bad experiences so far :(

longhorn6 · #1 09-02-2009, 10:31 PM

Ok, so about a month ago I bought a grubee skyhawk 66cc motor kit from gasbike(dot)net. it arrived in perfect condition and looked sweet. So my dad and i got started (i'll go through the problems i've had to present problem) the first problem was that the chain that came with it broke while getting started and had to get a new one then that one broke too. both were regular bike chains. so i got a heavy duty bike chain that about half and inch thick. its like a motorcycle chain really big. just barely fits in the sprocket/holder/etc.......

that fixed that so it would not break now and i could actually go. then i/my dad got it all together perfect ready to rock although it would start but not go when i gave it gas it stopped and bauged out. so my dad put it on 1/5 throttle pin and it went like a beast/bat out of **** 40 or maybe over. but it wont idle/stop i presently have to turn the kill switch on and off to stop and go (constantly in motion) so we put it on 2/5 (throttle pin) and it doesnt go and bauges out so i doesn't like it over 1 but its full throtlle or nothing.

The throttle cable is loose but not to loose so WTF?? Note: every now and then it would stop with kill swith off so i'd give it a little gas then it would gooo i just dont know what to do, and now it won't even start anymore for some reason probably a quick fix or somethin IVE HAD A HORRIBLE EXPERIENCE WITH THIS SO FAR Almost gave up a couple times and wanted to throw this chinese piece of crap in the dump. its like its nmade out of potmetal not even real metal. i had another problem not related to the motor/carb not working if anyone wants to hear mounting/potmetal dont mix if anyone wants to know lmk. ANY HELP ?? first time on a motorized bike forum u guys popped up first on google hehe

MB-Monkey · #2 09-02-2009, 10:44 PM

first thing i would check would be the throttle slide inside the carb housing. sounds to me like it is not lined up in the notch and nub there fore the needle does not operate properly. Unscrew the top of the carb and remove all parts. verify that they are together properly then put the slide back in make sure you line the nub up on the carb housing to the notch in the slide. take off the air cleaner so you can see inside and make sure the slide goes up and down with turning the throttle.

longhorn6 · #3 09-02-2009, 10:48 PM

ok im going to go check that right now even though i THINK thats not the problem

boz_m · #4 09-02-2009, 10:50 PM

Check out this thread for info on proper carby setup.

http://motorbicycling.com/f4/carbure...build-195.html

good luck

Kevlarr · #5 09-02-2009, 11:24 PM

From what you're describing it sounds like you're either not using the clutch or you don't have it adjusted properly if you have to use the kill switch to stop.

MB-Monkey · #6 09-02-2009, 11:31 PM

i agree that too can be an issue at hand but the throttle is def not working properly hard to troubleshoot the clutch if the throttle isn't working

fall_down_stand_up · #7 09-03-2009, 02:43 AM

Have you ajusted the screw that the cable goes into the carb up or down?The further the screw is ajusted out the faster the engine will rev....

camlifter · #8 09-03-2009, 07:16 AM

sounds like you have an air leak, probably where the carb clamps to the manifold. running the clip on the carb needle all the way on the bottom clip is making up for the air leak, air leaks will also make it idle fast.

longhorn6 · #9 09-03-2009, 10:25 AM

Camlifter: Where exactly r u talking about, u mean the clamp where the carburater meats the engine? Thats on there pretty darn tight. Clip? needle?

granburyman: I have that screw screwed in all the way, is that good?

i fixed what mb-monkey talked about so gonna go test run it soon, although i have a problem with the clutch, gonna make another post about some parts i need in order to jump start it !!

camlifter · #10 09-03-2009, 10:42 AM

Quote:

Originally Posted by longhorn6

Camlifter: Where exactly r u talking about, u mean the clamp where the carburater meats the engine? Thats on there pretty darn tight. Clip? needle?

granburyman: I have that screw screwed in all the way, is that good?

i fixed what mb-monkey talked about so gonna go test run it soon, although i have a problem with the clutch, gonna make another post about some parts i need in order to jump start it !!

where the carb clamps to the manifold there is a clamp, the carb has slots in it there, if the carb isn't pushed all the way onto the maniflod it will leak air there. clip, needle, is what i took as your word for throttle pin, what ever that is. the screw adjuster in the carb is for the idle, if you have it all the way in you have the idle set as high as it can go. back it out untill the idle is normal.