General discussion about Street two-stroke Suzuki motorcycles.
Moderators: oldjapanesebikes , H2RICK , diamondj , Suzsmokeyallan
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
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by jabcb Fri Jul 31, 2020 3:40 pm
Looks like Jemco is no longer making pipes. Making a list because I need something for my GT550 cafe build.
OldJapaneseBikes.com has a list of GT750 exhaust systems:
https://www.oldjapanesebikes.com/GT750_ ... -A55#pipes
Some additional info is here:
viewtopic.php?t=9552&hilit=gt+750+chambers&start=15
Delkevic: GT750 replica & 3-into-3
https://delkevic.com/motorcycles/suzuki ... els/gt750/
Jollymoto: GT380 3-into-3, GT750 3-into-1
https://www.jl-exhausts.com/jollymoto-s ... -915-c.asp
JL Exhausts: T500 2-into-2, GT550 3-into-3, GT750 3-into-3
https://www.jl-exhausts.com/jl-suzuki-e ... -405-c.asp
Gibson: GT550 3-into-4, GT750 3-into-3
http://www.stinkwheels.co.uk/index.php/ ... ed-pricing
Higgspeed: 3-into-3 & 2-into-2
https://higgspeed.com
Zenshin in Japan: 3-into-3 & 3-into1
All the info I found was in Japanese.
Zenshin about page:
http://zenshinpipe.air-nifty.com/about.html
http://www.translatetheweb.com/?ref=SER ... -nifty.com
contact info:
311-4163
747-4 Kakurai, Mito City, Ibaraki Prefecture
Zenshin Engineering
tel 029-309-6224
fax 029-309-6225
Mail
uhk56439@nifty.ne.jp
The specifications can be changed according to the budget, so please contact us directly for details. Zenshin, in charge, Toshima, 029-295-3121, fax, 029-295-7192, email
uhk56439@nifty.ne.jp
I think you can get their pipes here:
https://www.motoparts-online.com/apps/w ... ow/2951142
Product list???:
https://www.translatetheweb.com/?from=j ... nshinpipe#
Some of their pipes:
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Fri Jul 31, 2020 7:03 pm
Zenshin also has cross-pipe 3-into-3 that gets rid of side stand issues. Video of Kawasaki with the cross pipe:
https://youtu.be/HuzqGpGdtRQ BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Sat Aug 01, 2020 4:53 am
GT750 with Zenshin cross-pipe 3-into-3
https://youtu.be/nh7mxy6Mwww
GT550 with Zenshin 3-into-1 “Imo Long”
https://youtu.be/p2LWQ3AIOH0
GT550 with Gibson 3-into-4
https://youtu.be/ftT1YvZynkM BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Sat Aug 01, 2020 9:32 am
Anyone have insight in the cornering clearance for the available 3-into-3 & 3-into-1 chambers for a GT550?
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Sat Aug 01, 2020 3:07 pm
Zehshin Facebook page (in Japanese):
https://www.facebook.com/pg/207005156440324/posts/
GT550 3-into-1 video on Facebook:
https://www.facebook.com/20700515644032 ... 40953/?t=0
Based on some of the pics, I’m wondering about the ground clearance from some of the Zenshin pipes.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Mon Aug 03, 2020 6:09 pm
video of GT550 with Higgspeed / GT750s with Gibson & JL — the bikes have center stands
https://youtu.be/GFcv_8qQFUE
I found this topic by forum member 2strokelove, where he had side stand clearance issues with Higgspeed on a 1972 GT550.
He last visited the forum in 2016. Didn’t find any indication about his resolution to the cornering clearance issue.
viewtopic.php?f=2&t=11017&p=149583&hili ... ed#p149583 BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Wed Aug 05, 2020 4:15 pm
Looks like someone else has a GT550 side stand solution similar to my GT380 solution.
Pic of the stock GT550 side stand:
cafe-GT550-1208 by
jabcb , on Flickr
Pic of my GT380 stand prior to welding on the tab: 1/2” thick spacer + T500 stand bracket + TS250 stand:
GT380_0541 by
jabcb , on Flickr
Pic of completed GT380 stand:
GT380_0611 by
jabcb , on Flickr
Pic of Taimoshan Cycle Works GT550 Brat Racer with Jemco 3-into-3 + a TBD stand:
More info:
https://www.taimoshancycleworks.com/bui ... ld-photos/
https://www.taimoshancycleworks.com/cur ... rat-racer/ BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
daxman
To the on ramp
Posts: 348Joined: Thu Nov 07, 2013 1:59 pmCountry: United KingdomSuzuki 2-Strokes: A100 GT250 & 4t Yams!Location: Brussel County, England
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by daxman Thu Aug 06, 2020 5:26 pm
NIce pipes - all of them!
grumpy56
To the on ramp
Posts: 218Joined: Thu Nov 20, 2014 11:08 pmCountry: USASuzuki 2-Strokes: 1970 T350 Restored; 1972 GT380 BuildLocation: Yorba Linda, CA
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by grumpy56 Fri Aug 07, 2020 8:49 am
Good info. Thanks much!
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Fri Aug 07, 2020 7:50 pm
I contacted Motoparts Online about Zehsin.
They can sell any of the Zenshin pipes. For a list of pipes, they provided the Yahoo link:
https://auctions.yahoo.co.jp/seller/zenshinpipe BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Fri Aug 07, 2020 8:02 pm
Webike in Japan also sells Japanese expansion chambers for Suzuki bikes. Bands & products varies from time to time.
Currently they list MAD★STAR GT380 3-into-1:
https://japan.webike.net/ps/#!p.m=607&p.c=1002&p.sk=1 BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Jakefromstatefarm
Still in the Driveway
Posts: 2Joined: Fri Jul 24, 2020 10:02 pmCountry: United StatesSuzuki 2-Strokes: 1975 Suzuki GT550
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by Jakefromstatefarm Sun Aug 23, 2020 7:58 am
Dude you are seriously doing Gods work right now. I’m in the process of tearing down my 75 GT550 that’s been sitting for years. Rebuilding the entire motor and the stock exhaust is completely rotted out. It ran before but it stopped running on the left cylinder after I believe to be a crank seal failed. Figured I might as well throw some expansion chambers on.
jabcb
Moto GP
Posts: 4241Joined: Mon Dec 13, 2010 4:32 pmCountry: USASuzuki 2-Strokes: 69 T350 thru 75 GT750Location: southwestern Pennsylvania
Post
by jabcb Sun Aug 23, 2020 9:33 am
Jakefromstatefarm wrote: Also found these systems for the 550s from Italy while looking around on eBay
https://www.ebay.com/itm/293690729045 " onclick="window.open(this.href);return false;" onclick="window.open(this.href);return false;
Those are Jim Lomas expansion chambers that I listed in the first post as JL Exhausts.
BAS (Bike Acquisition Syndrome) - too many bikes but have room for more
Alan H
Moto GP
Posts: 3172Joined: Thu Feb 16, 2012 11:50 amCountry: EnglandSuzuki 2-Strokes: 4 x GT550s - J, M, A, B.Location: The Republic of South Yorkshire
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by Alan H Sun Aug 23, 2020 1:48 pm
Or Abbey spannies like these on my A model in the Isle of Man a couple of years ago.
Isle of Man.jpg
Just fitted 13" Hagon shocks for better ground clearance - now I have to extend the sidestand!!
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Think of how stupid the average person is, then realise that half of them are more stupid than that.
