Have some questions about parts of my carburetor on my motorized bike

Discussion in 'General Questions' started by micchael, Jan 20, 2013.

  1. micchael

    micchael New Member

    Can someone kindly and clearly explain to me as well as providing me an image sample of a bike with a motor on it along with the carburetor? I just want to have a clear and thorough understand on how to run my motorized Geneis Onex 29" bike for the very first time. I've never ridden a bike with a motor on it. I was given instructions but not quite 100% certain on what to check or do before starting the engine on my gas motorized bike.

    1. First, let me ask any of you and please correct me if I'm wrong and have patience with me since I am really a newbie at this. Is the first thing I need to do is check to make sure that I have my gas line turned on by turning the gas valve pointer downward facing towards the carburetor?

    2. Secondly, what happens if you forget to turn the gas valve on and you attempt to start pedaling the bike while holding in the clutch and giving it throttle at same time? I think I did this and did not push the valve pointer facing downward and when I got home I noticed it was updward all this time which may have been why my engine attempted to start at a certain speed but kept shutting down and I could not figure out why, and I was really exercising but at same time my heart was beeping like 120 per minute? This is a manual clutch we are talking about. I'm sure I'd be better off with an automatic clutch but I hear at same time they are expensive and you must know what you're doing when it comes to installing it. Need feedback on this second question.

    3. Third question, I've seen videos and heard bike riders with motors on their bikes using manual clutches that you should always first move the choke lever up before starting up the bike engine while riding then after riding with the motor firing up for a certain number of miles to then depress the choke lever back down because when the engine is warm engouh having the choke lever downward provides better performance. Is this true?

    4. Last question, I also heard that it's advisable to also press down on the tickler before starting to ride your bike, but where is the tickler located by the carburetor? what does it look like and is this a must before even starting up to pedal your bike before holding in the clutch and and pedaling on to give it throttle so bike will power on the motor?

    As you can see, this is quite a challenge for me but I'm sure that as soon as I get it all clear and get used to the process that it will be easier and easier for me. I hope it only gets easier. I need all the help I can get. The last thing I ever want to do is damage my engine as a result of not knowing what I'm doing. So, therefore if one of you or any of you could provide me with an image or a website to go to with a video that explains the different parts of the carburetor and gas line valve and tickler all of which would show their locations and what you would need to do before starting up a bike with a manual gas engine this would be the cure to my uncertaintly/problem. I brainstorm for a living working on computers and financial transactions, but when it comes to mechanical stuff I am just very weak in this area unfortunately, almost embarrassing for me to say for a guy. I'm glad I found this place so I hope I can reall benefit from this forum and learn from all of you.

    Thank You.

  2. Anton

    Anton Administrator Staff Member

    Turn the gas tap inline with the fuel line and you should see fuel flowing down the fuel tube and into the carby.

    If the gas valve is not on the bike may still start and run for a while and then it will stop shortly after and will not start again until it is turned on. This is because there may be a little bit of fuel still left in the carby from a previous ride. Note some fuel taps have three postions "ON", "RESERVE" and "OFF". Turn it to "ON" to start the bike and then after a lot of riding or when the tank gets low the engine will stop. Turn the tap to "RESERVE" and it will use the last bit of the fuel in the tank. Helps to remind you that you have to fill up :)

    Pull the choke lever up when starting the engine, then once the engine is warm pull the choke lever down. If you leave the choke lever up the engine will suck in too much fuel and basically run like crap when it's warm.

    You should push the tickler a couple of times before starting the bike in order to prime the carby. You may not always have to if you ride daily but if the bikes been sitting for ages then the fuel will evaporate from the carby and the ticker helps in this case.

    NT Carb without Top Cap or Slide etc.JPG
    (Reference: http://www.motoredbikes.com/showthread.php?24867-NT-Carb-Tuning-Basics)

    If you do any of the above steps wrong worst that will happen is the bike will not start or run properly. Also read this thread (second post down) about running in your engine if it is brand new http://www.motoredbikes.com/showthread.php?30957-Running-in-a-new-engine
  3. Samdallas214

    Samdallas214 Member

  4. jefuchs

    jefuchs Member

    I'll tell you why I think mine didn't start, and maybe you have the same problem.

    What seemed to finally get mine to start was pulling the electrical connections apart, and pushing them back together back and forth a couple of times to get the metal parts to make a better electrical connection. I had already checked for a spark, and did have one, but I'm no judge of these things, and I think I may have been getting a very weak spark that was not adequate to start the motor.

    Reattaching the connectors worked to start it, but it died again soon after. Then I soldered them together, and it's started easily ever since.

    I know it looks like you have a good enough connection. I know you confirmed that you have a spark, but solder your ignition wires together and see if that doesn't fix it.

    I did a lot of damage trying to start an impossible motor, and now I'm sure a little solder was all I needed.
  5. micchael

    micchael New Member

    Anton, I need your help-Black liquid leaking from my gas motorized bike

    Anton, today I was able to start up my motorized gas bike wonderfully and I followed the directions you gave me. I put the fuel gas valve down inline which allowed my gas to flow through the fuel tube and into my carby. Then, after this I pushed down on the prime button(tickler button) 3 times and then I pushed the choke lever up. My engine would not start after I started pedaling and then holding down on the clutch inward and then letting go of the clutch and then giving it gas by moving my throttle at same with with the choke lever being up. Thus, I had to push the choke lever back down, tried again and then my bike was powering up wonderfully and easily. However, as soon as I arrived home and put my bike in storage and closed the gas valve, liquid has been coming out of my bike, I guess coming out of carburetor, but I don't know. the liquid color is pure black, thus I'm assuming this is not gas, but oil, is this correct? What's the reason for black liquid dripping on to my living room floor after I have stored my bike and have the gas valve on "off" position. I do notice that on the "fuel tube" which is the gas line where fuel flows down from the gas tank through the fuel tube going right into the carby, that on that round "bubble" part of the fuel tube, whatever it's called, seems to have liquid or gas in it. Could this be what my problem is? It's not leaking severely at all, but every once in a while it gives dripping without me noticing a little bit of black liquid, but gasoline is not black, this seems more like oil. Thus, I sincerely need your help because you know your stuff and you've answered all my questions clearly and straight forward. How do I fix this problem? I know nothing about bikes and stuff like this, so I do not want to touch or alter anything unless I know what I'm doing. I would appreciate your help very much. Thanks!
  6. Anton

    Anton Administrator Staff Member

    Have a look to see if the oil is coming from the end of the exhaust. A few drips coming out of a 2 stroke exhaust after a ride is nothing to worry about. Is it a new engine? Are you running it in with a higher oil to gas ratio than normal?

    If it's not that you may have a leaking gasket somewhere. If it was fuel then it would be almost clear and you would definitely smell it indoors. Have a look around the engine to see where it is coming from. Check around the lower gasket, head gasket and around the exhaust manifold.
  7. DoIt AllPauls

    DoIt AllPauls Member

    Is there a lot or a little post a picture of it
  8. micchael

    micchael New Member

    Replying to your questions to me based on your feedback about my oil drip-attn: Anton

    Hi, Anton. Thank you so much and kindly again for sincerely responding to my concerns. Ok, to answer your question about my engine if it is new, the answer is "yes" it is a new engine. This new engine of mine is very new. I bought it with my bike in the middle of December, 2012 and since then it's only been used 2 times by me riding the bike. So, yes, it's a new engine with an NT Carburetor 2 stroke engine. Anton, I had my ride yesterday as I mentioned, so, when I came back home into my apartment with the bike I have had 3 drips of oil. After this, believe it or not, no more drips occurred at all. I have the slightest idea where it came from so I'm glad you asked me. I am learning alot from you buddy. Next to answer your question about gas to oil ratio, I think I know what your'e asking me but not 100% sure since I've never dealt with this before as a result of being a 1st time motorized bike rider, but the type of oil I am currently using and which has been given to me to use for free as a start up and courtesy of my private dealer is the "New Low Smoke Formula" 2 Cycle Oil. It's "Multi-Ratio Blend Easy Mix Ashless which is an 8 oz bottle from "Briggs & Stratton". I was advised by my seller to put in 4 ounces of oil if using just a 1 gallon gas tank which is what I have. However, if using a 2 gallon gas tank which I'm not using, then to put in the entire 8 ounce bottle with the gas. I was told that I am to use regular gas which is what I have. So, Anton, am I ok and nothing for me to worry about based on what you told me and based on the info that I related to you regarding the questions you asked me? I think you surely relieved my worrries and good news. It didn't seem like there was a a big issue, but when I noticed the 1st and/or 2nd drip and finally 3rd than this is when I got concerned. After the 3rd nothing more dripped. Anton, thank you so much for your professionalism and courtesy in answering my concerns. I do have some questions for you to clarify for me and which I can learn from you which I will state below based upon which you brought up and important for me for future reference:

    1. You mentioned that after a ride it's nothing to worry about if just a few drips of oil dropped after my ride. Thus, is this something normal to expect when having a new engine that's been hardly used on my bike? If so, please kindly provide me with some details about this.

    2. Secondly, where is the "exahaust" located? can you provide me with an image of what the exhaust looks like on a 2 stroke?

    3. Thirdly and lastly for now, what is "the lower gasket, head gasket and around the exhaust manifold? I feel almost embarrassed asking you these questions which most experienced drivers and owners of motorized bikes and motorcycles would find obvious and view as a general question, but seriously, I am not too wise when it comes to mechanical stuff like these things and only learn by experience and asking questions. Thus, your feedback on this last question would surely help out very much. Also, if you can provide me with an image of these elements it would be very useful as well for the future. However, are these elements being the lower gasket, head gasket and exhaust and exhaust manifold part of the engine? Reason why I'm also asking is because when I look at my engine it is so hard to see the different elements. I can't even read or make out the name of the engine that I have, can't read model number or anything. However, it's more than likely a standard engine. I do know this much, most engines on motorized bikes are relatively the same and operate same way, etc, only difference in contrast is their horsepower. However, I'm sure if it were an exceptional one of extra ordinary quality that I'd know about it and definitely have the name.

    4) Anton, very final last question for now. Just so that I do not forget, whenever it's time for me to put gas into my gas tank on my bike using by 1 gallon gas tank, does the oil or gas get put in first? Simply, using my 1 gallon can of gas that I use to put regular gas in from a gas station, do you first put in the gas and then afterwards the oil or vice-versa?

    I look forward to your supportive feedback.
  9. Anton

    Anton Administrator Staff Member

    If it's coming from the exhaust it's nothing to worry about.

    The exhaust is the shiny looking chrome pipe hanging down from the engine. It's where all the noise comes out when you ride. Here's a pic in this thread: http://www.motoredbikes.com/attachment.php?attachmentid=3800&d=1199781945

    Exhaust gasket is where the exhaust meets the engine. Head and lower gasket are located above and below the exhaust gasket where the fins are on the engine. Again refer to the same photo as above. If you can find out where the oil is coming from, take a photo and upload it to this thread using the "insert image" button above.

    Gas in first and then pour the oil in second. Swirl it around a bit to mix it up.
  10. Fabian

    Fabian Well-Known Member

    Best to do that operation the other way around: Oil in first then add fuel.
    I've seen too many people get distracted (like answering a phone) and they forget to add the oil after the fuel. The result is an expensive engine rebuild because the thing has locked itself up solid.

    If putting the oil in first and you get distracted, the worst thing that can happen is a double amount of oil.
  11. Samdallas214

    Samdallas214 Member

  12. micchael

    micchael New Member

    Hi, Anton. Listen, I just had anothr drip of oil. Small though. It is extremely hard for me to determine where the oil is leaking from. The reason for this is simply because the drip of my oil is very slow. This is my 4th or 5th drip in 2 days. I can't tell if it's coming out form the exhaust or not. Very difficult. I would have to sit in front of my bike for hours in order to see exactly where it is coming from, see what I'm saying? Really hard. I'm trying to upload a vide for you to see on my bikes engine, etc. Didn't know you had use a urvl video like youtube or vimeo. Your feeback again as always would be greatly appreciated. If I can, I will send you a video that I created and see if you can determine at all just by looking to see where it could be possibly coming from. Let me know if this would be worth it or not, if it is, I will send you the link to the video in vimeo.
  13. micchael

    micchael New Member

    Hi, Anton. I created the video of my bike with the engine the other parts connected to it for you to view for a few minutes and see if you notice or have any clue at all of where the very slow oil leak is coming from. As I said, it's extremely hard to evalute this type of scenaorio because since it is not leadking from my bike every 5 minutes or even ever few hours or so, it's very hard to tell, do you agree? What I don't understand and find weird is the fact that it's not leadking now but then every several amount of hours it does very slowly and then stops, etc? On the video that I presented to you by clicking the link I have provided you or anyone access to, you will see just as the video faces down on the floor that black ink mark showing on my light brown vinyl floor. That's the type of drip of oil I've been getting here and then several hours apart. Again, where it's coming from, can't tell, would have to stay up all night for me to see this. However, since you are much more knowledeable about this thazn I am, then you may have more info to provide me with or if lucky figure out what the cause of this is. It doesn't sound like it's a leakazge problem because if that were the case than oil would be dripping non stop or all at one time. But like you said, it could be very well just the exhaust, or perhaps the gasket or something. Maybe something came off, like a tiny peace of material, or whatever that could be causing this to happen as well. I'm sure as you know, and likewise for anyone else mechanically savvy, the only actual and easiest way to determine this or fix this minor thing is to be able to actually look at it. I remember you asking me if I can find where it's leaking from and the leak, to send you the picture which would be nice. However, since I'm unable to do this due to the fact that it's not a consistent leak and each time that it has leaked I have not been present at the time that it happened due to the fact that it will take several more hours for the next leadk to occur afterwards if at all anymore, it's almost impossible for me to even have a slight clue. Thus, I sincerely apologize about this and not making it easier for you to further advise me. Has anyone else ever had such an experience like this, similar or any similarities to this description of my problem in any way?

    Ok, Anton and anyone reading my post, here is the link to the video for you to watch about my bike. It's called "My motorized Gas bike" from Vimeo. Feel free to watch, don't know how helpful it may be on answering my questions, but at least maybe an idea or whatever. Any opions or comments are greatly appreciated. Here is the link below:

  14. micchael

    micchael New Member

    [video=vimeo;58158259]http://vimeo.com/58158259[/video] My Motorized Gas Bike. In this video I have displayed my bike and the engine with it and other components connected with it. You will see on the floor a picture of an oil drip coming from my bike which has occurred a few times. Don't know and can't tell if it's coming from the exaust system, carby, or what. Any thoughts are ideas are welcomed.
  15. Anton

    Anton Administrator Staff Member

    I wouldn't be too concerned if the bike still runs. Keep riding and after each ride have a look all around the engine for the location of the leak.
  16. Anton

    Anton Administrator Staff Member

    Ok fair call with getting distracted but I've always thought that it mixes better when you pour the oil in after.

    I use a clear container so I can see the colour of the fuel change when the oil is added.
  17. Fabian

    Fabian Well-Known Member

    Now here this, now hear this:::::: My bike leaks oil like you wouldn't believe and it leaks oil from places that go against the natural force of gravity. You would only have to sit infront of my bike for 30 seconds to see it drip 5 drops of oil.

    It is completely normal for these engines to leak oil like the Exxon Valdez in Prince William Sound or a BP Deep Water Horizon oil spill in the Gulf of Mexico

    Remember the old adage: if it's not leaking any oil, there ain't any !!!
  18. dougsr.874

    dougsr.874 Active Member

    Is this guy spamming us.???????????
  19. Fabian

    Fabian Well-Known Member

    If he is spamming, you'll know about it soon enough when he starts to turn the thread into a Bumblebee friction drive infomercial.
  20. Saddletramp

    Saddletramp Member

    We call that "Hot Mixing" Emergency only. Fill the fuel tank then add oil. If you leave the petcock on you will get a carb of oil. I promise it won't run from oil alone. I carry 2oz on my backpack at all times. 70 miles gets me home.