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Post by scripting25 on Aug 4, 2016 8:37:03 GMT -5
Hey all  So....last update probably forever  We did a compression check on the motor which turned in great results. We then did a air leak test which told us there might be a stuck or bent valve. That was probably the issue all along, a stuck or bent....somehow a bad valve. I took the top end apart and took it to my friends shop. He was supposed to clean it up for me and that's been 3 month now lol. It may or may not make it back together again. In the meantime.....I took my wife with me to the motorcycle shop to pick up some dirt bike supplies. She window shopped and sat on a Yamaha vstar 250cc and instantly fell in love with it. Mind you, she got us into scootering since other motorcycles were to big and heavy for her. We've been scootering around town for the past 5 years. So now she feels she's ready to upgrade. We searched craigslist and found a '13 mint condition vstar 250cc and picked it up for her. She LOVES it! I even put a smaller rear sprocket on the bike which helped to stretch out the gears a little bit and gave her another 10-20 mph top speed which we needed for some of the bigger roads. She allowed me to get a motorcycle and after some shopping and cragslist searching, I got myself an '07 Suzuki Boulevard M50 800cc and love it as well. Now we have a bigger riding range. We're looking forward to many riding miles. We're also keeping her "mooter" in good riding shape until it dies. We'll probably let "sctdwg" die a happy death after all.   |
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Post by scripting25 on Apr 3, 2016 20:30:32 GMT -5
I'm adding a pic with a wider shot. The air filter casing is what the hose connects to and I'm wondering what is in that area that I've circled in red. That's where the hose connects and that's a 1 piece unit so I can't see what's in there. I'm wondering if that area could be blocked with that goo and perhaps hinders the motor from running. Does anyone know if that might be the case? I talked to other friends and they think the yellow goo might be broken down Ethanol, maybe not much to worry about and probably isn't the real issue unless I have bad gas running in there somewhere but I've emptied it a dozen times testing the petcock and fuel filter and I've very recently added new gas for testing. I have no idea what pulse coils are oh and I just saw the video you added tortoise. Very cool, Thanks, I'll look into it soon as I can. Not sure if my ride is AC or DC either. Not 2 savvy is this area. It's a generic 150cc scoot if that helps lol I'm also kinda ready to give in and admit it's a cheap knock off that's kicked butt for 5 years and maybe it's time for it to die  I dunno. If I do give in, I'll need a place to shop for knock off's. We got ours from scooter depot a few years ago but seems they're out of business and have a lot of bad reviews lol Thanks again! O yeah...here's the pic  |
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Post by scripting25 on Apr 2, 2016 11:30:47 GMT -5
Hey everyone  I is back after the winter break here in VA. The weather is starting to warm up, I wanna ride my scooter around town and.....still can't  I'm back to trying to figure it out. My test so far this early spring leaves me right where we left off. Scoot runs great for a bit, I get all excited to ride and then....it chokes out to a death. I was gonna take it by a scooter shop today but the guy wasn't there. I saw my local neighborhood repair guy out in the yard on the way home so I stopped by for words of wisdom. Upon looking over the scoot, he noticed the drain tube has thick yellow slime in it as opposed to ......I dunno, dirty liquid...I really don't know what the hose even does. So I ask you experts....based upon this pic I'll provide, does anyone have an idea as to why the hose has thick, almost mustard like yellow goo in it? It's not 100% filled with the goo, just a coating more or less. I took all that stuff apart and I don't see that goo anywhere else though. Only in the tube. Maybe the canister it's connected to isn't working....I dunno. Thanks!  |
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Post by scripting25 on Oct 23, 2015 8:10:00 GMT -5
Thank you for chiming in urbanmadness but........... I've borrowed the coil and CDI off my wife's scooter (which runs great, knock on wood, and it better once I put it back together or it's my  ), anywho, borrowing her equipment did not help my ride. Still same issue. I changed the drive belt last summer after it blew up and shredded all over the place  Also changed it on my wife's scooter to keep her's from doing the same thing. Jugdish, I can't see our issue being related to a jet. That would help with rich/lean issues. For example, I might be able to change the main jet to have mine run a little more lean, this way I wouldn't have to worry about getting a new carb only so I could move the needle clip around. To everyone else, I changed out the vacuum petcock with a new 1 yesterday and tested.......same issue. I think I'll check the valves again to make sure they're ok. I did adjust them after this incident occurred but maybe I didn't do it correct enough. Other then that, I might be at a loss. Thinking about taking it to the local scooter shop but I'm scared they'll put some bubble gum on it and charge me an arm and leg  |
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Post by scripting25 on Oct 21, 2015 20:55:16 GMT -5
Yes, I do have vacuum petcock.
I ordered a new 1 but the gasket where the nut threads on wasn't 100% correct and it was leaking so I put the original back on.
I'll take the petcock with me and check on a gasket designed for gas flow and I'll switch it out and test.
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Post by scripting25 on Oct 21, 2015 18:37:55 GMT -5
I did not. Mostly because it and the motor are hot and it's hard to handle.
Plus. ..I wouldn't think it would be a non spark issue because it will attempt to start and mostly does start...BUT soon as I get on the throttle. ..it'll die.
Course I could be wrong and could use gloves to check it next time.
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Post by scripting25 on Oct 21, 2015 16:41:03 GMT -5
Air filter looks great, like brand new. New spark plug installed for testing today. Scooter ran great around the hood. Soon as I hit the open road for testing, same issue, sputtering out. I let it sit for 30 seconds or so and it would get me another 100 yards or so before it sputtered to a stop again. I managed to do that all the way home. I will note, towards the end I Sprayed carb cleaner on the intake side of the carb. It did seem to run a better for a bit but still went back to sputtering to a stop. Here's a pic of the new spark plug after this test session:  |
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Post by scripting25 on Oct 19, 2015 8:16:22 GMT -5
I'll get a new spark plug and test soon. the current plug might look bad since the scooter has been acting up for a while, and die'ing and sputtering out hasn't helped it's look too I'm sure.
I'll also check around to see if I can an adjustable needle diaphragm that can drop in.
I'll look at getting an adjustable carb if not.
That's fine and dandy but I don't see how that will help resolve the issue it's having unless by it running to rich cause's the motor to stop running after it's warmed up.
Or unless a weak spark cause's it to not work. That's been 1 of my questions all along, does a spark having anything to do with the motor after it's been started? could the motor be looking for a stronger spark as it warms up and a weak spark can't supply that extra spark so the motor dies out.....kinda thing?
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Post by scripting25 on Oct 18, 2015 9:06:15 GMT -5
Ok after watching videos, I know where the Philips screw should be but it looks like mine isn't adjustable Perhaps I can order a adjustable diaphragm? Or is there a way to get mine out without killing it? That center piece doesn't want to come out. I tried unscrewing and pulling on it. It looks like a cover but seems to be all 1 piece.  |
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Post by scripting25 on Oct 17, 2015 9:06:03 GMT -5
Here's a pic of the current spark plug. I can get a new spark later and test.  The issue I'm having can be triggered by simply riding around a little bit, not having to be WOT. I actually made it mad the other day by releasing the carb overflow hose. I plugged the hose back up and the scoot was not wanting to run right. Is this where I would check the clip?  If so, how do I get the needle out of the harness? I tried to twist and pull but doesn't want to come out and I don't want to break it. |
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Post by scripting25 on Oct 16, 2015 15:43:06 GMT -5
Alright peeps, today's update is as follows:
Switching out the automatic choke thing didn't make a difference.
No fuel comes out the Y connector hose line, I checked it by unplugging from the manifold.
Volt meter reads a good 12V+ from positive terminal to valve cover head.
With motor off. Reads a touch better with motor running.
It reads nothing from negative terminal to valve cover head with motor off.
It reads -1 with motor turned on from negative terminal to valve cover head.
Is that normal?
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Post by scripting25 on Oct 16, 2015 10:09:59 GMT -5
late to the party again as usual,,,does the vacuum line to the auto fuel tap have fuel in it??? perhaps the diaphragm has a hole in it,,,on the electrical side try running a ground to the engine,,,frame to a valve cover bolt,,,i've seen bad engine grounds create running issues,,,start fine then die out when warm,,(,an edit,,,check your exhaust also,,,a restricted exhaust will create conditions such as this as well,,a pinched pipe or internal collapse in the silencer will cause a no run issue as well when under load,,,but idle fine) I'm not sure what the vacuum line to the auto fuel tap is....what is that? and I'll check to see if it has fuel in it. (however, if you're talking about the vacuum line that runs from the petcock to a Y splitter, I don't think it has gas in it but can double check) Can you tell me which line you're talking about via this pic? Can anyone tell me if any of these hose's can be removed while we're at it?  I'll definitely check for a ground issue and I'll look over the exhaust. All great idea's., thanks! |
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Post by scripting25 on Oct 15, 2015 20:39:29 GMT -5
Alright gang. I did some testing today and took notes.
So I started by taking a casual ride around the hood. Ran like a champ.
I decided to start by checking the carb drain hose while the scooter was running fine.
Does fuel come out after successfully riding around?
Yes.
Does it spit fuel out the drain hose while trying to crank over, again after the scooter ran fine?
Yes.
So now I plug the carb drain hose back up.
Now it doesn't want to start. It's exhibiting the same symptoms as before, won't stay running, sounds like gas isn't getting in. Seems I've made it mad.
So... since it's angry and won't stay running, lets test with carb cleaner.
Lets spray carb cleaner on the back of the carb, the exhaust side I guess. What does it do?
Now its really mad and doesn't even want to kick over.
I tried a few times, nothing.
Ok, lets spray carb cleaner on the front of the carb, intake side I guess. What does it do?
It starts up and runs. Hmm... could be coincidence but it is running now.
So with it running I spray carb cleaner alllllll over the intake, what does it do, does the idle rev up?
No, nothing changes. Still idling fine. Zero change.
With it still running, I spray carb cleaner allllll over the exhaust side, what does it do, does the idle rev up?
No, nothing changes. Still idling fine. Zero change.
Lets go for a test ride since it's running ok.
30' down the road.... it dies out.
Ok, so it crapped out. Does fuel come out the carb drain hose?
Yes.
Does fuel come out while still unplugged and trying to start it?
Yes
So.....I put it away for the night.
I still have my wife's carb in my scoot. However, I am still using my auto choke thing. It was easier to take the 2 screws out and disconnect the auto choke and re-use it as opposed to un-wiring it all the way and using her's.
Perhaps the auto choke isn't disengaging?
I'll use her's tomorrow and test that next but wanted to get my testing details out to you guys for more advise.
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Post by scripting25 on Oct 15, 2015 7:58:33 GMT -5
I will do that test when I get home later mftic, thank you.
My question is...if it's not a gas issue or gas vacuum issue, what could it be?
Also, I was watching a video a bit ago and the guy says to spray carb cleaner all over the carb as it's running.
If the idle changes at all, that could represent an intake leak around the intake manifold.
I'm gonna do this test eventually too.
See this video around the 1:30 mark:
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Post by scripting25 on Oct 14, 2015 22:23:53 GMT -5
Ok. I did find that line and I didn't know what is was. I pulled the cable off the end instead of taking the screw out. Gas did come out upon first inspection.
What does that mean?
Although, I can't say that gas got back in there since I couldn't get it started again.
Maybe gas couldn't get back in there due to a choke somewhere.
Why is that hose bolted to the frame, since it seems to not go anywhere?
Is it strictly for troubleshooting?
Tomorrow I can empty the line and see if it starts.
If it does, I'll see how it acts and see if fuel gets back in there.
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