Question about 1993 Suzuki GSX-R 600

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Float wont shut off fuel when raised

2003 suzuki dr-650 dual sport, float seems operational there is no gunk or debris preventing float from stopping fuel but bike wont start and about 6 oz. of fuel was in the air box after about 30 min.

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Take the float bowls off the carbs hook up the fuel line and with the fuel flowing, push up on the float to where it looks level. this is where the float should be up enough to seal the needle valve from fuel getting by. if fuel is still flowing, adjust floats as necessary to cut off the flow. this should solve that problem. hope this helps...

Posted on May 28, 2009

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Needle or seat damaged. Fuel in air box ? Would be wise to make sure crank case isn't filled with gas... you may not want to star it.

Posted on May 28, 2009


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2002 Suzuki DR400 dual sport - My problem is I'm getting fuel into the gear box/crank case. Oil level keeps filing up with fuel - where is it coming from? Any ideas?

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I have a 1986 Suzuki ls 650, and the fuel mixture seems to be a problem.. The spark plug keeps getting fouled with only running every 100 miles.. as soon as I clean the black deposits off and reinsert...

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Gas is leaking from what looks like the air filter on my 2007 suzuki DR 650 what could be causing this

A stuck float in the carb. or a bad needle and seat which is what shuts of the fuel once the carb. is full of gas.

Please take a moment and rate my answer.........Thanks

Nov 30, 2010 | Suzuki DR 650 RS Motorcycles

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I recently had a dynojet kit installed on my 93 dr650rs....... i left the side of the airbox and fired her up, with a new air filter and 160 main jet she sounded MAD, so i re-fitted the airbox and it cut...

If my bike sounded mad I would shoot it, but that is a different problem.
It just may be circumstancial having no spark and flooding issues. Most likely some debris was set loose when installing new jets and has fouled the float seat. The neutral indicator lead may have also been dislodged from the loom connection when working on the carby. Check for any damage on the float pins and needle tab (small brass flange), Check plastic floats aren't cracked or split. Check wiring connections from leads exiting crankcases. If the dynojet kit is anything like my sigma6 XT600 kit, I was advised to drill several holes in the airbox lid, or remove the snorkel....they need to breathe.

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well it sounds like the float needle is not shutting fuel off whin the bowl is full of fuel you can lightly tap on the bowl of carb an that may make it stop what has happend is the bike has sat you may need to run a little fuel treatment through it or sea foam and that may clean the end of the needle off the way it works when the bowl of the carb fills with gas the float raises a needle valve into a brass seat and stops fuel flow into the carb fuel get old and starts to develop a tarnish on that nice pionty valve an then it won't stop gas the overflows just prevent to much into the motor try some fuel treatment and run it it may fix it self just from fresh gas an being driven worst case is having to clean your carbs still not to bad hope that get you fixed up

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New pressure washer has started and ran for about 1.5 hours. After it ran out of Gas, refilled and now it runs for about 2 min then stops. Its the same gas that was used when it ran for 1.5 hours. Any...

New machine... there are a few of things to check.

First off re-check the engine oil level. The engine has an oil level sensor and will shut off the engine when it senses a low oil level.

Then with the FUEL SELECTOR "off" remove the fuel hose to the carb. Using a catch container check the fuel flow when the fuel selector is turned "on". It should be a very rapid rate.

If you do not have good feul flow check the filter / filter bowl for debris. If nothing is discovered and you still have poor fuel flow check the fuel tank outlet port.

FUEL FLOW to carb is good Symptom persists


Remove the fuel float bowl and check for debris. There is an orifice jet in the bottom of the carb assy that gets clogged. Also take a look at the bowl nut for debris and clean as necessary.

Again using a catch container turn on the fuel selector with the float exposed. Fuel should flow rapidly with the float down and stop as you GENTLY raise the float to level. If it is still slow there is debris in the float needle seat and it will have to be cleaned out.
Fuel selector OFF
Reassemble / install the float bowl and test.
Fuel selector ON
Test for proper operation

Thanks for using FixYa,


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