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2005 CR85R struggles

  1. #26
    Soul Rider Paul_E_D's Avatar
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    Re: 2005 CR85R struggles


    Yeah. remove chamber, spray a bunch of brake clean in there, pour a few handfuls of small rocks in there, and shake-n-bake. This will also clean out carbon that can really build up.

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  2. #27
    Lifer Kurlon's Avatar
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    Re: 2005 CR85R struggles

    I like to load the pipe up with oven cleaner myself, really gets the carbon moving.

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  3. #28
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    Oddly enough I bought oven cleaner on a whim last week... never cleaned an oven in my life but a small voice told me it would be good to have in the shop.

    Cleaned the airbox and still getting the same thing.. fires up then quickly bogs out, all wet. So mousey isn't entirely to blame.. maybe.

    Haven't had much time aside from work & daddy duty this week but getting my hands dirty this weekend hopefully.

    Side note: might have some good riding weather tomorrow/saturday in which case I'll be squeezing some hours in on the gixx

    Side side note: Technically the bike still belongs to a buddy who refuses to sell it, but never rides it so I'm "taking care of it indefinitely". It's more like I'm fostering due to neglect lol The state had to step in

    Side side side note: I'm actually really interested in an RM85 for myself, I'm keen on the Suzukis and power valve sounds nice, plus they would make a great couple for some weekend fun. Been chasing out some craiglisters and friends and might end up with something.. anyone ride both?

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  4. #29
    Soul Rider Paul_E_D's Avatar
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    Re: 2005 CR85R struggles

    Uh, yeah. Oven cleaner is what I meant. It's been too many years... CRS

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  5. #30
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    Didn't even catch that... I think my brain autocorrected

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  6. #31
    Lifer typeone's Avatar
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    Re: 2005 CR85R struggles

    ah, i like CR80's more than RM's, happy to care for this for "you" : )

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  7. #32
    Super Moderator TheIglu's Avatar
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    Re: 2005 CR85R struggles

    Did you swap the plug yet and clean out the carb?


    It sure is easier typing, but those two things will likely fix everything that ails ya.

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  8. #33
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    Quote Originally Posted by typeone View Post
    ah, i like CR80's more than RM's, happy to care for this for "you" : )
    You'll be the first I think of if that need ever arises

    Quote Originally Posted by TheIglu View Post
    Did you swap the plug yet and clean out the carb?

    It sure is easier typing, but those two things will likely fix everything that ails ya.
    Quote Originally Posted by Tekime
    Haven't had much time aside from work & daddy duty this week but getting my hands dirty this weekend hopefully.

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  9. #34
    Super Moderator TheIglu's Avatar
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    Re: 2005 CR85R struggles

    Yeah, but you can stop working at any time. Priorities, man.

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  10. #35
    Old and Slow Sheppo's Avatar
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    Re: 2005 CR85R struggles

    pull the carb and make sure the mice didn't get into the reeds. I had that happen once

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  11. #36
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    Gave her some love last night, will pick up fuel tomorrow and see if it helped.

    What a fuss getting plugs. Five shops and all I could get was an Autolite. :/ Have some NGK's coming, air filter, Scott grips & FMF packing.

    - deep cleaned the air box; mouse was quite settled in
    - cleaned carb w/ air compressor/carb cleaner & inspected
    - cleaned/inspected reed valve
    - emptied old fuel, removed/inspected petcock & cleaned fuel filter, a bit cruddy
    - replaced plug

    The old plug was pitch black and wet. We'll see what tomorrow holds...

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  12. #37
    Day late, dollar short carsick's Avatar
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    Re: 2005 CR85R struggles

    Keep in mind that cold air leans out the mixture. Factory jetting on an MX bike does not take winter into account. A slightly lean 2 stroke is awesome right up until the piston melts. Speaking of which, excuse me while I go rejet.

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  13. #38
    Lifer typeone's Avatar
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    Re: 2005 CR85R struggles

    nice work and +1 to carsick's post ... while you have the carb out and clean, note the jets, needle, needle clip position and air screw position. jot all that down and compare to stock.

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  14. #39
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    Right on thanks carsick.

    Noted all the jets/settings but nothing stamped on the main jet, do I have to measure it or am I missing something? Took pics of it all in case.

    45 pilot which sounds stock

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  15. #40
    Lifer typeone's Avatar
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    Re: 2005 CR85R struggles

    hmm, the main should have a number stamped on it. if not, i would order stock + cold weather recommended.

    would be terrible to get it all buttoned up then wring the shit out of it having some fun in the snow only to seize the top end

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  16. #41
    Lifer Kurlon's Avatar
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    Re: 2005 CR85R struggles

    Pull it apart again, post pictures of what you're calling the main jet.

    The OEM main / pilot combo is a 142 main, 40 pilot FYI.

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  17. #42
    Soul Rider Paul_E_D's Avatar
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    Re: 2005 CR85R struggles

    Quote Originally Posted by Kurlon View Post
    Pull it apart again, post pictures of what you're calling the main jet.

    The OEM main / pilot combo is a 142 main, 40 pilot FYI.
    which should be just fine for winter. I'm not a doctor, but I play one on TV

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  18. #43
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    She's running great now! Just used 91 octane at the pump 32:1 per Honda for now.

    Thanks for all the tips guys. Pretty sure I fouled the plug by keeping the choke open for so long first time I started it, after that it was just a hopeless battle. Was in bad need of a tune up anyway so now I know what I'm working with!

    Quote Originally Posted by typeone View Post
    hmm, the main should have a number stamped on it. if not, i would order stock + cold weather recommended.

    would be terrible to get it all buttoned up then wring the shit out of it having some fun in the snow only to seize the top end
    No doubt that would suck!

    Honda calls for a 142/45 down to 39F then a 145 main down to about 20F. Gonna pick up a few jets this week and prob go up to 145.

    Quote Originally Posted by Kurlon View Post
    Pull it apart again, post pictures of what you're calling the main jet.

    The OEM main / pilot combo is a 142 main, 40 pilot FYI.
    Manual says 142/45 and the pilot is definitely a 45 atm

    Pretty sure it was the main jet. Haven't gone over pics but hopefully they reveal my stupidity lol

    That all being said... got a new set of tires for the spring so maybe I should throw some screws on these old ones, haha

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  19. #44
    Lifer typeone's Avatar
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    Re: 2005 CR85R struggles

    success ! dig it ... uh, pics ?

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  20. #45
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    Couldn't resist a quick test rip, I'm sure the neighbors would understand




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  21. #46
    Lifer Imbeek's Avatar
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    Re: 2005 CR85R struggles

    That thing looks FUN

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  22. #47
    Lifer typeone's Avatar
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    Re: 2005 CR85R struggles

    hell yeah, that is a sweet score. super fun machine right there!

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  23. #48

    Re: 2005 CR85R struggles

    Nice!

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  24. #49
    Lifer Tekime's Avatar
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    Re: 2005 CR85R struggles

    Couple goodies New jet on the way then I'll crack that carb again..


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  25. #50
    Soul Rider Paul_E_D's Avatar
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    Re: 2005 CR85R struggles

    Just FYI, one jet size poses no risk. You would have to be like 4 jets too lean and holding it WFO to cause a meltdown.

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