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Post by jskyking on Jun 21, 2013 22:21:44 GMT -5
Rocketa MC-46-150: I just completed cleaning the carb and jets, engine idles good on the kickstand, but when I rapidly twist the throttle there is a significant hesitation before the engine catches up. Once engine catches up, then it is strong thru the remainder of the power band.
The fuel and vacuum lines are brand new. I plugged the vacuum line going to the charcoal ? cannister.
Any ideas are greatly appreciated.
thx
jt
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Post by alleyoop on Jun 21, 2013 22:29:27 GMT -5
When you cleaned the carb did you take out the FUEL RATIO MIXTURE screw? If you it needs to be re-adjusted.
Alleyoop
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Post by alleyoop on Jun 21, 2013 22:30:36 GMT -5
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Post by ej132 on Jun 22, 2013 8:37:56 GMT -5
Having the same problem, I'll report back if I fix it.
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Post by jskyking on Jun 22, 2013 11:56:35 GMT -5
Thanks for the tips. Yes, I did an initial adjustment on the F/A Mixture screw, but then I reset it with the requisite, full -in clockwise then 2.25 turns counter-clockwise. The instructional feedback regarding the fine-tuning should help get the carb dialed in.
Still curious on the vacuum line set-up from the canister to the carb. For the time being, I have the cannister vac line plugged with a golf tee.
jt
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Post by ej132 on Jun 22, 2013 12:30:58 GMT -5
Is the scoot all stock engine wise?
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Post by jskyking on Jun 22, 2013 18:00:08 GMT -5
The scooter is on the dual point kick-stand:
Ive got the Fuel/air mixture set per the instructional guidance. Now, no combination of F/A settings or Idle adjustments on the Carb will make the rear wheel stop spinning while the motor is running.
When I tap the rear brake, the wheel stops and the motor immediately dies. I can adjust the idle screw low enough to make the wheel stop turning, but the motor dies about 2 nanoseconds after the wheel stops.
Ive tried all combinations of fuel/air and idle screw adjustments and nothing is working. IT's like the engine isnt from the drive train when the scooter slows down- this was the original problem. However, in the earlier scenarios, I was able to hold the brake and keep the throttle cracked to keep the engine running while slowing to a stop.
Still puzzled. Thx for any advice.
jt
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Post by jerseyboy on Jun 22, 2013 19:55:05 GMT -5
[replyingto=jskyking]jskyking[/replyingto]Did you have the variator apart,,sounds like might have a problem there,,I remember first time I took one apart and put it back together my back tire was like direct drive with motor,,i had to take the variator back apart and make sure to put it back together right way.
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Post by alleyoop on Jun 22, 2013 20:08:09 GMT -5
Check your clutch, it may be engaged all the time the pads may not be retracting maybe broken springs or something is not allowing them to retract and disengage the bell. Also like Jersey said take the CVT cover off and just look at the BELT. The Belt on the VARIATOR should be down and the belt in the CLUTCH should be near the top of the CLUTCH pulley. If the belt in the VARIATOR is high then take your variator and check the rollers they may be out of position sitting sideways and holding the Variator out.
Alleyoop
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Post by jskyking on Jun 22, 2013 21:26:54 GMT -5
Thanks for the input. I havent had the variator apart. Tomorrow, I will remove the CVT cover and examine the inner workings of the belt, clutch, and the clutch pulley. Just a thought, the throttle cable adjustment bracket assembly, with multiple carb installs and removals the assemble may have been moved one way or the other on the threads ( 1 or 2 max) Could this be a contributing factor?
thanks again.
jt
ps. is there any pics of what the CVT, belt, variator should look like?
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Post by alleyoop on Jun 22, 2013 21:33:13 GMT -5
Yes the throttle cable could already be pulling on the throttle. Make sure the throttle cable at the GRIP HAS about 1/4 inch of PLAY BEFORE it actually pulls on the Throttle cable.
Give me a minute to get a pic of the CVT.
Alleyoop
This is better a VIDEO.
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Post by ej132 on Jun 22, 2013 21:44:49 GMT -5
Think of how a bicycle drive chain would look at the lowest possible gear(small in the front big in the back) that's how it should look.
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Post by jskyking on Jun 23, 2013 8:35:22 GMT -5
Alley Ooop,
Thx. I will check the throttle play for .25 and then move on to the CVT . Thanks for the video. Much appreciated.
jt
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Post by case on Jun 23, 2013 9:42:29 GMT -5
Are you testing the scoot with the airbox and filter attached? are they clean , really clean? Also, check the spade clip to your coil, the vibration can cause intermittent spark.
good luck!!!
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Post by jskyking on Jun 23, 2013 20:17:05 GMT -5
Testing is being done with all components in place. I the coil and air cleaner as well- good ideas. thx
jt
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..BAD TO THE BONE..
