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Post by geh3333 on Jun 5, 2015 21:22:01 GMT -5
The 669 is the right size .
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Post by geh3333 on Jun 5, 2015 21:20:17 GMT -5
Oh sorry, I don't know why I said it was a 2 stroke. Its a 4 stroke Ok ,lol . I was a little confused |
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Post by geh3333 on Jun 5, 2015 21:13:54 GMT -5
Many of the 2 stroke 50cc scoots run a 788mm. Is it a jog type engine ? What's the model number ? You said its a 1p39qmb taotao , but a 2 stroke ? Hmmm, I see many 788 size belts for 2 strokes but I'm not 100% certain. |
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Post by geh3333 on Jun 5, 2015 21:05:53 GMT -5
Many of the 2 stroke 50cc scoots run a 788mm. Is it a jog type engine ? What's the model number ?
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Post by geh3333 on Jun 5, 2015 21:03:56 GMT -5
That's a taotao 2 stroke ?
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Post by geh3333 on Jun 5, 2015 20:53:43 GMT -5
Actually , if the clutch pulleybis stuck completely closed , the belt would be pretty hard to install. But if you were able to install it , the belt would be very tight.
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Post by geh3333 on Jun 5, 2015 20:43:10 GMT -5
Does your clutch spin freely on the shaft , with not belt on ? That and a belt that is too small would cause the tension needed to keep the scoot from turning over and snapping the belts. The tranny bearing don't come into play yet. The more I think about it. The clutch pulley being stuck closed should not cause the belt to have too much tension at idle.
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Post by geh3333 on Jun 5, 2015 20:05:36 GMT -5
Ok, I switched to the other performance cdi that I know works, but it still wouldn't light. But get this... the last time I was able to get it to run, I shredded a drive belt. And basically it hasn't ran since I replaced the belt. Well just now I removed the belt in desperation...and it fired right up! So now I'm at a loss as to why it won't start with the belt on You have a cvt issue . the CVT is being held back from a possibly bad bearing issue. Have you checked the gear oil recently ? This is the second belt to break in not many miles at all. If your belt is snapping , you have a CVT issue. What's happening ,is with the stock bore , its much easier to turn over , even with the CVT issue. With the bbk , and the CVT issue it is much harder to turn over. This explains the black plug. The plug is igniting, but the combustion is not powerful enough to kick the engine over. Also did you clean out the first broken belt ? Many times pieces of the belt will become jammed in certain places causing CVT issues. I would do a complete clutch tear down. And clean it out . also decrease the clutch bearings and the inner clutch sheave where the clutch slides open. Also buy a gates Kevlar belt. |
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Post by geh3333 on Jun 5, 2015 20:01:41 GMT -5
Ok, I switched to the other performance cdi that I know works, but it still wouldn't light. But get this... the last time I was able to get it to run, I shredded a drive belt. And basically it hasn't ran since I replaced the belt. Well just now I removed the belt in desperation...and it fired right up! So now I'm at a loss as to why it won't start with the belt on You have a cvt issue . the CVT is being held back from a possibly bad bearing issue. Have you checked the gear oil recently ? This is the second belt to break in not many miles at all. If your belt is snapping , you have a CVT issue. What's happening ,is with the stock bore , its much easier to turn over , even with the CVT issue. With the bbk , and the CVT issue it is much harder to turn over. This explains the black plug. The plug is igniting, but the combustion is not powerful enough to kick the engine over. |
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Post by geh3333 on Jun 5, 2015 19:40:02 GMT -5
Thanks for the ideas, Ricardo I've moved the throttle to every position, but it just doesn't like to light. And Chromestar,lol on the take up knitting part, I think you're right! But it's a disease now that I can't cure until I get this stupid hunk of chinese crap to start on a regular basis. I just finished adjusting the valves to a "loose" 0.006" and took apart the carb again and cleaned it....still no start and yes I do have a high torque starter. I removed the intake and put some lube on the o-rings to see if it was sealing. It appears to be. There's only 1 scooter shop in my area and he is always busy, and never open when I'm off work for some reason. Is there anything I'm not thinking of? Any obscure reasons that anyone has seen that might help? Can u post a video of you trying to start it ? |
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Post by geh3333 on Jun 5, 2015 18:36:22 GMT -5
I have seen the engine ground under a valve cover bolt, I don't care for that spot. I prefer on the fan cover bolt or on the front of the cvt bolt cover towards the front. the grounds come from the battery negative terminal with a heavy wire then bolts to the frame with a few wires at that point all of the connections from the battery on need to be checked cleaned the crimps and all. I bet it smoked when you were using the electric starter. John Either way you are grounding mainly through the threads. The CVT cover is painted, yes you can scrap the paint off, but either way you are fighting a gasket and mainly just grounding through the bolt threads. And it all is connected to the engine case. The plug is also grounded through the head. I really don't see any reason not to use the valve cover bolt. I know we all have our preferences , but in this case , I just don't see the point of using a different bolt. We also need to remember , when using the valve cover bolt , its not just grounding from one bolt . all 4 bolts are connected to the head through the threads and the valve cover usually does make metal on metal contact, unlike the CVT cover or the side cover of the engine , which both have full gaskets between them and the engine case. The valve cover would be the first and best choice. As long as it has the small rubber gasket. |
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Post by geh3333 on Jun 5, 2015 18:29:13 GMT -5
I usually check the weather before I go riding , but that doesn't always work out , lol. I do understand some only have a scoot for transportation , and there is no way around missing the weather.
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Post by geh3333 on Jun 5, 2015 18:23:32 GMT -5
The gaskets on the valve cover really don't make a difference with the ground , since the bolt is threaded into the head. Yeah i know, seems to be a bit of confusion from some others though...thanks... i will get the scooter tore into soonish, need to get my new hi compression 155 into the other 21b, this one will have to wait til after rotation at the hospital is over. |
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Post by geh3333 on Jun 5, 2015 18:00:12 GMT -5
Just a model posing for pics, she doesn't even have her own show because when she is shooting a gun it doesn't look authentic, so they have to take still shots. She shoots like Obama " just for show " she is a Hollywood liberal , she takes pics with guns , but she is for gun restrictions.
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Post by geh3333 on Jun 5, 2015 17:53:21 GMT -5
But even if the elements didn't play havoc with the machine ... WHO IN THEIR RIGHT MIND WOULD INTENTIONALLY GO OUT ON A 2-WHEELER KNOWING IT'S GOING TO RAIN  ? That is just crazy. Sure - bring rain gear in case .... But there is nothing more miserable than riding at 50mph, water slogged, cold, fingers numb and slippery, knowing the cars can't see past their wipers, hitting puddles, and then there are the water covered potholes in Brazil that Ricardo had a video of ............. NO THANK YOU Even a bus would be better.  I agree 100% , and dirty water is terrible for bearings. And considering the wheel bearings are very easy to become water soaked , its not a good idea. I've been caught in some heavy rain before , and it is not at all a happy time. |
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