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Post by tvnacman on Sept 23, 2015 10:43:18 GMT -5
its not at tdc in any of the pics. a gap that is too large will not open a valve. It will not damage the valve. If the valve does not open no compression or combustion.
The woodruff key is what holds the flywheel in place on the crankshaft, the flywheel has timing marks.
John
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Post by JoeyBee on Sept 23, 2015 11:10:37 GMT -5
Just another thought. Were you sure you reconnected the ground wire that connects to the valve cover. I'm just asking because that was a simply mistake I made after my last valve adjustment. My scoot wouldn't start so I thought it was an electrical problem. Went through troubleshooting for a week before I noticed the simple mistake.
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Post by dickyh on Sept 23, 2015 12:14:02 GMT -5
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Post by dickyh on Sept 23, 2015 12:16:12 GMT -5
its not at tdc in any of the pics. a gap that is too large will not open a valve. It will not damage the valve. If the valve does not open no compression or combustion. The woodruff key is what holds the flywheel in place on the crankshaft, the flywheel has timing marks. John I just took pics, it was not at TDC when I took them. I checked the woodruff key and was fine. |
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Post by dickyh on Sept 23, 2015 12:26:28 GMT -5
Yep, setting it at .045 is far too big of a gap. You likely damaged the cylinder. Just spend the $80, or so, and replace the cylinder and head. A lot of people in this thread missed that you initially set your gap WAY too big, at .05", instead of .005". I don't know exactly what was damaged, but you just need to replace the top end. New cylinder, and cylinder head, and you will be good to go. No need to try to find exactly what is messed up, and take a month to figure it out. Just replace it. Somebody teel me How from Experience one Damages a Cylinder by too big a Valve lash. Peeps sayin you've hurt something but can't tell ya What. Internt Bunk!! not going to hurt a darn thing in a gy-6 The Only thing that Will Happen with a Intake set at .045 is the Valve Never Lifted Enough to let a Charge in and it Wont Start. Period! a few got him going down the Wrong road now. ============================================================= Here's is the funny thing about what you said... right after i did this it never started better! It was only after riding it for about 10 miles that the problems began. Thankfully about a mile from home it started sputtering and wanted to die. Once I got it home and turned it off is when it wouldn't start. and this my post began. |
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Post by lain on Sept 23, 2015 12:32:15 GMT -5
So just to check, you have checked the new gaps both before and after tightening them right? It's not excessive anymore right? It's still not starting? What about with the kick starter?
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Post by onewheeldrive on Sept 23, 2015 12:47:12 GMT -5
Does your .045 inch feeler gauge read in millimeters, too? If so, what does it say in millimeters?
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Post by dickyh on Sept 23, 2015 13:26:56 GMT -5
So just to check, you have checked the new gaps both before and after tightening them right? It's not excessive anymore right? It's still not starting? What about with the kick starter? Never could get it to start with the new gaps. - no kick start as I have fuel injection |
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Post by lain on Sept 23, 2015 15:43:42 GMT -5
So just to check, you have checked the new gaps both before and after tightening them right? It's not excessive anymore right? It's still not starting? What about with the kick starter? Never could get it to start with the new gaps. - no kick start as I have fuel injection Do you have spark? Do you have compression? Are you sure fuel is reaching the engine? |
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Post by tvnacman on Sept 23, 2015 18:32:42 GMT -5
Never could get it to start with the new gaps. - no kick start as I have fuel injection Do you have spark? Do you have compression? Are you sure fuel is reaching the engine? I'm with lain on this one. Have you checked for spark? |
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Post by dickyh on Sept 23, 2015 18:35:43 GMT -5
Spark was the first thing i checked... good strong spark
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Post by cyborg on Sept 23, 2015 20:55:49 GMT -5
I'm with pistondude on this one all the way,,,there is no way no how you damaged anything by setting lash too large,,,he developes engine parts for a living for some of the most exotic race engines ,,,he has forgotten more than we all know about engines,,,,collectively,,,,,,,
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Post by cyborg on Sept 23, 2015 20:58:33 GMT -5
My last call,,,guess on this one is the cdi is intermittent and throwing time all over the place,,,,plus the fact you set your valve lash's so big you could have driven a semi thru them
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Post by dickyh on Sept 24, 2015 5:47:09 GMT -5
Thanks all for your input. I'll be putting new top end on this weekend and see if this solves the problem, although now, I guess from some posts from more experienced people I didn't have to. Live and learn I guess...
What baffles me is that until I set the valve lash wrong, the scoot was working perfectly. Only after I did this, did the problem begin so I could only come to the conclusion I damaged something inside. All the electrical is near new (3 mos. ago) CDI, Spark Plug etc. Put a new stator on about a month ago due to charging issues, but nothing else had changed.
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Post by lain on Sept 24, 2015 8:26:57 GMT -5
Don't kill yourself trying to figure out why it happened. Things just like to pop up after you solve them. That's why it says "One problem after another" under my avatar image, because I have been there so many times haha. Sometimes, well often in my experience, when one thing goes wrong everything wants to go wrong. Murphy's law.
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