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96 bandit 600 fuel pipe and carbs question

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Baffler186
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Joined: 31 May 2013
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PostPosted: 17:36 - 08 Feb 2014    Post subject: 96 bandit 600 fuel pipe and carbs question Reply with quote
Sorry guys, another thread but still having problems. Had carb ultrasonically cleaned and serviced, there were various screws, spacers, jets missing or damaged so had it all put right. Now when I put the carbs back it's pissing fuel out from under the idle screw. Also won't fire at all. Plugs are soaked with fuel. Previous to the carb cleaning it didn't leak at all, ran ok but was being starved somewhere hence the carb service/repair.

Secondly after consulting the Haynes manual it looks like I'm missing a fuel hose Rolling Eyes can someone confirm if my set up is wrong? I have one breather hose going from fuel tap to carb, and a single fuel line going from fuel tap to one of the plastic inlets on the carb. The other identical plastic inlet has never had a pipe going to it as long as I've had it. Hard to pin down the problem when I may have many variables at work. Not sure if there should be a splitter ( so one fuel pipe serves two inlets) or whether one of the inlets has another function and is supposed to be unconnected to a hose?

Thanks for the third time.......
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temeluchus
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PostPosted: 17:59 - 08 Feb 2014    Post subject: Reply with quote
Something is incorrectly assembled and/or missing.

Remove carbs and take many pictures.
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Baffler186
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PostPosted: 18:12 - 08 Feb 2014    Post subject: Reply with quote
temeluchus wrote:
Something is incorrectly assembled and/or missing.

Remove carbs and take many pictures.


Do you mean take carbs apart? I have already taken pics with the tank off, will try to upload. Cant fiddle with carbs yet as i had a carb specialist do them and will get him to fix it if there's a problem. Is it right that there's only one fuel pipe going to one fuel inlet? Haynes suggests two. Though pics aren't clear
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temeluchus
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PostPosted: 00:22 - 09 Feb 2014    Post subject: Reply with quote
Baffler186 wrote:

Do you mean take carbs apart? I have already taken pics with the tank off, will try to upload. Cant fiddle with carbs yet as i had a carb specialist do them and will get him to fix it if there's a problem. Is it right that there's only one fuel pipe going to one fuel inlet? Haynes suggests two. Though pics aren't clear


Yes, one line. Thould go to the spigot that is between the two middle carbs, the lowest.

If you have plugged the fuel line to one of the overflows, fuel will piss everwhere.
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exuptoy
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Joined: 05 Aug 2007
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PostPosted: 01:15 - 09 Feb 2014    Post subject: Reply with quote
In the pic below, you can see the black t-piece at the front, low down between carbs 2&3, this is the fuel feed and at the rear you can just make out the 2 x black t-pieces between carbs 1-2 and 3-4, these are overflows which are piped over the air box and down to the ground.

https://i4.photobucket.com/albums/y148/exuptoy/Bandit/44059399-2C66-48DC-BA84-0DC8839B3707_zpslwkiakpo.jpg
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exuptoy
Borekit Bruiser



Joined: 05 Aug 2007
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PostPosted: 01:20 - 09 Feb 2014    Post subject: Reply with quote
When I rebuilt mine, I found the bike wouldn't start so when I sprayed brake cleaner down the belmouths and it started, it was running at around 7k revs. I had put the push/pull throttle cables back as I had found them. Looks like maybe the PO had adjusted them when they had tried to get it running. So effectively the bike was trying to get more fuel in when starting and flooding the carbs and plugs.

I backed them right off and it started fine, then I set up the cables after.
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Baffler186
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PostPosted: 06:07 - 09 Feb 2014    Post subject: Reply with quote
Thanks all, think I must have got the plumbing all wrong! Will have another go today
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Baffler186
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PostPosted: 20:11 - 12 Feb 2014    Post subject: Reply with quote
Well that all went fine, it fired up straight away but now i have a new problem. It idles at 3500 rpm, the throttle cables are as loose as they will go, the choke is fully off. Any ideas why this is? Also the idle screw is as low as it will go.

Just to remind you i had the carbs cleaned, serviced and set up properly from a trusted carb specialist. Can i easily adjust something myself or is it a garage job?
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temeluchus
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PostPosted: 04:04 - 13 Feb 2014    Post subject: Reply with quote
Baffler186 wrote:
Well that all went fine, it fired up straight away but now i have a new problem. It idles at 3500 rpm, the throttle cables are as loose as they will go, the choke is fully off. Any ideas why this is? Also the idle screw is as low as it will go.

Just to remind you i had the carbs cleaned, serviced and set up properly from a trusted carb specialist. Can i easily adjust something myself or is it a garage job?


turn out the idle screw (black knob that sticks out the bottom between the middle two carbs) and see if the idle drops. if the idle does not change at all, then something is not fitted correctly.

Try removing the throttle cable and see if it then idles properly. if it then idles OK you need to fit it again carefully avoiding bending or pinching.

Also make sure all the clamps holding the carbs to the engine are done up and all the vacuum take off points are blanked off. Air leaks can make the thing idle far too high.
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Baffler186
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PostPosted: 08:47 - 13 Feb 2014    Post subject: Reply with quote
temeluchus wrote:
Baffler186 wrote:
Well that all went fine, it fired up straight away but now i have a new problem. It idles at 3500 rpm, the throttle cables are as loose as they will go, the choke is fully off. Any ideas why this is? Also the idle screw is as low as it will go.

Just to remind you i had the carbs cleaned, serviced and set up properly from a trusted carb specialist. Can i easily adjust something myself or is it a garage job?


turn out the idle screw (black knob that sticks out the bottom between the middle two carbs) and see if the idle drops. if the idle does not change at all, then something is not fitted correctly.

Try removing the throttle cable and see if it then idles properly. if it then idles OK you need to fit it again carefully avoiding bending or pinching.

Also make sure all the clamps holding the carbs to the engine are done up and all the vacuum take off points are blanked off. Air leaks can make the thing idle far too high.


thanks, idle screw was out as far as it would go, same goes for cables (took them off at carb end), so I think your air seepage theory could be the problem. I'll double check that the inlet rubbers are fully airtight with the air box rubbers as well.

cheers
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P.
Red Rocket



Joined: 14 Feb 2008
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PostPosted: 09:03 - 13 Feb 2014    Post subject: Reply with quote
Spray some WD40 or similar around the carb rubbers and see if the idle does crazy stuff.
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Old Thread Alert!

The last post was made 11 years, 282 days ago. Instead of replying here, would creating a new thread be more useful?
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