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Post by dragono on Jul 11, 2014 11:56:49 GMT -5
I took the carb off everything looked fine. Put it back toether and back on and she rev'ed up fine. Took her around the block just fine. Got back and put plastics back on and was going to go fill her up and as soon as i left the drive way same issue. My gave it WOT and she wasnt havin it. Did a quick plug chop and it was almost perfect (brown color). Im going to repeat what I did earlier and see what happens. The new carb I got is almost exactly the same. The pilot jet just isnt recessed as up into the carb as the old one. The main jet seems to be the exact same one. And it looks the exact same. I dont get it guys..... Will report back soon.
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Post by dragono on Jul 10, 2014 20:14:02 GMT -5
Well Let me clarify. The pet cock "dribbles" when its hanging below the height of the tank (with the engine off) . However I still get decent flow when the I apply vacuum to the other line that goes to it. I had ordered another petcock for it anyways but getting the old one off the tank is proving to be a hard time (its an Eton Beamer 06) And i'd rather not have to buy a new tank if I don't have to. However to make sure its not a problem Im going to take an old tank from out back and attach the new petcock and see if anything changes. As of now i'm not seeing any gas leakage. However if I choke it manually I do seem to get better results maybe because the vacuum is a bit better? I dunno 2T's are a slightly different game to me. Maybe my reed valves are going? What would be signs of that?
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Post by dragono on Jul 10, 2014 17:51:41 GMT -5
Now I am I seasoned 4 stroke guy. However im relatively new to 2 strokes. I bought this one and here are the issues: Tire is a bit hard to turn, harder than usual when on a centerstand (I only mention this is the more info the better) However my main issue is that it runs and starts up and will idle perfectly fine, I recently purchased A new carb for it since the old's gasket was chewed up somehow.
I can get it to idle and even got it to throttle all the way up one time, took her for a ride around block then and only made it half way. I would give her gas I could feel her giving out so I would back it back just to see if she'll make it home then a second later I have to repeat the process all the way until shes dead.
If It makes a difference my petcock seems to be going bad and is on permanent "dribble mode" . My gut tells me its a simple fuel flow issue but with a brand new carb I shouldnt have this issue.
Any ideaS?
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Post by dragono on Jul 2, 2014 22:41:21 GMT -5
So you've got spark. That's good. If you don't have any starter fluid I sometimes use the a bit of gas in a spray bottle although it doesn't seem as effective sometimes as starter fluid.
Your valves open and close letting either fresh air in or exhaust out at certain times during the stroke. (its a 4 stroke bike correct? I assume so as most are these days) I'll spare you the classroom part , Follow this link Its for a 50cc but the steps are the same except your clearances may be a bit larger,
However, I would get some starter fluid from an auto parts store and take the airbox off of the carb and try to spray fluid directly into the back of the carb. Sometimes these things need a kick in the butt to get started after messing with them since they are so sensitive. If that doesnt work adjust valves like in the video. If THAT doesnt work, time to get out the compression gauge and see what compression you're getting.
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Post by dragono on Jul 2, 2014 20:53:35 GMT -5
HAHA I didn't even see the fact that he had swapped hoses great catch! I got a great laugh out of that. Still no start though, hmm did you check spark? Problems usually don't usually all come at once but you never know. Also did you try to just spray starter fluid directly into the back of the carb or the directly into the intake? Adjusting valves is always good thing to try as Alleyoop said. Also your welcome. I started using forums to diagnose scooter problems about 2 years ago. These guys have helped me a ton. So its time I helped others.
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Post by dragono on Jul 2, 2014 12:18:25 GMT -5
GOOD NEWS. This isnt a huge issue. Either your fuel pump doesn't work any more. (cheap to replace) The vacuum line that creates the suction that actuates the pump is old and crack thus no longer creating a vacuum. (even cheaper to replace) Or your float bowl isn't going down all the way. (or float needle is stuck up) To test your fuel pump (looks like this www.ebay.com/itm/like/270996666513?lpid=82 ) (or this www.ebay.com/itm/like/161268311353?lpid=82 ) take fuel line off of carb. Also take vacuum line off of intake (this thing www.scooterparts4less.com/Moped_Web/GY6_150cc_Manifold.jpg ) If yours has two lines coming off intake its usually the one on the left. Take that line and suck on it with your mouth. If fuel comes out the hose that goes into your carb then your pump is good. If not then you found your problem. Don't worry fuel wont get in your mouth. Atleast its never happened to me. Replacing the vacuum line is easy. And just look up a youtube vid of how to replace float bowl if thats the issue.
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Post by dragono on Jul 2, 2014 10:07:45 GMT -5
FOUND THE VIN! It was litterally in the crack of the scooter. I just happen to stumble upon it. It was under the footboard and slightly up the frame. NONE of the usual spots. I had to unbolt quite a few things to get a full view of it.
Now on to my smoking.....any suggestions?
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Post by dragono on Jul 2, 2014 7:49:21 GMT -5
No joy. I look in all three places. The first is where it usually is but it has nothing there. The second there isnt anything attached there at all. And the third has the flimsy plate and has a small place exactly where number should go however there is no number. Theres also another flimsy plate on the plastics directly behind where you calf muscles should go. They both have Keeway and Hurricane and look official giving my EPA and noise standards but no VIN. Could I somehow get a Vin engraved? Or get my money back?
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Post by dragono on Jul 2, 2014 0:05:54 GMT -5
May have flooded the engine a bit. Try taking carb off and trying to start it for a few seconds to remove excess fuel that may be sitting in there. (I did that today with my 2 stroke) Also try spraying starter fluid directly into intake after running it to make sure its not flooded. If she starts up for a second then you have fuel flow issue. If not then issues may be slightly bigger, I assume compression is good but never hurts to check. Maybe weak spark? Never hurts to check those two things, and they take like 5 minutes total to do. Good luck let us know.
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Post by dragono on Jul 1, 2014 23:58:14 GMT -5
I hey guys. I have a 2stroke keeway hurricane that i just purchased from a police auction, It runs fine however it leaves a cloud of smoke behind it. I did some research and found that synthetic is better because its smokeless. So i grabbed a bottle of that and dumped the regular 2 cycle oil. (safely!) I realize that there is still regular 2 cycle oil in the line that or went from fuel pump to carb. How long will it take for that regular oil to be used up that is in the lines? Also I have noticed that if I take silencer off the end of the exhaust It tends to smoke less could my silencer be carbon deposit city?
Also I need to get this thing registered because the great state of VA is anal about these things now, however the police nor I could find the vin in the usual place between your legs or behind the place where your shins are. However, I found something resembling a vin number on the engine at the very back nearest where you adjust back breaks. But it only has 16 characters and I know vins usually have 17. (it also had star symbols in 2 places half way into the vin and again at the end) And yes I went back to recheck and yes there are 16 characters. Any help Riders?
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Post by dragono on Jun 8, 2014 20:21:11 GMT -5
I decided to buy a BBK some 7.5gram roller weights a set of jets and maybe a belt. I think the one on there is a bit too worn. However the belt that comes with the scooter is almost is expensive as the bbk (only 50 bucks) but still, $50 for a belt? Is there anyway I can use a size very similar to it? The current belt is a 748-18-28
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Post by dragono on Jun 8, 2014 11:21:31 GMT -5
Hey guys I got a Kymco Agility 50 that now has low compression so I think its time to do a rebuild. And hey why not do a 80cc BBK since i'm buying all new parts in any case. My questions are not how to install a bbk because I have done it before. When I did one on another bike I noticed immediate acceleration difference, but top end was still circa 30mph. This was with everything else stock except an upjet and the top end rebuild. My question is, if I want this thing to do 40mph and I put in an 80cc bbk what other mods do I need to do to get it to that point. (gearing ratio is out of the question, i refuse to ever open that thing again) Like should I get a performace pipe and a free flow filter? Or just drill holes into my airbox? Or just drill holes into exhaust? Ofcourse slightly heavier roller weights/sliders I've been trying to find the right thread because I know someone has asked this question already I just cant find it. Basically my bottom line is , what im your opinion will give me the most bang for my buck in other mods to compliment the 8cc bbk.
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Post by dragono on Apr 5, 2014 16:33:47 GMT -5
FIXED: The coil was sparking when it wasnt grounded. Took me all day to make the connection. Must have been when i tried it in the kymco scooter I had. Anyway swapped out the coil and the cdi and she works like a charm now.
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Post by dragono on Apr 5, 2014 8:36:16 GMT -5
UPDATE: So it turns out that my ignition coil is giving me a nice blue spark with spark plug into of engine on frame and nothing when I put it inside the engine. I think i verified this by the shock test. I held it outside next to ground and saw the spark felt the shock. Put plug back into engine with ignition coil attached and no shock. (ignition coil isnt completely incased in plastic so i can still touch it when its in the engine) Oh yea and i tried another coil and the same thing happened.
Nevermind: It sends sparks to ground which is why it doesnt shock you. Im stuck back at square one.
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Post by dragono on Apr 4, 2014 23:07:02 GMT -5
I think your second reply was meant for another dawg. However If i remove the carb and spray directly down into the intake I get no reaction. Usually when I have done this with other scooters anything with this kinda of compression will sputter right up and die after a few seconds. This one isnt giving me anything.
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