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Post by urbanmadness on Dec 23, 2013 11:09:42 GMT -5
In the video, just looking at the fan blades you can tell it's advancing...
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Post by tvnacman on Dec 23, 2013 11:25:27 GMT -5
In the video, just looking at the fan blades you can tell it's advancing... Thats hard to capture , I tried doing ot throught the hole on the fan . That never worked . Then I saw Brents video with the fan cover off , even that is still hard to see . If you put the video on full screen you can see the "F" mark on the flywheel . John |
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Post by phssthpok on Dec 23, 2013 11:29:31 GMT -5
...even that is still hard to see . If you put the video on full screen you can see the "F" mark on the flywheel . John I was thinking the same thing when I saw your video. First thing that came to mind was "I bet if he took a black sharpie to the flywheel right next to the 'F', the mark would jump right out and smack you in the face!" |
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Post by urbanmadness on Dec 23, 2013 11:41:52 GMT -5
You could always mark it with white out..... and do not just the F but also the line....
Incidently, which CDI was it, being tested? I might be interested for my 250, provided they make them.
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Post by tvnacman on Dec 23, 2013 11:54:01 GMT -5
You could always mark it with white out..... and do not just the F but also the line.... Incidently, which CDI was it, being tested? I might be interested for my 250, provided they make them. It is the variable timing cdi that was shot in the video it is ac fired I have one for dc cdi . John |
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Post by rockynv on Dec 24, 2013 4:51:53 GMT -5
Don't know about them being a hoax. Did improve cold weather starting, idle and throttle responce on my Lance when I put Scrappy's DC non-adjustable CDI and High Output Coil set in. Had to replace the variator and some bad bearings to really take advantage of it. It still was a stock 150cc GY6 afterwards but a little more of a solid runner. I would disagree if you have a coil problem you have a coil problem , if your having trouble getting it to start with normal cranking , then is air fuel mix . If you had bearing problems you had bearing problems . We are talking about bas timing on start up , then advance timing at rpms above idle . Clutch springs will have no effect on start up unless the clutch is dragging . If the engine starts and runs a performance coil will not yield improvement in start up you only need minimal spark to ignite the mix , when and where in time you ignite is where the gain is . John John - A better spark helps with shorter cranking in cold weather. What is normal cranking for many on a GY6 is to start by the third or forth compression stroke a better spark can get it kicking on the first or second instead. I mentioned all that was wrong impacting performance and did not say the coil/cdi combo fixed bad bearings nor did I say a word about the clutch or its springs however with the marginal power that a GY6 150 produces the improvement from a better cdi/coil set may not be very apparent if there are driveline problems with the bike such as variator or bearing issues. |
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Post by JR on Dec 24, 2013 14:52:23 GMT -5
Some of us are old enough to remember the days when we had a point system for ignition. Back then a dual point ignition was also marketed, I remember some of my old Hondas coming with dual points. The purpose was to extend the duration of the spark to make it burn better on each combustion. I think you might find some spark duration changes with performance ignitions, not sure about that though. It might even fire very rapid multiple sparks per burn. Again I don't know that for sure, coil capabilities would also limit what it can do.
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Post by rockynv on Dec 24, 2013 15:13:30 GMT -5
Some of us are old enough to remember the days when we had a point system for ignition. Back then a dual point ignition was also marketed, I remember some of my old Hondas coming with dual points. The purpose was to extend the duration of the spark to make it burn better on each combustion. I think you might find some spark duration changes with performance ignitions, not sure about that though. It might even fire very rapid multiple sparks per burn. Again I don't know that for sure, coil capabilities would also limit what it can do. I also remember setting up 24 volt systems to be used when starting an engine with points in cold weather that would revert to 12 volts once the engine was running. |
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Post by tvnacman on Dec 24, 2013 19:41:26 GMT -5
WOW!!!! I was looking at this with horse blinders , The target was hard starting and kick back do to high compression (BBK) . Not so much hard starting do to cold weather . Now with the horse blinders off I would have to compare cold start ups with stock CDI . I have had people call me with hard start ups below 40 degrees . I found when I put my pod filter on and performance muffler . Below 45 degrees I would have to reach under and put a paper cup over the pod filter to get it to start . I changed my pilot jet to 40 for the winter and it starts on the second or third try . I have been telling people to put in a larger pilot jet for hard cold starts .
OK let me have it , I think the larger pilot jet is working for me how do you guys feel ?
John
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Post by millsc on Dec 24, 2013 22:50:24 GMT -5
The larger pilot jet does help in cold starts I also switched to a 40 since its cold
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Post by tomcat on Dec 25, 2013 1:20:54 GMT -5
I will have to try that!
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