Question about 2001 Suzuki GSF 1200 Bandit S

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Bandit 1200 oil in crankcase

On my 2001 Bandit 1200 , when changing the oil i found it had a substantial amount of gas in the oil, I just had my carbs rebuild, cleaned, and synced. After getting my bike back i was doing a oil change and new air filter. One problem i found is the guy put the cap for the air box run off tube on the gas tank vent hose, would this cause my petcock to malfunction and let gas run into the crankcase even though my carbs are set up right. Is there anyway gas could of got into the vacuum system and filled the crankcase that way.

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  • 74 Answers

No i would not expect it to, if anything blocking the vent hose to the gas tank would cause a vacuum and stoping fuel from flowing as easy , most likely a faulty fuel pump diaphram or incorrect float height.

Posted on Feb 23, 2012


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SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
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Posted on Jan 02, 2017

  • 3567 Answers

SOURCE: suzuki gsf 1200 s bandit

Christmas comes early. Go to the site below and you can download a free PDF service manual. Yours is the 1st one in the "Suzuki GSF" section of the list. 4 or 5 below that is a PDF parts diagram with part numbers. Most manuals are in English but some are not. There is no way to be sure without doing the download. You can always delete it if in a foreign language.

Top rating due for this answer! Thanks Asel :)

Posted on May 08, 2009

  • 3567 Answers

SOURCE: suzuki gs 750 getting a constant flow of fuel out of crank vent

The breather tube may warrant re-jetting but not re-syncing.

A “very helpful” rating for this answer? Thanks!

Posted on Jun 11, 2009

  • 333 Answers

SOURCE: torque settings for crankcase suzuki bandit 600gsf

Crankcase bolt (M8)
(initial):13 N-m (1.3 kgf-m, 9.5 lb-ft)
(Final):23 N-m (2.3 kg-fm, 16.5 lb-ft)

Please leave positive feedback if you feel I have helped.

Thank you

Posted on Aug 29, 2009

ollie reece
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SOURCE: 92 suzuki bandit 400 gs-f, ran but it didn't idle after carb clea

hi buddy on my bike i had this problem when you rev it it will rev down gradually so it changed the jets and ir worked so try this buddy then get back to me give me a good rating

Posted on Sep 15, 2009

  • 641 Answers

SOURCE: I have the same idelproblem with my bandit carb

When you want to change jets for more fuel.. they actually come in Jet Kits. you can try different sizes but will have to change 3 knobs for proper mixture of gas/air ratio. The knob adjustments you just have to try one at a time for proper adjustment and only turn 1 knob 1/4 turn at a time. Tightening the knob makes less gas flow and loosening allows more gas. the three knobs are for 3 different ranges of RPMs. there is a low mixture knob, mid range knob, and high rpms knob. for example if your RPMs at idle through 5k RPMs are boggy, you can try a 1/4 turn and if it gets worse do a half turn back and ride again. do this off the street where you won't disturb traffic. it takes a while to get it running properly mixed.

Posted on Oct 20, 2009

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2005 1200 s. Since not being ridden for 6 to 8 weeks,gas has leaked into crank case.Fuel tap has no shut off,so I assume there must be a vaccume activated diafram,of sorts,in the tap.Could this be...

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I just got my 1991 suzuki gsf m400 bandit it has been sitting for 4 years ..low on cash whare do i start

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2000 bandit 1200. Was sitting the guy that owned the bike tryed to do a carb rebuild then let it sit. We got the bike did the carb rebuild. The bike will run but give it some throttle it bogs down and...

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