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Post by geh3333 on Mar 16, 2015 14:18:33 GMT -5
I agree , when u adjusted the carb it was very cold , and will def need to be adjusted again somewhere after 35degrees . I would not expect you would have to adjust for every 10 degrees, unless the last time you adjusted the air fuel it was just enough so it seemed to run right. In this case I guess it may be possible after a 10 degree increase you may need to do some more adjusting . I would say normally every 20 degrees may effect these small one cylinder engines . but TBa between 60 and  + I never noticed any real difference but once it drops to 50 I have to adjust , then 30degrees another adjustment and then 10 would be my next adjustment For example , I was riding in 20 degree weather most of the winter , but when it warmed to 40 I had to adjust the air fuel . mine I a 150 and I would imagine the smaller 50cc may need sooner adjustments. How much tweaking do you usually do when you tune for above 30 then for above 50 degrees? Just the mixture screw or do you find yourself changing things like the jet sizes and the needle position? Jerry is right , the air fuel is pretty much all u need to mess with , at times I need to slightly adjust the throttle screw also. |
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Post by lain on Mar 16, 2015 14:35:33 GMT -5
So, I got a creative idea. I decided to gut my performance coil and my stock coil and combine them. I took the top canister I think is the actual coil that you hook the wires into of both my coils. Then I cut the top of the coil wire on the performance wire (orange) by about 1/4 inch and screwed the stock top coil canister onto the performance wire. I then unscrewed the plug boot off the end of the performance wire and cleaned it out, cut a quarter inch off that end of the wire as well and screwed the boot back on and installed the coil. Now I am waiting for the battery to top off, it seems to have been low, I had it sitting in the cold the last few nights with the alarm on.
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Post by lain on Mar 16, 2015 15:10:18 GMT -5
Wow, it started the first try right away, and the idle was up to about 2500 after warming up until I turned the idle speed down to 1800 where it is idling nice and smooth. Now just to test it on the road...
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Post by lain on Mar 16, 2015 18:01:37 GMT -5
So, on the road it works wonderfully now, it feels like it accelerates more smoothly and now the top end does not feel like the power is being curved down or cutoff. The starting problem came back though, so I am guessing the coil wire may have been worn out and the coil is getting close to failing or the CDI I am using may be the culprit, or possibly it is the mix. However even while it is having issues starting it seems to be easier to start even with the issue. Pulling the throttle a tiny bit usually brings it to life.
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+ I never noticed any real difference but once it drops to 50 I have to adjust , then 30degrees another adjustment and then 10 would be my next adjustment