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Post by sailracer on Jul 20, 2013 21:25:17 GMT -5
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Post by sailracer on Jul 20, 2013 20:43:02 GMT -5
don't see why not, and everything you need is there too  Even the studs and gasket |
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Post by sailracer on Jul 20, 2013 19:53:51 GMT -5
And if you get lucky, and just need to replace it, use a lockwasher and above all DO NOT OVERTIGHTEN!! You could snap it or even worse, strip it right out of the threads. That aluminum is soft. Just snug it up ;D If it leaks, tighten a little more
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Post by sailracer on Jul 20, 2013 19:40:45 GMT -5
[replyingto=alleyoop]alleyoop[/replyingto]That is a really bad practice. If a press isn't available, I would think he would at least use a brass hammer, or a block of wood  I've done that in the past, being in a hurry, and screwed things up like that too  |
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Post by sailracer on Jul 20, 2013 19:11:22 GMT -5
[replyingto=steelace]steelace[/replyingto]Hopefully. the stud fell out. In which case it would be very simple. get a set of exhaust studs, and a gasket and just replace them. However, I hate to be the bearer of bad news, but it looks like it snapped off, In which case it's not so easy. You need to remove the head and try to extract the stud with an easy out. If thats the case, youre better off getting a new head, as you will need new gaskets & studs. If you do buy a head, you need to get the studs and exhaust gasket seperate. I wish you the best of luck and it just fell out.
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Post by sailracer on Jul 20, 2013 15:43:38 GMT -5
heres the pic mine is a yy50qt30 looks the same, but nicer mirrors Attachments:
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Post by sailracer on Jul 20, 2013 15:40:44 GMT -5
I built a motor with a 50mm BBK, 47 mm head, A9 cam & 20mm carb.I opted to use the exhaust that came on the bike because it 's the 2 stroke type with the expansion chamber.(ill see if I can post a pic) What size jet should I start with? I put an  in and it's lousy performance. I also drilled more holes in the airbox for more airflow, I adjusted the fuel-air mix for max idle. If I can't improve this, I'm putting the original 50cc back in. It performed way better than the new 83cc  |
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Post by sailracer on Jul 20, 2013 15:31:45 GMT -5
No good, I just went on about a three mile drive & she sputtered out and died |
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Post by sailracer on Jul 20, 2013 14:47:42 GMT -5
Update: I got an orange cdi from the local shop (the same one I tried before, and it did,nt work) i figured cause i had the extra wire on it for the speed sensor. since disconnected) anyway, I asked for another& he had an old used one hanging around. Guess what? the used one works! It doesnt seem to be rev limited because it revs high. But it takes too long. I put the 20mm carb with an jet in, and drilled 6 3/8 " holes in the bottom of the airbox. still too slow to rev to speed. any ideas? I've already removed the 6 gram sliders, and put in the 5's |
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Post by sailracer on Jul 20, 2013 5:58:02 GMT -5
I wish it were that simple, but no. Wires, connectors and grounds all check out ok.
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Post by sailracer on Jul 19, 2013 22:24:12 GMT -5
fuse isgood. connections are good  |
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CDI fried?
by: sailracer - Jul 19, 2013 20:53:36 GMT -5
Post by sailracer on Jul 19, 2013 20:53:36 GMT -5
I put in an orange ( high output) coil and it was running fine. I shut it down to add some gear oil & suddenly, no more spark not even with the original coil. Anybody have a similar experience? I'm thinking the cdi is burnt.It was originally restricted by a speed sensor on the clutch bell, but I dsconnected that about 500 miles ago and it didnt seem to be rev limited so I used it with no problem until the upgrade. It was firing just fine, and now nothing
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Post by sailracer on Jul 19, 2013 17:22:59 GMT -5
I got the exhaust gasket and installed it, fired it up all good I had the orange coil hooked up, but not attached to the frame yet.I removed the stock coil, and bolted on the new one, Now no spark >:(no spark with the old one either. Checked all wires, look fine. Who has the diagram for the ac cdi? i need to check voltage on the terminals HELP!! |
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Post by sailracer on Jul 18, 2013 14:56:25 GMT -5
:(Have to wait another day for the test drive, Exhaust gasket no good,having one sent priority >:(All the money for these upgrades, and a lousy 2.99 gasket is holding me up! I had an extra, but can't find it |
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Post by sailracer on Jul 18, 2013 3:02:00 GMT -5
Got a small exhaust leak at the head. need to see why
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jet
in and it's lousy performance. I also drilled more holes in the airbox for more airflow, I adjusted the fuel-air mix for max idle. If I can't improve this, I'm putting the original 50cc back in. It performed way better than the new 83cc