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Post by devinchasteen15 on Jun 30, 2015 0:16:41 GMT -5
Might just put in a new 80cc bbk and head
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Post by devinchasteen15 on Jun 30, 2015 0:16:12 GMT -5
Nobody know what this sounds like? Still have no clue what to do to get it RUnning
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Post by devinchasteen15 on Jun 9, 2015 0:10:48 GMT -5
Scooter sudden loss of power:
Today I was riding my scooter and when I parked it I came back out side to ride it again and this is all that is happening. I really have no idea what is causeing this. Please help
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Post by devinchasteen15 on Apr 24, 2015 13:13:23 GMT -5
Try restricting your air intake while starting, if it helps, then you need a larger pilot jet. The pilot jet provides fuel throughout the throttle range, the main jet only when the butterfly is open, and vacuum is high (not during starting even if you turn the throttle). OK then I defiantly need one because sometimes I have to choke it like that for it to even start |
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Post by devinchasteen15 on Apr 24, 2015 12:13:49 GMT -5
The pilot jet will be the issue while starting, what size do you have in there now? Stock im not sure what size |
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Post by devinchasteen15 on Apr 24, 2015 10:45:18 GMT -5
Yeah I used  on my 100cc bbk before I upgraded the air intake. I was using a cone filter that only pulls in about 25% more than an air box. The uni foam filters draw in a lot more air though, I am using  now on my 100cc. I actually have an extra jet I never used if you need it, I can ship it to you if you pay the shipping. I have one. Thanks for offering tho. |
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Post by devinchasteen15 on Apr 24, 2015 10:16:31 GMT -5
96 May be too big. That size is normally used on a 100cc BBK, is usually enough for a 80cc BBK. Oh alright I'll change it when I get home |
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Post by devinchasteen15 on Apr 24, 2015 9:36:19 GMT -5
Stock CDI works better in the low end, if you are looking for a performance CDI for your BBK forget about the blue and orange CDIs, just throw them out a window they have nothing compared to a Casoli CDI. Get one, you'll see a big difference in performance and it'll start and idle better. It won't solve an issue, but it will improve performance by a bunch and some. OK I'll have to get one then |
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Post by devinchasteen15 on Apr 24, 2015 6:46:32 GMT -5
If it is turning over ok, it's not the starter motor necessarily. Did you up jet your carb? Sounds like it's starving for fuel. It almost starts because it almost has enough fuel, opening the throttle at low RPM opens the butterfly allowing more air in, and starving it. Put a 96 MJ in is that a good size or so I need bigger? Also after I charged the battery it started after a few seconds of cranking. It starts faster with the stock cdi Idk why. |
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Post by devinchasteen15 on Apr 23, 2015 15:10:29 GMT -5
OK thanks so much!!! I was thinking something horrible happened. I will try the bigger gaps when I get back home and charge my battery. What size wires you recommend? I am using 12 gauge for the wire to the solenoid from the battery, from the solenoid to the starter, and the starter to ground (frame) all without issue. Hopefully I can do this soon. Thanks lain!! |
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Post by devinchasteen15 on Apr 23, 2015 14:04:38 GMT -5
Yesterday I installed an 80cc bbk onto my scooter. After I was done it was a little hard to start with electric start but it did start and rode awesome. Rode it around for a lil bit varying throttle positions and letting it slow its self down then I parked it and this morning it wouldent start. It turns over faster with throttle all the way closed but if I open the throttle at all it turns over slower. Could I have just drained the battery and its to low to start it now? That's normal. When you upgrade the engine you should also upgrade the starter or make sure the one you have will have enough torque to push it over. I have a "100cc" BBK and had the same exact issue when I first installed. It turned out that my starter was already so used that it no longer had the power to push the new engine over, however still had the power to push a 50cc over easily. I replaced it with a stock starter and replaced all the starter wires and it turns over great now. Did you use bigger valve gaps than with the 50cc you had? Most 50cc gy6 engines run at both gapped at 0.003 or 0.004 or in0.003 and out0.004. With the engine upgrade you should be using slightly larger gaps, like both 0.004 or 0.005 or in0.004 and out 0.005, however results may vary and you may find better performance out of larger gaps, but do not go too large or too small or damage will occur. OK thanks so much!!! I was thinking something horrible happened. I will try the bigger gaps when I get back home and charge my battery. What size wires you recommend? |
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Post by devinchasteen15 on Apr 23, 2015 13:05:50 GMT -5
Yesterday I installed an 80cc bbk onto my scooter. After I was done it was a little hard to start with electric start but it did start and rode awesome. Rode it around for a lil bit varying throttle positions and letting it slow its self down then I parked it and this morning it wouldent start. It turns over faster with throttle all the way closed but if I open the throttle at all it turns over slower. Could I have just drained the battery and its to low to start it now?
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Post by devinchasteen15 on Apr 17, 2015 23:52:29 GMT -5
Will piston rings go bad from just turning the scooter over and not starting? Never been ran with the piston cylinder or rings.
if there still good I plan on putting the cylinder and piston into my newer actually running scoot. I had a tao tao atm50 that didn't run and it had a 72cc bbk when I got it and I tryed to get it running by rebuilding it with a new 72cc bbk and it didn't work just a lot of turning over and no start. So can I reuse it with the same rings? Any help will be greatly appreciated.
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Post by devinchasteen15 on Apr 16, 2015 11:00:40 GMT -5
OK so recently my belt broke on my scooter. Before it would go all the way up to 1200 rpm. Now after putting a gates power link belt on I can't get it past 7500 rpm and it goes very slow. I removed the variator and the clutch to put the new belt on. The new belt is alot thicker that the old belt. I'm really confused and pretty bummed if anybody. would help it would be greatly appreciated. You shouldn't be pushing it past 7500 anyways. What is happening is you are simply seeing the contrast between a brand new belt and a worn out belt. Worn out belts are thinner because the use of them grinds down the sides slowly, that's why drive belts have hardened walls. A thinner belt can climb higher and go lower in the variator and clutch, but will break as you already know. When you first get a new belt it needs to be broken in, give it a week and you should be speedin around again. Something that confuses me is how come it will rev past 7500 on the center stand? But while riding not past 7500 |
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Post by devinchasteen15 on Apr 16, 2015 10:18:48 GMT -5
OK so recently my belt broke on my scooter. Before it would go all the way up to 1200 rpm. Now after putting a gates power link belt on I can't get it past 7500 rpm and it goes very slow. I removed the variator and the clutch to put the new belt on. The new belt is alot thicker that the old belt. I'm really confused and pretty bummed if anybody. would help it would be greatly appreciated.
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on my 100cc bbk before I upgraded the air intake. I was using a cone filter that only pulls in about 25% more than an air box. The uni foam filters draw in a lot more air though, I am using 
now on my 100cc.