Suzuki Bandit GSF1200S Carby Issues. Thought it was flooding but turned out to be the rubber caps on the balance tubes had perished and was letting too much air in.
Just a tip, pumping the throttle before starting on a CV carb won't do anything. It has no accelerator pump in it. Slightly turn the the throttle to open the butterflies, and hold it open, again I'll stipulate only slightly, which in turn allows the fuel to be drawn into the combustion chamber, as the piston creates low pressure suction from the pistons stroke.
Same problem here too amigo on my 2006 bandit 1200...those caps often get blown off .. not sure why but recently i adjusted the valves for 1st time at about 49000miles and it seems to have mitigated the problem..i think it could be combustion gases pushing through improperly shut intake valves and into the carbs..i was replacing those caps with normal tube and screws instead because it happened often through the years..when i took off the valve covers and checked recently i noticed some of the valves has tightened up slightly.. i eased up the clearances to 0.008in for EX (0.007 to 0.009in range) and 0.006 for IN (0.004 to 0.006in range)
Leka bud Just bought a 06 1200 bandit today... So comfy and still goes like all my uncomfortable superbikes only issues with the bike is when I want to open up and go then like half way throttle she like floods if I would say for like a second then fuxk off like hell, I'm thinking 1 of my carbs flooding or something I don't know, will strip this weekend with a cold beer. Cheers man ride safe brother
Wazzas. Just found your channel. Got 94 GSXR 750. Put 2001 1200 bandit motor it off C/L. Air fule 3 turns idles 1000 like champ stumped mid didn't push top end check plugs insides lean outside rich.
When you say leaking what were the carbs doing as I think I’ve got a similar problem with my carbs I’m getting fuel leak through the main jet and my float heights are set but there seems to be an air leak on the inlet could it possibly be the balance tubes causing the flooding
I had a lot o issues with gas flooding. The mistery was in the needle seat oring, it's a 10mm x 1.3mm oring. I let a advising for all guys: Attention to this oring
i have a 97 bandit 1200,i've had the carbs off it and having a real hard time getting the rubber boots on the back of the carbs back into the airbox,,,how did you do it ,,,thanks in advance
Hi gthoshaker, unfortunately no real easy way as far as my carbs went and also had a hard time but I did have a little success using silicone spray on both air box and boots. I dont know if this is a preferred method or not but it certainly helped. good luck and hope this helps.
With the airfilter out, and hoping the mesh has been removed in the airbox, you can use your fingers from inside the airbox to manipulate the rubbers onto the intakes. If the mesh is still in, and you don't want to remove it, smear a bit of oil on the rubbers to allow easier slip.
2006 bandit and maybe aussie??? lol it's usually the needle and seat that gives you carb drama. the little spring in the needle goes soft over time. replaced mine twice in 100 000kms so not so bad. second time i knew the warning signs. was ridden daily
Hi Psiclone Psikotic, yes definitely Aussie and 2006. My first thought was Idle jet then needle and seat but all was fine. Once the rubber caps were replaced the problem was solved. Have not had another issue since and still ride the old girl regularly. Cheers for the comment.
I have a 2003 bandit 1200s It runs really choppy on start up, choke only engages when it's halfway on and when it does engage the revs jump to 6k rpms... when choke is off it idles around 1500 but dies out... and not just that but the idle is sporadic... what to doooo
Hi SparkySal257, I'm not a mechanic but do like to tinker. For me it was trial and error. I had the carbies off 3 to 4 times, stripping down each time checking jets, seal, gaskets or orings until I found the perished rubbers. This was letting too much air in messing with the mixture. Once the rubber caps were replaced I had no more issues. Sounds like you may have similar issues.
ayup. I have a 1200 bandit. Carbs sonic cleaned and set up. Now i have a bike that starts and revs, but wont go over about 2000 rpm when moving. Splutters like hell and simply wont pull. Any ideas?
Hi Lindon, I'm certainly no mechanic, but trial and error helped me out. Check the rubber caps like I did, you may have the same issue. I could ride it fine with the choke on but nor with it off. One I changed the rubber caps, problem solved. Good luck, hope this helps.
@@wazzasworkshop4852 cheers bud. Ill look at that and someone mentioned a speed sensor. It could rev well but once moving causes a problem. Its nice to have a reply from another enthusiast and I've spent so much time and money tuning it into,a streetfighter, im loathed to take it to a shop and give up
MotoSyndicate they are, I think balance tubes, ( i could be wrong ) and go between 1 & 2 as well as 3 & 4 at the top rear of the carbs just below the diaphragm cap. Thoe houses then rout out along the top frame rails under the seat. P.S. i still haven't chsnged the one I butchered in the video and the bike rins fine. Hope this helps.
WazzaHarves 888 thank you. I'm in the middle of a carb rebuild now. After watching some videos i think I have a pretty good understanding on them. I'm taking my time and being very thorough and meticulous
That's the best approach I think, lay out the parts as you remove them. I take pictures in case I forget where something goes. I'm sure you will do fine.
there is a silver spring that came from somewhere. it's not the bronze spring that goes in the carb. I've looked at the diagram for these carbs and I have everything.
MotoSyndicate hi, I'm not sure about the silver spring either, I will sift through old footage and photos from previous carb strip downs (3 previous) and see what I can find out.
watching this again in 2021 in an attempt and contemplation to remove the carbies and suppress a popping sound revolt from the engine, its popped off one its rubber caps again....
Man pulled mine apart and what a bitch to put back in...Feel like making hot rod with air box chucked out. Taking apart again tomorrow Seem to have throttle cables wrong
If it dies at idle and the choke only works full on its your idle circuit especially if stood for a long time I put new idle jets in mine and new air fuel needles screwed out the correct number of turns If you clean the main jets dont mix them up as on a 600 theyre bigger on the two inner cylinders to keep them cool, Clear the three small holes by the butterflies with fuse wire or guitar string and carb cleaner. Then bench set them Mine now runs like a swiss watch and pulls like a train. Keep the main jets standard and use a standard air filter.
Thanks for the info, me not being a Mechanic I tend to look for the obvious and yes I have been told it should be running a bit leaner. My problem is convincing the Minister of Finance that I need to spend money on the Bandit. The bike is 12 years old and in the next year or so I will be giving it a bit of an overhaul once the new shed is built. (this bike will never be sold)
Mine would idle at high revs too and could only ride it with the choke on. I have standard jets but a yoshimura carbon fiber can. Once I sorted out the rubbers which stopped the air leak, now idle is at 1000rpm. I would recommend looking for air leaks.
@@timmytool1231 thanks champ, nah not a problem. For me my channel has been a bit of fun but life events have slowed things down a tad. I am up for all comments, good or bad or even the keyboard warriors. At least they are watching my videos lol. Cheers for watching and taking the time to comment, much appreciated mate.
@@wazzasworkshop4852 well you have a good attitude, I used to race GS1100's back in the day, here i am 68 and buying a 10,000 miles 2000 Bandit 1200, she's going to need some TLC, lots of sitting, but I know that engine, am so looking forward to fixing her up.
@@bingobandit you can't beat the Suzuki 4's. Me and my brother raced a GS1000 speedway sidecar back in the late 80's and had a blast. I won't be going too much bike stuff short term as I don't have the room at the moment and am unemployed but have some ideas for down the track.
Just a tip, pumping the throttle before starting on a CV carb won't do anything. It has no accelerator pump in it.
Slightly turn the the throttle to open the butterflies, and hold it open, again I'll stipulate only slightly, which in turn allows the fuel to be drawn into the combustion chamber, as the piston creates low pressure suction from the pistons stroke.
Thanks MTBEERWAH
for the feedback and taking the time to watch my video. I think it's a case of "old habits die hard" with the throttle thing.
Same problem here too amigo on my 2006 bandit 1200...those caps often get blown off .. not sure why but recently i adjusted the valves for 1st time at about 49000miles and it seems to have mitigated the problem..i think it could be combustion gases pushing through improperly shut intake valves and into the carbs..i was replacing those caps with normal tube and screws instead because it happened often through the years..when i took off the valve covers and checked recently i noticed some of the valves has tightened up slightly.. i eased up the clearances to 0.008in for EX (0.007 to 0.009in range) and 0.006 for IN (0.004 to 0.006in range)
hay that's a great 👍 idea on the cause. good thinking.
Leka bud
Just bought a 06 1200 bandit today... So comfy and still goes like all my uncomfortable superbikes only issues with the bike is when I want to open up and go then like half way throttle she like floods if I would say for like a second then fuxk off like hell, I'm thinking 1 of my carbs flooding or something I don't know, will strip this weekend with a cold beer. Cheers man ride safe brother
COOL POST..
Wazzas. Just found your channel. Got 94 GSXR 750. Put 2001 1200 bandit motor it off C/L. Air fule 3 turns idles 1000 like champ stumped mid didn't push top end check plugs insides lean outside rich.
Thanks for making the vid. What were the names of the songs on your soundtrack?
Hi where did you get the block offs from,two off mine have split,but I cannot find replacements for them?
When you say leaking what were the carbs doing as I think I’ve got a similar problem with my carbs I’m getting fuel leak through the main jet and my float heights are set but there seems to be an air leak on the inlet could it possibly be the balance tubes causing the flooding
I had a lot o issues with gas flooding. The mistery was in the needle seat oring, it's a 10mm x 1.3mm oring. I let a advising for all guys: Attention to this oring
specific plugs on these can also mess you around, they suggest 9 but 8 is better
i have a 97 bandit 1200,i've had the carbs off it and having a real hard time getting the rubber boots on the back of the carbs back into the airbox,,,how did you do it ,,,thanks in advance
Hi gthoshaker, unfortunately no real easy way as far as my carbs went and also had a hard time but I did have a little success using silicone spray on both air box and boots. I dont know if this is a preferred method or not but it certainly helped.
good luck and hope this helps.
With the airfilter out, and hoping the mesh has been removed in the airbox, you can use your fingers from inside the airbox to manipulate the rubbers onto the intakes.
If the mesh is still in, and you don't want to remove it, smear a bit of oil on the rubbers to allow easier slip.
2006 bandit and maybe aussie??? lol it's usually the needle and seat that gives you carb drama. the little spring in the needle goes soft over time. replaced mine twice in 100 000kms so not so bad. second time i knew the warning signs. was ridden daily
Hi Psiclone Psikotic, yes definitely Aussie and 2006. My first thought was Idle jet then needle and seat but all was fine. Once the rubber caps were replaced the problem was solved.
Have not had another issue since and still ride the old girl regularly.
Cheers for the comment.
I have a 2003 bandit 1200s
It runs really choppy on start up, choke only engages when it's halfway on and when it does engage the revs jump to 6k rpms... when choke is off it idles around 1500 but dies out... and not just that but the idle is sporadic... what to doooo
Hi SparkySal257, I'm not a mechanic but do like to tinker. For me it was trial and error. I had the carbies off 3 to 4 times, stripping down each time checking jets, seal, gaskets or orings until I found the perished rubbers. This was letting too much air in messing with the mixture. Once the rubber caps were replaced I had no more issues. Sounds like you may have similar issues.
ayup. I have a 1200 bandit. Carbs sonic cleaned and set up. Now i have a bike that starts and revs, but wont go over about 2000 rpm when moving. Splutters like hell and simply wont pull. Any ideas?
Hi Lindon, I'm certainly no mechanic, but trial and error helped me out. Check the rubber caps like I did, you may have the same issue. I could ride it fine with the choke on but nor with it off. One I changed the rubber caps, problem solved.
Good luck, hope this helps.
@@wazzasworkshop4852 cheers bud. Ill look at that and someone mentioned a speed sensor. It could rev well but once moving causes a problem. Its nice to have a reply from another enthusiast and I've spent so much time and money tuning it into,a streetfighter, im loathed to take it to a shop and give up
@@wazzasworkshop4852 i got this weekend off and will let you all know how it goes. Ta
that T hose you replaced, its missing on my bike.. where does it go from the carb?
MotoSyndicate they are, I think balance tubes, ( i could be wrong ) and go between 1 & 2 as well as 3 & 4 at the top rear of the carbs just below the diaphragm cap. Thoe houses then rout out along the top frame rails under the seat.
P.S. i still haven't chsnged the one I butchered in the video and the bike rins fine.
Hope this helps.
WazzaHarves 888 thank you. I'm in the middle of a carb rebuild now. After watching some videos i think I have a pretty good understanding on them. I'm taking my time and being very thorough and meticulous
That's the best approach I think, lay out the parts as you remove them. I take pictures in case I forget where something goes. I'm sure you will do fine.
there is a silver spring that came from somewhere. it's not the bronze spring that goes in the carb. I've looked at the diagram for these carbs and I have everything.
MotoSyndicate hi, I'm not sure about the silver spring either, I will sift through old footage and photos from previous carb strip downs (3 previous) and see what I can find out.
watching this again in 2021 in an attempt and contemplation to remove the carbies and suppress a popping sound revolt from the engine, its popped off one its rubber caps again....
Man pulled mine apart and what a bitch to put back in...Feel like making hot rod with air box chucked out.
Taking apart again tomorrow
Seem to have throttle cables wrong
If it dies at idle and the choke only works full on its your idle circuit especially if stood for a long time I put new idle jets in mine and new air fuel needles screwed out the correct number of turns If you clean the main jets dont mix them up as on a 600 theyre bigger on the two inner cylinders to keep them cool, Clear the three small holes by the butterflies with fuse wire or guitar string and carb cleaner. Then bench set them Mine now runs like a swiss watch and pulls like a train. Keep the main jets standard and use a standard air filter.
standard jet is like 100 and 20???
@@fidelcatsro6948 Do you have a Bandit gsf 600?
@@stephenhoskins1532 sorry mine is a 1200 bigkitty ... if i ever opens the carb i will follow the same jet order like u said im not taking chances
The jet sizes may be written on main the jets
@@stephenhoskins1532 i see thank you..
Still too much gas in the exhaust I think. You have to make it leaner.
Thanks for the info, me not being a Mechanic I tend to look for the obvious and yes I have been told it should be running a bit leaner. My problem is convincing the Minister of Finance that I need to spend money on the Bandit.
The bike is 12 years old and in the next year or so I will be giving it a bit of an overhaul once the new shed is built.
(this bike will never be sold)
Mine idles at 3000 rpm but it's jetted with aftermarket exhaust. That normal?
Mine would idle at high revs too and could only ride it with the choke on. I have standard jets but a yoshimura carbon fiber can. Once I sorted out the rubbers which stopped the air leak, now idle is at 1000rpm.
I would recommend looking for air leaks.
@@wazzasworkshop4852 sweet thanks my dude
Please,loose the music
I would rather hear people talking and explaining things than listen to crap fucking music.
You only got my click because it was kind of interesting watching you type like you were a two-year-old it's called a carburetor not a carby
Thanks for the feedback.
I'll take it on board.
Cheers.
@@wazzasworkshop4852 don't let these piss ants bug you.
@@timmytool1231 thanks champ, nah not a problem. For me my channel has been a bit of fun but life events have slowed things down a tad.
I am up for all comments, good or bad or even the keyboard warriors. At least they are watching my videos lol.
Cheers for watching and taking the time to comment, much appreciated mate.
@@wazzasworkshop4852 well you have a good attitude, I used to race GS1100's back in the day, here i am 68 and buying a 10,000 miles 2000 Bandit 1200, she's going to need some TLC, lots of sitting, but I know that engine, am so looking forward to fixing her up.
@@bingobandit you can't beat the Suzuki 4's. Me and my brother raced a GS1000 speedway sidecar back in the late 80's and had a blast. I won't be going too much bike stuff short term as I don't have the room at the moment and am unemployed but have some ideas for down the track.