Newbie.. just finished first install

Discussion in 'Introduce Yourself' started by ziosi, Jun 4, 2011.

  1. ziosi

    ziosi New Member

    View attachment 32015 He all,
    Glad to see this site exists. I just installed my first engine. Grubee skyhawk. went pretty well. i hope. will try and fire it up tomorrow. i live in new orleans and hope to use this as my main mode of transportation.
    i am having one issue. the clutch is really difficult to disengage. when i pull the handle it barley disengages and wont remain disengaged in the locked position. i am hoping running it will loosen it up. any help would be appreciated.

    thanks for being here and i look forward to using this great resource to help maintain my new toy.

    Attached Files:

    Last edited: Jun 4, 2011

  2. olow

    olow Member

    as for the cluch on the right take the screws out on the cover inside u will see 2 gears look at the big gear in the middle u see what is called aflower nut in one of the little holes u see a small screw take screw out move the big flower nut counter clock ways 2 notches and insert the small screw again if this dont work go back again and loosen again 1 or 2 more turns let us know
  3. ziosi

    ziosi New Member

    thanks for the help. i moved the flower nut three notches and the clutch seems to be disengaged now when in the locked position. still rolls a little rough but the clutch is definitely disengaged. i may try and mount the roller for the clutch cable as i saw in a different thread as it is still tough to manipulate the clutch handle. also, what is the best tool for loosening the flower nut. i manage to use some needle nose pliers but i got to believe there is a better tool.
    thanks for the help and will let you know how the bike the runs.
  4. ziosi

    ziosi New Member

    well it seems the clutch will disengage now but, but it is extremely tough to pedal with the clutch disengaged. i am trying to start the motor with out the bask tire on the ground before i actually ride it. any suggestions?
  5. rustycase

    rustycase New Member

    Might as well take 'er for a spin... needs a breeze for cooling.

    Don't head off downhill! :)

  6. ziosi

    ziosi New Member

    im nervous to start it while riding as it was my first build. i rebuilt a goped once and started it up and didn't the realize the throttle was stuck wide open and it took off and attacked me. i would just prefer to to have it started so i can check out all the moving parts without putting my self at risk.
    i may just take it for a pedal ride with the spark plug disconnected and just see if i can get things moving
  7. rustycase

    rustycase New Member

    Don't do that, Z...
    It really does need the fuel in there for lube, and it needs that fuel to burn so it doesn't get all loaded up.

    If you are nervous, verify your kill switch first thing.

    This is why brakes are so important... well, among the reasons!
    You can overpower a china motor with good brakes, and dragging your feet, if necessary. All else fails, put down yer feet and let go of the handlebars if yer not going too fast! They make em by the gazillions, but there's only one you.

    I've made most the less than fatal mistakes over the years...
    a stuck open throttle discovered at the very first stop sign on a brand new scratch build of a 74cu in mc was a thrill

    Still proud of my new scooter, the next day I made a zippy exit from where I was parked at the curb... well, I tried to... back wheel slipped out in a grease spot on the pavement, the mc fell on top of my right leg and revved while the pipe heated up. It was a minute or so before the other guy came back to get that machine off me!

    I got a proper spring and fixed that throttle!


    Fact of the matter is, you can't fix stupid.
    I'm still working on that.

    Last edited: Jun 5, 2011
  8. ziosi

    ziosi New Member

    ha... thats the stuff i want to avoid...

    i put some fuel in and got it started. ran for a minute but the chain became super loose. i adjusted the chain tensioner and started up again. let it idle for a minute with clutch disengaged. suspended the back tire and let the clutch out. again the chain became super loose and before i could stop it the chain snapped. went through all the motions again started it up and again... chain became super loose. i cant get the tensioner to stay in place. i tried mounting it over a piece of old bicycle tube and it still keeps getting pulled towards the inside of the bike. if i can get this chain tensioner to work i think ill be in good shape.

    been trying to search the forum but cant seem to find the right search terms. looks like it might be time for me to move into one of the "real" forums!
    : ?
  9. Big Red

    Big Red Active Member

    First install

    Hey siosi,
    First, get rid of the rubber. It is almost impossible to get it tight enough to keep it in place on rubber.
    It sounds like your lower tube it a little smaller than most. They make these things to fit "most" bikes, not "all" bikes.
    I've coverd this question before, I can't remember where.
    Throw the short rounded peice in your junk box. Then take a flat peice of GOOD steel, cut to size, drill holes acordingly and bolt on TIGHT.
    As it bolts on the steel will bend some around the lower tube, just keep on untill it's TIGHT. You really don't want the tensioner jumping into your spokes at 30mph.
    I've tried the rubber thing and it NEVER really works right. One day the factory people might come up with a better solution, untill they do I've found this works best for me.
    Big Red.
  10. rustycase

    rustycase New Member

    Z, Welcome to the land of unanimous dislike for that chain tensioner!
    As Red said, there's some good posts on improvement when you learn how to search button...

    Well, "avoid" is not something in my vocabulary, Z.
    I might be THE poster boy why it's impossible to build a foolproof system... fools are very ingenious!

    What kind of tools have you got on hand, Z ?
    Have you got tin snips to cut some shim stock from maybe a tin can for a temp fix? A couple wraps might do it.
    Soda cans are too thin for this application.
    All kinds of little metal thangs are available at thrift stores for 99 cents.

    Glad you're having fun
  11. ziosi

    ziosi New Member

    Thanks guys... although i just learned anther lesson about patience. I tried mounting it on a different piece of the frame where it gets a bit fatter, instead of so far back. popped the clutch, and it came loose and ripped out three spokes.
    bummed is what i was. at least its been a good a project that kept me busy all weekend. guess ill have to regroup and get back at when i can get a new rim.
    i will certainly be fabrication my own bracket to fit the frame.
    thanks for the help and im sure ill be back soon .... and often.
  12. rustycase

    rustycase New Member


    Popping the clutch puts every bit of possible tension on the BACK side of the chain, which is directly contacted by the tension roller.

    If you are not able to ease that clutch out just a little, when starting, you should probably fab a stronger unit AND pin it to the frame so it will not shift position.

    There's already good threads on this problem...

  13. ziosi

    ziosi New Member

    i dont see any problems with easin the clutch out. i just have to learn how to operate the bike smoothly. the problem now is what to do about the rear rim. i guess im going to have replace the whole rim since it ripped the nipples right through the rim. cant decide if i should replace the whole hub and gears or just the rim.
  14. tone2crazy

    tone2crazy Member

    just get a whole new rim, its usually cheaper then having one built. and the same exact thing with the tensioner happened to me.i went to home depot and got a long strip of metal and some u-bolts and made my own.
  15. rustycase

    rustycase New Member


    I'll agree with that!

    Might be best idea to swing by wallyworld and buy whatever bike is on sale that will fit your frame. Probably cheaper than purchasing one single rim and paying labor, (or even spending your own time) lacing it up.
    And you'll get lots of spare parts along with the deal ... like tires and tubes and ...

    You already have a spoke wrench, right?
    Guaranteed there will be loose spokes on a wallyworld bike!

    Have fun!
  16. ziosi

    ziosi New Member

    been looking on craigs list for a cheap bike hat will work. might just go find one at wall mat or something. i guess in will have to be purchasing a spoke wrench as well. truing wheels is going to be a new skill that i guess i will have to become good in order to keep my by running smooth.
  17. ziosi

    ziosi New Member

    well i finally found a bike... for cheap. moved the set up to the new bike and got to take my first ride today. woohoo.... i have a few questions though. the chain sure seems jumpy... i am confident that i have the tension right but it just makes me a little uneasy to watch the chain bounce around. also, it appears my kill switch isnt working. do they stop working often or is it that maybe im doing something wrong?
    anyway looking forward to taking it for a real good break in ride tomorrow..
  18. Stan4d

    Stan4d New Member

    Search for your answers and you will find them. But I will say that you might want to look at your sprocket alignment......sounds like it is not centered on the rear wheel.
  19. Big Red

    Big Red Active Member


    Congrats on yer first build.
    stan4d is most likely right about your sprocket. It is one of the more sensitive parts of the build.
    Just kidding. And yes, the stock kill switch blows. First test it with a low voltage tester. If no continuity when pushed then you can either take it apart to see why, or just replace it with a better one. Just make sure you can reach it easily in case of emergency. What I mean by "EMERGENCY" is throttling out of control towards an intersection. Hey, stuff happens.
    Big Red.
  20. ziosi

    ziosi New Member

    thanks guys... i will check the sprocket. however after my first commute to work today the chain seems to have settled down. i am realizing how important it is to operate these things correctly. now that i am use to the clutch it is a much more enjoyable ride. and as far as the kill switch... meh... seems when i come to stop or want to slow down as long as as the clutch us in i can idle down and the engine will stop.
    next step... clutch adjustment. still tough to work but i believe i will be able to dial that in.