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Post by Bashan on Dec 11, 2014 18:52:20 GMT -6
After you've cranked it a bit, is the plug wet or dry?
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Post by tvnacman on Dec 11, 2014 18:54:09 GMT -6
is it me or is there no fuel in the filter or just not enough ? seems like it is being filled from underneath . Bypass the filter and see if it will start .
John
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Post by tvnacman on Dec 11, 2014 18:56:48 GMT -6
where is the hose for the vac port your spraying in ?
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Post by Bashan on Dec 11, 2014 18:57:26 GMT -6
I think he may have tried that John but I'm not sure. If not Dom, run a line from the tank to carb with no filter and see what happens.
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Post by tvnacman on Dec 11, 2014 18:59:36 GMT -6
look and listen at the video again you see the red straw and hear the squirt , but he never caps the vac port or connects the hose back to it .
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Post by dom on Dec 11, 2014 21:01:01 GMT -6
tvnacman youre right i didnt recap it that time, ive done the same test but with the hose put back after i squirted some in(didnt this time because I assumed since i had emptied the bowl and sprayed the carb spray that we didnt want fuel refilling) like i said i have tested it the other way too(and will recheck just to be sure),back again retried no luck, also tried with hose coming directly from petcock to carb(have to unbolt my tank and hold it up high if i want to gravity feed, my tank is mounted below my carb, (clear hoses(along with the testing i did before) makes it easy to see i have good fuel flow from petcock), more muffled pops(ill try again once its got a better charge but they werent very promising pfft's, plug smells like gas whenever i pull it, dont think its actually been WET at all but i dont really know what counts for wet and what doesnt when it comes to a plug
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Post by Bashan on Dec 11, 2014 21:38:02 GMT -6
So you have a vacuum fuel pump? Pull the line off of the carb and crank the motor, see what kind of flow you get out of the supply line.
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Post by tvnacman on Dec 12, 2014 6:16:20 GMT -6
is that a single or dual vac port manifold ? in your video it never filled up the fuel filter and or the line to the carb .
John
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Post by dom on Dec 12, 2014 9:55:18 GMT -6
tvnacman single port, for the video i didnt hook it back up because i thought we wanted to see its reaction on carb spray alone without gas flowing(but i did try it with it hooked back up, not on video, with SAME resulting weak noise.. only difference being that fuel flows through the line/filter when vac hose is attached of course ), also routed around the filter because it was suggested, but filter or no filter I get good fuel flow(with vac line attached) So you have a vacuum fuel pump? Pull the line off of the carb and crank the motor, see what kind of flow you get out of the supply line. yes ^, ive done that, i get good flow, gas squirts out as i crank it
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Post by cyborg on Dec 12, 2014 12:05:24 GMT -6
Getting spark getting fuel good compression ,,, timing is a mile away
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Post by dom on Dec 12, 2014 12:23:15 GMT -6
yesterday while rechecking valves for the hell of it i stripped a head bolt, will tap larger and replace soon, seemed to have a good hold despite noticeable spinning in place if i tried to tighten it so i left it for the time being, today i noticed some oil under the scoot dripping from near the exhaust, my first thought is that its a result of me screwing up the bolt but it doesnt look like its coming from there, nevertheless i plan on removing exhaust so i can get this engine shroud off and see the source of the leak, could any electrical components allow me to have spark but w/ incorrect timing?(and is a 50cc stock cdi the same as the 150s? was gunna part-swap one from my friends scoot if they are) also i just got a good look at the fuel filter i put in just the other day, holy hell should never have tried to save a trip to the parts store(or shouldve atleast stuck with brand name), got a no name filter off ebay and its literally falling apart, scoot barely pumped any gas thru this thing i have an actual fram one around here somewhere ill put on, throwing out the other ebay ones now, what a cruel joke disentegrating fuel filters are..
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Post by tvnacman on Dec 12, 2014 15:33:44 GMT -6
Dom , Please just listen I would like to share a thought here . You have a no start , you need vacuum to push fuel up to the carb . With your set up without vacuum to operate the fuel pump your dead/done . I suspect if you crank your engine fill the fuel filter and carb bowl . I bet it will start if you have spark . After you fill everything up and it still won't start then prime it . When I trouble shoot a problem I undo what I do so not to create more problems . To me parts are cheap enough that at the very least you should have primary spares . Coil , cdi , solenoid , spark plug and fuel filter .
I would like to see you do as you did in the video , but have the filter and bowl full of fuel first . So prime it put the hose back and crank it .
John
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Post by dom on Dec 12, 2014 20:47:59 GMT -6
Dom , Please just listen I would like to share a thought here . You have a no start , you need vacuum to push fuel up to the carb . With your set up without vacuum to operate the fuel pump your dead/done . I suspect if you crank your engine fill the fuel filter and carb bowl . I bet it will start if you have spark . After you fill everything up and it still won't start then prime it . When I trouble shoot a problem I undo what I do so not to create more problems . To me parts are cheap enough that at the very least you should have primary spares . Coil , cdi , solenoid , spark plug and fuel filter . I would like to see you do as you did in the video , but have the filter and bowl full of fuel first . So prime it put the hose back and crank it . John John as i tried to relay in the other two posts I ONLY had it unhooked because I was following someones suggestions to empty carb bowl, and spray carb spray into the throat, and I THOUGHT that we were trying to get it to kick over off of the carb spray alone- NEVERTHELESS, i have tried it with the hose attached(and keep it that way normally, i only took it off for that short video) it pumps fuel readily to the carb with that hose attached, no need to prime it(although i have, to be sure), its fuel-filled after only a few cranks even if i drain it completely through the bottom of the float bowl. Spare coil/cdi/fuel filters on the way, spare spark plug, spare solenoid, and spare RR in the parts bin now, need a spare belt as soon as the darn thing runs ill order one
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Post by cyborg on Dec 12, 2014 21:51:32 GMT -6
I'm calling cdi went wonky and is not firing on time or somehow someway the flywheel has moved and time has been lost,,, my .02c
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Post by dom on Dec 13, 2014 7:40:13 GMT -6
I'm calling cdi went wonky and is not firing on time or somehow someway the flywheel has moved and time has been lost,,, my .02c thanks, i thought so too just didnt know if this was possible(cdi), trying that next, didnt feel any flywheel play but i guess it doesnt hurt to pull it and check it if i can find my flywheel puller
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