Question about 1992 Suzuki DR 650 RS-E

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1995 DR 650 engines rund rough most of the time

My 1995 DR 650se runs rough 90% of the time, Every now and then it will just start running perfectly smooth. I've changed and gapped the plugs, checked wires and coils I need to know what can make this happen

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  • tpage40 Jan 11, 2009

    I'll try that tomorrow. I just figured or hoped that if the carb either works right or doesn't work. I didn't think it could be intermittent Thanks for the link. Any idea where I can get a seat cover for a 95?

  • Anonymous Jan 14, 2009

    O-kay not sure if I am useing this site right. But, my 1995 dr650 is still running rough.  It will dureing the course of a ride smooth out to where you don't feel any vibration but always returns to a hard vibration.  I don't loose any horse power, it doesn't backfire much, I've pulled the card and cleaned and inspected all parts, the wires are good, replaced the plugs and battery, coils have good spark, changed gas the tank.  What am I missing?

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Carburetor issues will cause that. Could be anything in the carb from worn seals to worn needles or seats. Do you have a manual for the bike? Clymers or Haynes gives a fairly detailed procedure for a carb rebuild. There is a large free manual here, not sure which year it is. Do pay close attention to which carbs they mention, I believe the carb has changed over the years.

Posted on Jan 11, 2009

  • Dick
    Dick Jan 11, 2009

    For a seat cover I would use a local upholstery shop, autos or boats. As long as your seat pan is still good they can put new foam in it if it needs that and new vinyl in any color you like. Less than $100 usually.

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1 Answer

1995 Suzuki DR650 running rough


Ignition timing is preset and only very badly worn camchain or valve-train issue would have an effect.

You may have a problem with the floatbowl height.
It is an incremental fix, in that you set it and see how it responds.

The fuel availability is governed by the height of the float levels. This can be adjusted by bending the small brass tab on the float spindle. Try adding more fuel first, or bend tab upwards very slightly. you don't have to remove the carby every time, just loosen the front and back manifold clamps and rotate carby so you can acces float chamber screws. The float pin can be pulled out and tab reset. Don't forget to turn fuel off and have a spill tray ready when undoing floatbowl drainplug each time.
Site below has exploded view of the carby with part names, links to all sections of the bike.
Clean all the jets with a carburetor solvent and check fuel line for perishing. Are inlet manifolds in good condition and not have a chalky feel on the insides, they should be shiny and feel slippery for efficient results.

Goodluck, cheers!

http://www.cmsnl.com/suzuki-dr650-1995-rses_model13242/partslist/FIG-11.html

Jan 14, 2009 | 1992 Suzuki DR 650 RS-E

1 Answer

95 DR 650 running rough


Hi and welcome to FixYa,

Initially, a couple of things to explore/consider and/or try:
  • compression test;
  • check/replace sparkplug;
  • check timing;
  • rebuilt carbs;
  • check for possible air/vacuum leak.
A remote possibility is the regulator causing an increase in voltage making the CDI erratic or shuts down in any RPM above idle.

Pls post back result(s). Good luck and Thank you for using FixYa.

Jan 11, 2009 | 1992 Suzuki DR 650 RS-E

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