Clinician
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Post by jasoninnaples on Nov 8, 2013 22:04:04 GMT -6
Never had the chance, started it and let it warm up, shut it off and an hour later went out to attempt your suggestion and wouldn't start, No spark. Gonna try and chase down the problem for a bit here.
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 8, 2013 14:10:21 GMT -6
Short answer is that it won't run long enough to figure out. Currently I have no spark so I will have to figure that out first. Working 14 hours shifts the next few days. Stay tuned and thanks for the insight, it is a huge help.
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 6, 2013 17:13:12 GMT -6
What do you think will be the biggest difference?
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 6, 2013 16:24:33 GMT -6
Also I just put the 7g sliders from Dr. Pulley in but as per my other post having trouble with the airflow /carb. I will let you know what I think of the change from 4G rollers
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 6, 2013 16:20:56 GMT -6
Thanks Alleyoop, as it is now, when the thing is running I can actually accelerate all the way up the hill to a top speed of about 42, the hill is about. 0.7 miles and I live on the incline.
Your explanation of the springs is the best thing I have heard. I have heard that an NCY HiT Clutch is bar none the best thing out there for grip and has 2 separate settings for spring engagement. Claims that the guy got his front wheel off the ground with a 50cc. That sounds suspect but the website is interesting read.
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 6, 2013 15:58:20 GMT -6
Thanks Alleyoop and others. I am regretfull to report that I rebuilt the motor and went through the entire top end with a diligence. All things are within spec. I'm baffled. It now starts with the kick-start much better than with the electronic one and I can tell it has somewhat better compression. Now, after adding the length of pipe to the air filter, it idles great but dies with any movement of the throttle. I'm beginning to think that w
Either the big valve head and /or the exhaust is just too much air being moved. Going to try to restrict it some more now. Also the exhaust came with a screw in restrictor on the end of the tail pipe that came out along the way somewhere, maybe I should try to restrict that as well? Maybe it needs a bigger carb to handle more fuel? Going to tape off part of the air pipe into the carb and see, I may oil the filter first also. It ran the same with the vacuum port on the intake manifold open as it did closed, I'm hoping to find the problem here shortly.
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 4, 2013 11:09:00 GMT -6
Thanks to the both of you. Last night I was wondering about the resistance /back pressure things. I saved a length of tubing from the old airbox with a nice bend in it for just this reason. I will be rebuilding the top end today mainly because I have 4 days off and I am bored and also because I just received some HOCA rings and the one's from the bbk are junk. I will try an 85 jet in the carb but I'm leaning towards the pressure idea being a good fix. That and most of the bogging down problem I have had previously have been all idle jet in nature. What size idle were you running with the 85?
As for the exhaust, I think that just because of the angles on the header should be able to create enough back pressure. We'll see how things work out here later today. I ve been rebuilding this thing since about 1500 miles and it's down more than it's running. Thought about replacing the chain and guides for the timing /cam. Any suggestions on how to get that done without splitting the whole case?
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 3, 2013 23:48:44 GMT -6
I'm not entirely sure if I need the whole clutch as I haven't had the old one off all the way. I'm sure that before I took this bike apart a hundred times and realized how it works, I was idling way too high where the wheel would be spinning if it were on the stand. I'm about 275 and live at the bottom of a long steep Hill. Any suggestions as to the color of choice.?
That's IF I can get this thing to even run well enough for long enough to even worry about the clutch. I just posted my latest quandary to the troubleshooting section. Big surprise, bbk problems.
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 3, 2013 23:21:24 GMT -6
50mm bbk with the big valve cylinder head, racing camshaft, racing cdi a performance glass pack exhaust with a 19mm Keihin CVK Carb with UNI air filter directly attached to the carb. Tried everything from a 100 to 85 main with a 30-45 main. Still running like crap.
In the meantime I think I have gotten 3 bad petcock in a row in trying so many carb adjustments I developed a new problem, the bike keeps cutting out at most throttle positions, acts like a float problem but it is happening as low as 1/3 throttle. Can't figure it out. Stock cdi didn't help . Bypassed petcock and ran gas directly to carb with a 2 way off switch then plugged vacuum port on intake manifold . Ready to park the thing downrange and blow it up just to feel vindicated. Please help
"Chinese scooter nightmares, I've never had so much fun with frustration."
"Chinese scooter nightmares, I've never had so much fun with frustration."
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Clinician
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Post by jasoninnaples on Nov 3, 2013 22:03:15 GMT -6
"Chinese scooter nightmares, I've never had so much fun with frustration."
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