Question about 2003 Suzuki TL 1000 R

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Hi and welcome to FixYa,

On most bikes, your described problem indicates too lean a mixture. The air/fuel mix would have to be adjusted by reducing the air through the air adjustment screws. Additionally, you may want to check for any air leak on the air filter, air box and the bottom half of the airbox that is seated to the barbs.

Good luck and Thank you for using FixYa. Happy Holidays.

Posted on Dec 23, 2008

  • Louie  Role
    Louie Role Dec 23, 2008

    sorry, that should be "carbs".


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Install a power commander. This will take care of any backfiring by adjusting the air fuel mixture. You can program the power commander for the type of pipes you are using and high air flow air filter. I had the same problem when I changed out my pipes for Yoshi and installed a BMC air filter.

Posted on Dec 02, 2010

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Have the engine timing set and tune up.
The Valves must be adjusted every 3,000 miles.

Cheap gas will cause spark knock and after market pipes will cause back-firing. Have the carbs sync'd to the pipes.
The AIS system is often the cause of back-firing after installation of after market pipes. Typically the back-firing is minimal and rarely causes loss of power. Usually when letting of the throttle you will hear popping sputtering.

If this back-firing is while throttling up, get that timing set pronto!
Other causes can be from miss firing plugs to fuel additives over time gumming up the carbs and jets.

Possible Solution I found here:

"Suggest pulling the carbs off and cleaning them in Yamaha carb cleaner/dip.
With the fuel currently being sold, if it sits for 30 days in the float bowls, it evaporates and the additives form a gummy like substance that coats everything it was in contact with.
It sounds like you have some partial restrictions in the low speed circuits.
When you are taking your carbs apart, I would pay close attention to the pilot jets, internal passageways in the carb including the passageway for the fuel screw."

Good luck!

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