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Honda Recon motor question

Discussion in 'The Okie Corral' started by frank_drebin, Jan 3, 2013.

  1. frank_drebin

    frank_drebin 1-man flash mob

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    Last week I bought a 1998 Honda Recon TRX250. It was sitting covered in the garage of a widow for 13 years unused. After cleaning it up it could pass for "almost new". I replaced the battery and tires, changed the oil and replaced the air filter. It fires up and runs strong but will not idle at all. It just dies.

    Where would you start? I'm guessing I need to pull the carb and rebuild/clean it.
     
  2. Annhl8rX

    Annhl8rX

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    Yup...the carb would be the place to start.
     

  3. AK_Stick

    AK_Stick AAAMAD

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    Plugged jets in carb/idle screw out of adjustment.

    If it fires right up, I'd tinker with the idle screw before I opened the carb up.



    Why'd you buy a kids quad as an adult?
     
  4. janice6

    janice6 Silver Member

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    Anything I have had stored with fuel over an extended time had the fuel volatiles evaporate out and leave varnish on everything in the fuel system.

    The second problem is that the gaskets seem to dry out and shrink with some even splitting/cracking. When gaskets shrink (if they do on yours) the mating casting parts get loose and leak air. Check all screw on the carburetor to see if any are loose and leaking.

    This does not mean you should neglect to overhaul the carb. It is always a good thing to clean/repair and develop confidence in it.

    On Outboard motors that have not been used for years, I squirt some 2 cycle oil into the combustion chambers and pull it over repeatedly. I have even had rings freeze in place and had to let the oil in the combustion chambers sit so it would run down the pistons and have had good luck getting them freed up. My 50's era motors run like a watch, albeit a smokey watch.
     
  5. frank_drebin

    frank_drebin 1-man flash mob

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    I have kids
     
  6. frank_drebin

    frank_drebin 1-man flash mob

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    Thanks, I'm pulling the carb tomorrow and soaking it in a bucket of carb cleaner. I can pull the jets I think and clean them as well.
    If that doesn't do it, I'll buy the carb rebuild kit
     
  7. AK_Stick

    AK_Stick AAAMAD

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    Last edited: Jan 3, 2013
  8. frank_drebin

    frank_drebin 1-man flash mob

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  9. AK_Stick

    AK_Stick AAAMAD

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    It's been a loooong time since I worked on a recon. But generally, on my Hondas Trx250Rs(share nothing with the Recon 250) and Rincon, the idle adjust is the horizontal screw, and I'm pretty sure on the Recon it's located on the right hand side. Vertical is pilot/main I think.

    In is lean, out is rich.
     
  10. frank_drebin

    frank_drebin 1-man flash mob

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    Awesome, thanks
     
  11. jrd22

    jrd22

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    It it's like the carb on the Rancher there will be a spring loaded knob to adjust idle speed on the right side. Is the choke working properly? On the Ranchers carb the choke is a cylinder with a piston in it that moves up and down. If it is stuck (like mine was) the engine won't idle well. I had to drill the piston out (aluminum) and replace with new, it wouldn't budge even after soaking with PBlaster for a week. Sounds like a good cleaning and blowing out will fix it, just thought I'd mention the choke in case you need to take it apart.
     
  12. LEO/Dad

    LEO/Dad Navy Veteran

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    http://www.seafoamsales.com/

    This is great stuff for keeping engines clean. I also use it to decarbonize outboards. Mix with gas for maintenance! Originated in the north for the old 24/1 outboards.
     
  13. BigMoneyGrip

    BigMoneyGrip

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    Frank, it's gonna be the pilot jet that is stopped up. The float bowl will be full of scabs that will need to be cleaned out.

    Do not put the whole carb in the cleaner. There are rubber orings and gaskets that it will dork up. The Berryman's is the best. Take out the jets and soak them for about 20 min and then wash them off. Make sure you can see through them.

    I wouldn't adjust the idle screw until you have it running. Chances are, it ran fine when it was put up so the idle should be fine when you get it going.

    Good luck!
     
  14. AK_Stick

    AK_Stick AAAMAD

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    He said it fires up and runs, fine just doesn't idle. Prob not a clogged jet in that case.
     
  15. BigMoneyGrip

    BigMoneyGrip

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    I still have my money on the plugged pilot jet. I've seen it a million and one times. It can run and not idle. With a plugged pilot jet, it will run anywhere above 1/4 throttle.

    Also, using logic, most people won't "adjust" the idle screw before they let one set up. However, the will leave the gas in them, which plugs the jets.
     
  16. frank_drebin

    frank_drebin 1-man flash mob

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    Can the jets be accessed without completely tearing down the carburetor?
     
  17. BigMoneyGrip

    BigMoneyGrip

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    Sometimes you can loosen the clamps and turn the carb enough to get to the bottom. You'll just have to dig in and see what happens.

    I've got lucky on a few and have been able to squirt carb cleaner down the fuel line and get it into the bowl that way. I would give it a good shot every hour or so for a few days. You might want to try this first.

    There is a screw at the bottom of the bowl. Loosening this will drain the bowl.
     
  18. Rinspeed

    Rinspeed JAFO

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    Start with the Seafoam and go from there.
     
  19. Adjuster

    Adjuster

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    Not only SeaFoam in the carb to clean but also put SeaFoam in the fuel tank and drive it around for a day. SeaFoam will clean out anything. Marvel Mystery Oil in the fuel tank does wonders as well.


    /
     
  20. ppicasso

    ppicasso

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    My 1997 Recon is very finicky with bad gas, whereas my 2006 Polaris doesn't care about the gas. They use from the same gas can. I use b-12 chemtool in both after I had my Honda's carb re-built a year ago. The carb bowl had what looked like someone's tobacco spit dried out in it. I haven't had a problem since and both bikes sit two to three weeks between uses. I also keep both tanks brim full to prevent condensation in the tank between uses.