier GSX-R
« Last Edit: Feb 11, 2018, 00:11:50 by crazypj »
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline canyoncarver

  • DTT SUPPORTER
  • *
  • Posts: 3561
  • 'hacking is learning'
Re: 1998 Gsxr 750 build
« Reply #44 on: Feb 11, 2018, 15:17:13 »
Neat race tail.  Do you have your own numbers in mind?   I was going through that thought on mine too.
--

YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
65 Norton, My damn Shovelhead chop, and an 86' FXR
more YZF750R's, the KZ's, a Zephyr750...and the unfinished 75' CB550 cafe.
--

Offline 1fasgsxr

  • Posts: 1463
Re: 1998 Gsxr 750 build
« Reply #45 on: Feb 12, 2018, 13:12:52 »
No numbers in mind...if I do any at all.  While a Katana frame may be "better" there is no comparison between the 2 bikes imo.
http://www.dotheton.com/forum/index.php?topic=41083.0

Life is a journey from the maternity ward to the crematorium....

Offline canyoncarver

  • DTT SUPPORTER
  • *
  • Posts: 3561
  • 'hacking is learning'
Re: 1998 Gsxr 750 build
« Reply #46 on: Feb 12, 2018, 13:56:34 »
I've got an 89' and a 90' Katana 600 and I can't seem to give them away.
--

YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
65 Norton, My damn Shovelhead chop, and an 86' FXR
more YZF750R's, the KZ's, a Zephyr750...and the unfinished 75' CB550 cafe.
--

Offline 1fasgsxr

  • Posts: 1463
Re: 1998 Gsxr 750 build
« Reply #47 on: Feb 12, 2018, 16:16:34 »
I will never put anyones ride down again, I have in the past, but simply say its not for me or not my kind of bike.
http://www.dotheton.com/forum/index.php?topic=41083.0

Life is a journey from the maternity ward to the crematorium....

Offline crazypj

  • Posts: 13155
  • Split personality, I fake being smart
Re: 1998 Gsxr 750 build
« Reply #48 on: Feb 12, 2018, 21:34:53 »
I've got an 89' and a 90' Katana 600 and I can't seem to give them away.

 Engines are same as the later 'Bandit'
 Suzuki reverted to 'screw and locknut' valve adjustment
They should be worth at least a grand?
'you can take my word for it or argue until you find out I'm right'
Best thing I ever overheard
"yep, PJ's my boss, he taught me everything I know, just didn't teach me everything he knows"
Brian Morgan, 1982

CB360's,  http://www.dotheton.com/forum/index.php?topic=11736.0
XS650,  http://www.dotheton.com/forum/index.php?topic=11922.0

Offline canyoncarver

  • DTT SUPPORTER
  • *
  • Posts: 3561
  • 'hacking is learning'
Re: 1998 Gsxr 750 build
« Reply #49 on: Feb 13, 2018, 11:59:07 »
Engines are same as the later 'Bandit'
 Suzuki reverted to 'screw and locknut' valve adjustment
They should be worth at least a grand?

Interesting, I didn't know that.  I'll look into it some more.   I got them because they were cheap from two stoners who only wanted a little weed money.  I'd trade them for a gsxr any day though. 
--

YZF750/1000R The Fly
KZ 750 Twin
ZRX 1100
KZ400 The Rabbit
65 Norton, My damn Shovelhead chop, and an 86' FXR
more YZF750R's, the KZ's, a Zephyr750...and the unfinished 75' CB550 cafe.
--