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Post by rexxk on Jun 7, 2014 16:00:08 GMT -5
im thinking tuning your on the wrong circuit. or the bike has an airleak, maybe from one of the hoses. if its not tight. or something itll be impossible to tune the idle mixture. first get the idle rpms down, with the idle rpm screw. the one that moves the thing that gets pulled back by the throttle cable. turn it off, until the 2 bars touch each other. then barely crack it open. set your mixture screw, then at around 2 turns out. then start it up.
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Post by bille on Jun 7, 2014 16:11:33 GMT -5
UNBELIEVEABLE, Ok screwing in the IDLE speed screw all that is doing is Opening up the BUTTERFLY and uncovering more of the FUEL OUTLETS and a little more air. So Try this get it to the point where it bogs like in the last part of your VIDEO idleing around 1600 or so. THEN TURN THE FUEL RATIO SCREW COUNTER CLOCKWISE 1 FULL TURN and then see if it bogs. If it gets better turn it 1/4 turn at a time. If the idle climbs lower the idle down to the 1600 range BEFORE the NEXT 1/4 turn UNTIL the IDLE does not climb. Alleyoop I tried, here is what happened: |
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Post by alleyoop on Jun 7, 2014 16:25:30 GMT -5
BUMMER that is weird as heck, So turning the fuel ratio screw counter clockwise kills it. So lets try CLOCKWISE leaning it out but LEANING it out just turn it 1/4 at a time ONCE you get it started and bogging again. What I do not like at all is the wheel is spinning pretty good even at 1600 rpms and when you put on the brakes I can hear the rpms drop. Which means the clutch is engaging at real low rpms which it SHOULD NOT. Due to it engaging to early is putting a load on the motor is why it needs to start at high rpms and as soon as you lower the rpms the motor has to much of a load on it and it dies.
I personnaly would take the clutch off and check out the springs on the clutch pads. Maybe even get the 1000 rated clutch springs and put them in. That would require about 1000 more rpms for them to be thrown out and grab the bell.
Alleyoop
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Post by rexxk on Jun 7, 2014 16:47:22 GMT -5
 see that? turn it down. turn the IDLE SCREW out, OK?!!!! OUTT!! idle isnt but maybe 1mm of space between the two things im trying to mark off in red there. that space shouldnt be but 1 mm apart. but it should be closed when you adjust the throttle cable. and get your 1/16 of an inch of slack. if you turn if out, the IDLE SCRE#W TURN IT OUT, when you do, if the 2 thigns dont go together, then theres a problem. if the throttle cables attached, THEN PULL YOUR THROTTLE back and see if theres any slack. iF NOT THEN AEDJUT THE THROTTLE CABLE. ..... if its not attached find the problem. OK OK OK OK OK THEN WE CAN GO TO step 2. turn the idle screw in just a bit. step 3. then you WANT TO COUNT the number of turns out your mixture screw is rigtht now in case i screw you up so you dont have to readjust. turn the mixture screw in, until it seats. counting th enumber of turns. remember the number of turns. readjust if it wont run again after this, but you NEED TO SET THIS RIGHT> then from, seated, turn the mixture screw, 2 - 2 1/2 turns out. then start it up. then after it warms up, adjust the mixture screw. at a high idle. adjust the idle rpm, with the idle screw. once its .. fixed, then lower back down your idle again, with the idle adjustment screw. people get the idle adjustment screw mixed up with a high idle mixture adjustment. and all that. the idle needs to be a slight high idle to adjust the mixture screw. you adjust mixture screw to get the highest idling. if the mixture screw gives you a highest idle, somewhere before around 1 1/2 turns out, to over 3 1/4 turns out, then adjust the pilot jet. |
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Post by rexxk on Jun 7, 2014 16:50:32 GMT -5
heres my thing, i dont think it needs that much air. the amount that flipper is pushed is around 1/8 throttle or something with the idle screw. there. so hes trying to mix the carb at 1/8 throttle. probably not getting the highest rpms. whenyou turned, in or out the mixture screw there, the rpms raised. well, i dont know. yoru idle should be set for idling rpms. and that shouldnt be no where that far out. it should be cracked. but im running a throttle slide 2 stroke. but i dont turn my screw, the slide is barely like paper thin or maybe 3 sheets of paer at the MOST cracked open. if i held the throttle at that open with nmy throttle cable, id be heading down the road. so your running 1800 rpms at that sort of idle adjustment. thats why your running so bad. thats whta i think
edit: whatever
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Post by bille on Jun 7, 2014 18:00:40 GMT -5
BUMMER that is weird as heck, So turning the fuel ratio screw counter clockwise kills it. So lets try CLOCKWISE leaning it out but LEANING it out just turn it 1/4 at a time ONCE you get it started and bogging again. What I do not like at all is the wheel is spinning pretty good even at 1600 rpms and when you put on the brakes I can hear the rpms drop. Which means the clutch is engaging at real low rpms which it SHOULD NOT. Due to it engaging to early is putting a load on the motor is why it needs to start at high rpms and as soon as you lower the rpms the motor has to much of a load on it and it dies. I personnaly would take the clutch off and check out the springs on the clutch pads. Maybe even get the 1000 rated clutch springs and put them in. That would require about 1000 more rpms for them to be thrown out and grab the bell. Alleyoop I took the clutch off but couldn't get inside of it. I need to get a clamp to hold down that spring, I'm just too tall to use my feet and hands at the same time. I am able to at least see the springs and I can see they are not broken. |
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Post by alleyoop on Jun 7, 2014 18:17:44 GMT -5
The way I take the BIG NUT OFF is I Put one KNEE on one edge of the CLUTCH and one hand opposite and LEAN FORWARD putting my weight on it TO COMPRESS the spring and then LOOSEN THE NUT. Same way to put it back on. Put a little towel or something under your knee so it doesn't hurt it.
Alleyoop
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Post by rexxk on Jun 7, 2014 18:33:52 GMT -5
yea right.
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Post by rexxk on Jun 7, 2014 18:52:21 GMT -5
you have a mixture problem. too much air makes it rev high too. how many turns out is that mixture screw set at?
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Post by rexxk on Jun 7, 2014 18:58:12 GMT -5
um im leaving. im not spending 2 days to tell someone to adjust their idle. and oh by the way alleyoop. your clutch nut has 0 torque on it. 0 ft/lbs. and so have fun with all that. they require 44 on my 50cc bike. finger tight and you can push it with your foot. reminds me of other advice ive seen given on here. and other places. hope that people arent total retards and blow their heads off.
you know, push it, do this. itll work. the spring will make it work it does everything. whatever. take your mechanic ploy apply it to everything and have fuckign fun would you or could you actually make a video full without cuts of yo udoing thatl then take a trip on your bike? before you write stuff like that? you dont even realize or you probably avctually do which in that case you should apologize, the THING THE CLUTCH SPRING PUSHES AGSINT ISNT EVEN CONNECTED TO .. THAT.
if you get it. i dont really care. i dont gotta sit here and explain why you take everything i say out of context then use every dirty trick to try to say im wrong, prove me wrong again.
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Post by alleyoop on Jun 7, 2014 19:15:58 GMT -5
 , Whats the point  Alleyoop |
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Post by rexxk on Jun 7, 2014 19:33:08 GMT -5
well from the video i seen he ? turned in the mixture screw? or out? and then it revved up. then died. i dont see a problem but he wont set the idle lower and start it up and tune it from there. not starting. is 1 thing. tuning is another. alleyoop. why dont you show a full fledged video of that. heres and ill show this service manual s1.postimg.org/qz1e8haqn/clutch_lock_nut_torque.png but dont go telling people to do that stuff when your not either doing it yourself or not proven it and even checked against a manual. just. sit there and do nothing sounds like a good idea. but say you dont know what your talking about. |
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Post by rexxk on Jun 7, 2014 19:36:46 GMT -5
ah you dont know what your talking about.
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Post by alleyoop on Jun 7, 2014 19:45:11 GMT -5
Rexxk,
It will NOT run at low IDLE that is the problem in a nut shell.
It will run idling around 1900 rpms BUT at that speed the REAR WHEEL is spinning real fast and if he he puts on the BRAKES the RPMS DROP and it dies. We have gone through adjusting the Fuel Ratio Mixture and IDLE SPEED and all that already. But IF YOU LOOK at the videos he puts up LOOK at the REAR WHEEL it is spinning really fast TO FAST which means the CLUTCH is engaging the BELL at to LOW OF RPMS.
Hope you understand what is happening.
Alleyoop
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Post by rexxk on Jun 7, 2014 19:47:54 GMT -5
hope you understande i alreday addressed that. but you come in and knock everyone off track and give him bad advice about hand tightenning a nut. whereever you got that idea. just since its not logical and goes against het manual. can you video yourself with no cuts. extra insure us. by stikcin gyour hand in front of it. and revving it on the stand at high rpms. for like 10 minutes.
tell us again how you put your bike together?
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..BAD TO THE BONE..