KLR650 Only Thread......

Discussion in 'Thumpers' started by willys, Nov 19, 2011.

  1. SkiBumBrian

    SkiBumBrian DualSport Crazy !!

    Joined:
    Jan 15, 2012
    Oddometer:
    1,051
    Location:
    Redding, CA
    What big bore? What exhaust did you run? Carb mods? Airbox? All these things play a huge part in your KLR performance bore kit or not. I have went abt as far as the stock motor can go (688 port valves cam) without a pumper carb or FI (which I will not do). The point is you have to have to whole package. Bigger lungs, bigger exhaust, fuel mix.
    They run lean from the factory but everyone wants mod the exhaust first without first richening the system causing a critical lean condition at sustained RPM.
    I doubt it was catastrophic failure.....

    Pics of damage would be nice.
  2. Thumper26

    Thumper26 Adventurer

    Joined:
    Jul 22, 2012
    Oddometer:
    15
    Location:
    A barrier island in NJ
    My search for a used KLR 650 continues but a thought entered my head (a major event!). What grade gasoline does the KLR use - regular, or does it require premium?
  3. Nitro1970

    Nitro1970 Been here awhile

    Joined:
    Mar 30, 2011
    Oddometer:
    191
    I run regular in mine... I happen to know where an 07 with around 3500 miles is at to.
  4. Thumper26

    Thumper26 Adventurer

    Joined:
    Jul 22, 2012
    Oddometer:
    15
    Location:
    A barrier island in NJ
    In what state is it located?
  5. Nitro1970

    Nitro1970 Been here awhile

    Joined:
    Mar 30, 2011
    Oddometer:
    191
    It's located in Port Arthur, Tx
  6. Aprilia

    Aprilia Been here awhile

    Joined:
    Sep 15, 2008
    Oddometer:
    783
    Location:
    Flagstaff, AZ
    I have 2 KLR's. One requires premium when temps go above 105F (common around here) the other needs premium when temps soar over 110F. (unfortunately also common around here lol) This is to prevent pinging under light loads.
  7. bess227

    bess227 Adventurer

    Joined:
    Jul 22, 2012
    Oddometer:
    78
    Location:
    N. Wilkesboro, NC 12 miles to the BRP
    looking for some input from some of you KLR gurus.

    my new to me 99 and i have about 1k miles together now.........it had 3k on it when i bought it. it was basement kept, really a garage queen, had been put back on the road after a long sit by a knowledgable mc guy.

    bike seems to idle a little rough, and i am getting about 48 mpg basically on a 25 mile round trip commute daily and another 150 or so additional miles each week. there have been no mods to the engine that the PO knew of. he had put it back on the road after a buddy of his died.

    is this mpg about right for a 99? I am going to change the plug, as the PO said he had not (and soon do the doo).

    is there anything i need to look for, or do, that will help it idle more smoothly? or help the mpg? it runs well under load at low speeds (as long as the rpms are up around 3k) and does well at 4k rpms at about 60mph indicated.

    thanks for the help.

    Scott
  8. XDragRacer

    XDragRacer Long timer

    Joined:
    Mar 25, 2009
    Oddometer:
    3,325
    Long-distance diagnosis, but . . . assuming the prep included carburetor cleaning, you can perhaps improve idle stability by adjusting the FUEL SCREW.

    To adjust, remove tamper-resistant plug (underside of carb, engine side) by drilling hole and "picking" out the plug; bottom fuel screw LIGHTLY (with small flat-blade screwdriver), then back fuel screw out about 1.75 or so turns, good starting point for a stock engine.

    This adjustment should fuel-enrich your idle mixture; conventional wisdom has KLR650's factory-set fuel-lean initially, in fear of emissions violations.

    Otherwise, with clean pilot circuit, clean air filter, at about 1200 rpm, should idle reasonalbly smoothly.

    For a good primer on your carburetor, click here:

    http://www.gadgetjq.com/keihin_carb.htm

    P.S. FORGET ABOUT your fuel mileage! You're doing fine!
  9. bess227

    bess227 Adventurer

    Joined:
    Jul 22, 2012
    Oddometer:
    78
    Location:
    N. Wilkesboro, NC 12 miles to the BRP
    Ok thanks!

    I will start there. I had read of the fuel screw but was hesitant to attempt it. I will give it a shot, and thanks for the link. I knew when I bought her there would be some wrenching. so far very pleased with it overall.

    My mpg questions stem from an 07 S40 Boulevard 650 that got about 60-63 no matter how hard you rode it.

    thanks again.
  10. Adiventure

    Adiventure Adventurer

    Joined:
    Oct 27, 2011
    Oddometer:
    70
    Location:
    Newton MA
    Seems like someone done fuck up, possibly me, but I'm not pointing fingers.

    How would one go about fixing this problem?

    [​IMG]

    [​IMG]
  11. GAS GUY

    GAS GUY MILE EATER

    Joined:
    Jul 27, 2007
    Oddometer:
    3,732
    Location:
    Garden City, Michigan
    Center punch the center of bolt and try reverse drill bits and easy outs.Start with small bit and work your way larger if you have to.
    Also apply some heat and try easy out.
    Take your time and be patient.
  12. GAS GUY

    GAS GUY MILE EATER

    Joined:
    Jul 27, 2007
    Oddometer:
    3,732
    Location:
    Garden City, Michigan
    If there is enough bolt sticking out to get vise grips to bite, you may be able to heat the boss up real hot and turn it out.
  13. Yokomo

    Yokomo Gorilla Adventurer

    Joined:
    Sep 10, 2008
    Oddometer:
    2,365
    Location:
    The Little Apple
    presoak with PB blaster and drill out
  14. yokesman

    yokesman Been here awhile

    Joined:
    Sep 12, 2008
    Oddometer:
    550
    or PB and cut a slot and screw driver it out,you didnot say how it was done,going in or frozen and coming out.
  15. CycleDoc59

    CycleDoc59 Wrench Rider

    Joined:
    May 24, 2006
    Oddometer:
    984
    Location:
    East Virginia
    Good suggestions above, but not likely to work. That exact problem
    has happened to dozens of KLRs. The solution if it refuses to come
    out is to grind it off and weld on a nut for a new bolt, then use a little
    Maalox so it won't seize again....
  16. redog1

    redog1 KLR650-2009

    Joined:
    Sep 4, 2009
    Oddometer:
    1,821
    Location:
    Magalia, CA./ Butte & Siskiyou C.
    ...on my 1990. Ground the remaining bolt down flush, carefully drilled it oversized and welded a new nut on, reinstalled the sheild. No problem since.
  17. trapperj

    trapperj Been here awhile

    Joined:
    Mar 6, 2011
    Oddometer:
    496
    Location:
    Knoxville, TN
    Added the light mount from Twisted Throttle to my '12 KLR ..followed the directions... Which were good..IMHO compared to most. Nice parts that bolted up well. Problem is at speed ..(45 or more) there's a bad vibration. It's not a little rattle...it's awful. I believe the sport bracket that came with the light bracket is causing the problem. I plan to do a do -over tomorrow to see if I missed something. The supplied rubber washers are where the directions illustrate...anyone else have these. Any ideas.? No way I can get used to this....something is wrong somewhere. I will call TT tomorrow after I re do. I really like the location up top but something is wrong.
  18. XDragRacer

    XDragRacer Long timer

    Joined:
    Mar 25, 2009
    Oddometer:
    3,325
    If I couldn't get a good bite with Vise-grips, I think I'd try this approach first; looks like there may be enough meat for a hacksaw blade or a Dremel Moto-Tool cut-off wheel to cut a slot for a flat-blade screwdriver bit . . . then, I'd consider an impact driver (maybe an impact wrench) to back the bolt shaft out . . .

    I've had few successes with Easy-outs; have been forced to drill out the bolt remnant entirely, re-tapping the hole and using a new bolt . . .
  19. DesertDuster

    DesertDuster Old Pueblo Rider

    Joined:
    Apr 17, 2009
    Oddometer:
    194
    Location:
    Kingman, AZ
    A friend had a 07 KLR that average high 40s while my 09 averaged in low to mid 50s until the front sproket was replaced to a 14 tooth. Now I average 48-50 mpg. The newer KLRs are jetted leaner and probably get better mpg due to that reason. Try some Seafoam gas treatment and keep riding. How are the tires? Do the wheels turn freely? Condition of the chain? Any drag from the brakes?

    48mpg for a 99 might be a good mpg.

    .
  20. Whitebread117

    Whitebread117 I do what I want

    Joined:
    Apr 11, 2011
    Oddometer:
    455
    Location:
    abroad
    Not horrible but not great imo. I average 50ish with 14t front sprocket and relatively heavy throttle hand. When I was running 15 and 16t front sprockets I was getting 53-55mpg with the occasional tank over 60mpg. Even running 70 down the interstate I'd still get low/mid 50s. 10% ethanol 87 in the cold and 89 in the summer.

    Tuning idle circuit will help with idle and decel popping, new properly gapped plug, make sure exhaust header bolts are tight, check carb boot. check/clean air filter, oil at proper level, tire pressure. The simple stuff can add up to several mpg.

    :beer