How often do you clean your exhaust port?

Discussion in 'Performance Mods' started by BchCruizer, Nov 19, 2012.

  1. BchCruizer

    BchCruizer Banned

    I had noticed a power loss on my kit and i went over the carb the spark plug checked the fly wheel magnetos to see if they were rusted and checked exhaust to see if it needed cleaned and i remembered i just cleaned it a few months back and I looked down to notice my exhaust port in the head was about 70% clogged! So I cleaned it out with some wd40 and wooded chopstick ( used wood so i didn't scratch the piston) and slapped it back together and she ran like new! I didn't realize how much power i really had lose until I got on my bike and ran a full potential. I clean my exhaust about every 75 hours. It makes a big difference.

  2. Fabian

    Fabian Well-Known Member

    70%, i find this figure hard to believe, considering my bike has traveled 40,000 kilometers in 3 years and i've never cleaned out an exhaust port; never even having an exhaust port that was even remotely clogged, and i use 25:1 oil/fuel ratio.

    Having said that, my bike virtually runs at 100% duty cycle because of the loaded trailer weight - the engine is always working it's guts out.
  3. BchCruizer

    BchCruizer Banned

    Dont forget mine kit is only 26cc engine. but it was very clogged..what you think i just make this stuff or something..your engine probally has a good exhaust with a exhaust pipe..mine is just a weedater time i will take a pic for ya
  4. Fabian

    Fabian Well-Known Member

    As you know, my setup uses a 2-stroke Chinese bicycle engine, and runs with a stock standard exhaust system.

    Maybe you should loose the 26cc weedeater contraption in a ditch and get a proper 2-stroke centre mount engine, that doesn't clog up exhaust ports.
  5. Purple Haze

    Purple Haze Active Member

    Sounds like you're running too much oil in the mix, or running some kinda crappy oil. 2 strokes will have some buildup by their very nature, but yours sounds extreme. How long do your plugs last before fouling out? I agree with Fabian, ditch that thing and get a real motor. Those weedeaters at the big box stores are total crap, built to a very low price.
  6. jaguar

    jaguar Well-Known Member

    or your fuel/air mixture is too rich
  7. BchCruizer

    BchCruizer Banned

    The engine it self has proven to be reliable and has worked great for me. thats the 1st time i have any problems with it and its has tons of miles. My spark plugs last around 3,000miles before i clean them. If the only problem i have is cleaning my exhaust port every few thousand miles i would glady take that over any center mounted bike kit..thats pretty much the only thing thats has givin me any problems with this kit.. and it never stopped running it just slowed took me about 5mins to fix the problem once i realized what it was..good enough for me! just because its a small 2stroke doesn't mean it's junk. I guarantee theres way less maintenance on my bike than any center mounted..I kit..i ride atleast 30miles everyday and have not once been broke down along side the road..but i do run the oil rich some times im sure thats alot to do with it..
  8. Samdallas214

    Samdallas214 Member

    I sound like your using to much oil, but ha if it's simple to fix and it runs great with the mixture you are using then as the old saying goes if it ant broke don't fix it.
    I would clean it every once in a wile and live it alone.
  9. Fabian

    Fabian Well-Known Member

    Why you BchCruiser; why you. Why do you make comment on how amazingly good friction drive kits are, yet you are having your fair share of issues, just like those who experience their fair share of issues with the Chinese 2-stroke kits.

    C'mon BchCruiser, it's time to get a different system when the engine regularly blocks up the exhaust port to the point that carbon needs to be hacked out of the system with chopsticks.

    It's almost sounds like a script out of a bad "B" grade Kung-Fu movie.
  10. BchCruizer

    BchCruizer Banned

    Ya i have had one issue in thousands of miles and the kit never stopped working it just slowed down and now it runs great. I will gladly clean out carbon outta the exhaust port every few thousand miles its once a year i gotta clean it..eww big deal.takes me 5min..its called maintenance.. atleast the kit hasnt stopped running or left me broke down. I will stick to my 26cc bee..its a good kit..i get 30mph outta a 26cc engine..thats over a mph per cc..i dont see your 66 cc kits or 80cc kits doing that..i think im good were im at fabian..thanks for your feed back though i will keep all that in mind buddy!
  11. BchCruizer

    BchCruizer Banned

    Ya thats i was thinking ya know having to take 5mins outta my time once or twice a year isnt that big of a deal. I think i can handle just glad that that was the problem cause my kit has a ton of miles and i thought it was on its way out..but once i cleaned it out it ran like im think im good to go! thanks for the feed back.. i was just curious if anyone else has had that sure it has to do with running my oil to rich..i think im gonna run the recommened mixture and see what happens..
  12. BchCruizer

    BchCruizer Banned

    omg fabian i have one minor problem and you think i should just toss my kit aside and get a chain drive..get over your self! all kits have problems some worse than others!
  13. Fabian

    Fabian Well-Known Member

    :whistling: An exhaust port that blocks up 70% isn't exactly a minor problem.

    Whomever bought that engine and installed it on their bike needs to be fired!
  14. darwin

    darwin Well-Known Member

    Every once in awhile the screen in the muffler needs cleaning the carbon off. Applies to 4 strokes/2 stroke jap motors.
  15. BchCruizer

    BchCruizer Banned

    It took thousands of miles to get that way and it took me 10min to fix it and the bike runs like new..sounds pretty minor to i said get over your self fabian..your type of kit has many more problems than that..the 2 years it took you get your bike reliable i was riding mine everyday to work..same keep that in mind..
  16. BchCruizer

    BchCruizer Banned

    I hadnt cleaned it in a while and i think the carbon just built up in the port cause it had no where to just glad it never stopped running and now it runs like new. Since i cleaned it out..not that big of deal..just had to realize what was going on.
  17. How often do you clean your exhaust port?

    Every time i drop a three times a day
  18. BchCruizer

    BchCruizer Banned

    ROTFLMAO-that was great!
  19. Fabian

    Fabian Well-Known Member

  20. Quadranut

    Quadranut Member

    too friggin funny

    Thanks Chris you made my day