Ride In Peace Marc

Welcome to the KatRiders.com forums.

You are currently viewing our boards as a guest which gives you limited access to view most discussions and access our other features. By joining our free community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Go Back   KatRiders.com > Service Department > Mechanics 101

Mechanics 101 Can't get it to run right? Find a trick to add HP?
From the first oil change to completely rebuilding the engine,
this is the place to talk about the heart of the beast!

Thread Tools Display Modes
Old 11-15-2017, 02:49 AM   #1
Chicken Strip
Join Date: Aug 2017
Location: sicily
Posts: 13

Default infamous diaphram

i'm rebuilding the carburetors of my 1988 katana 600 (gn72a) and i cannot find just the diapghram, can anyone knows where i can ?thanks
doppiaeffe is offline   Reply With Quote
Old 11-15-2017, 08:56 AM   #2
Track Rider

ygolohcysp's Avatar
Join Date: Sep 2008
Location: Whitehall, PA
Posts: 955
eBay ID: theovergrowngnome



I see your location is Sicily, so I would guess that your English is much better than my Italian. The word you're looking for is diaphragm.

I tried looking at bikebandit.com, and only found the assembly for a lot of money.

I did find just the diaphragms by searching ebay for "1988 katana carb diaphragm".

Just one result:
ygolohcysp is offline   Reply With Quote
Old 11-20-2017, 04:12 AM   #3
Chicken Strip
Join Date: Aug 2017
Location: sicily
Posts: 13


they looks similar but not the same, the first katana 600 (gn72a) have a different carb from the followings series.

maybe i've found somethingh similar and i will make some reserch about
doppiaeffe is offline   Reply With Quote
Old 11-25-2017, 12:26 PM   #4
Chicken Strip
Join Date: Aug 2017
Location: sicily
Posts: 13


for future notice:

gn72a katana 600 use the mikuni bst31ss, the worst carb ever used. you cannot change just the rubber but you need to change even the metal slider. it cost a lot of money (average price 200$ each) but i find in germany a kit for 80$ each.

i think i may swap this carb to the gn72b ones, any ideas about?

still sorry for my english
doppiaeffe is offline   Reply With Quote
Sponsored Links

  KatRiders.com > Service Department > Mechanics 101


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
Diaphram at top of carb is a bit out of round chadwc Mechanics 101 8 01-21-2009 07:13 AM
Another infamous question Beachcruiser Exhaust & Mod Shop 17 06-20-2008 07:13 PM
Infamous 2nd gear ! Prozak Mechanics 101 22 03-26-2006 10:49 AM
fuel petcock diaphram blackthunder Mechanics 101 4 03-15-2006 10:47 PM
infamous undertail with leds backdraft51185 Suzuki Katana Talk 3 08-12-2005 07:56 PM

All times are GMT -5. The time now is 06:02 PM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Katriders.com, Copyright ©2004 - 2018

Like Cigars? Check out Vitola.org