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Old 11-08-2014, 06:44 PM   #1
AtlScooterguy   AtlScooterguy is offline
 
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Jonway 150cc exhaust header broke today...

I was riding home today and I noticed my scooter got super loud but I was almost home, I get home and notice that the exhaust header ( I think that's what its called, not sure) had broken off from where it connects to the engine. I have no idea how it happened but Im going to just order a whole new exhaust, I have been wanting a new chrome one. I was just wondering do these come in different sizes for 150cc gy6 scooters or what? My scooter is a 2013 Jonway yy150t-21. Any help would be appreciated. http://imgur.com/bzoS01h http://imgur.com/zhx2ssk http://imgur.com/iwOLQ0o
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Old 11-09-2014, 06:31 AM   #2
kz1000st   kz1000st is offline
 
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You need the two piece system. Scroll down to the GY6 pipes.

http://www.partsforscooters.com/Stre...st-Performance

Like this for instance.

http://www.partsforscooters.com/125-...ategory=132557
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Old 11-09-2014, 09:54 AM   #3
AtlScooterguy   AtlScooterguy is offline
 
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Ok thank you. I was thinking last night and I was wondering if maybe I should just order a header pipe for now just to get me back on the road. I found this chrome one for gy6 150 so Im guessing that means any gy6. Do you know if this would work? http://www.ebay.com/itm/SCOOTER-150C...3D171501058178
I still plan on upgrading my exhaust but i'm kinda short on money now. The header is only $32.
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Old 11-09-2014, 03:09 PM   #4
kz1000st   kz1000st is offline
 
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I would think that would work. Look yours over and make sure the bends match. It should. There are only a couple of GY6 150cc styles. The other one is a one piece muffler/header and you don't have that.
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2008 Eagle Milano 150- 9,679 miles
2009 Honda Rebel 250- 10,434 miles
2009 CF Moto Fashion- 16,023 miles
2009 MC-114 50cc Cub Clone- 4,317 miles
twowheeler.yolasite.com/

That's 30,049 China Scootin miles and Counting.
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Old 11-14-2014, 12:18 PM   #5
AtlScooterguy   AtlScooterguy is offline
 
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Got the pipe..

Well I have the new pipe on but my stock header has some hose coming from it near the engine, the new one doesn't. I couldn't get the hose off the old one so I cut it as close as i can. None of the header pipes I have seen online have the little hose thing on it. My question is what does the hose do and what should I do with it now? Its not connected to anything. I haven't tested it out yet because my battery was almost dead and i'm charging it now.
http://imgur.com/UoDimTB
http://imgur.com/F0JWdqV
http://imgur.com/b3Xw1iY
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Old 11-15-2014, 10:05 AM   #6
AtlScooterguy   AtlScooterguy is offline
 
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It runs fine

Well it's running fine now but I would still like to know whats up with that hose. Thanks in advance.
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Old 11-15-2014, 12:54 PM   #7
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The hose is part of the emissions system on your scooter. The other end attaches to the air box snorkel...should be removed, and replaced with a vacuum cap, or at least plugged with a bolt and small hose clamp. This will keep unfiltered air from being sucked into your engine. 1st photo is before removing, 2nd is after..

[IMG]
[/IMG]

[IMG][/IMG]
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Old 11-15-2014, 01:12 PM   #8
AtlScooterguy   AtlScooterguy is offline
 
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Thumbs Up Thank you

It just started to stutter/bog/act like it wanted to cut off or something. I'm going to plug it and try it again. Hopefully that will work out.
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Old 11-16-2014, 08:35 AM   #9
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Question

I plugged it and I still get the same problem. Not sure what's going on.
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Old 11-16-2014, 11:29 AM   #10
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You have a vacuum leak somewhere. Probably related to this pipe change. Start the scooter and listen carefully around the engine. If you hear a hissing sound, find the source. I had a similar problem years ago and it was a bad relief valve open to the air pulling vacuum. I plugged it and all was well.
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2008 Eagle Milano 150- 9,679 miles
2009 Honda Rebel 250- 10,434 miles
2009 CF Moto Fashion- 16,023 miles
2009 MC-114 50cc Cub Clone- 4,317 miles
twowheeler.yolasite.com/

That's 30,049 China Scootin miles and Counting.
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Old 11-16-2014, 07:40 PM   #11
AtlScooterguy   AtlScooterguy is offline
 
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Oh No

That's been my main problem all day, I been trying all day to get it started back up I got it to start one time but it wouldn't idle it would only stay if I gave it a little bit of gas and it was still boging every time it hit about half throttle or less. I didn't have it on long enough to hear any air leaks. I always have a hard time when it gets colder but never this hard. I will try again later i'm letting the battery charge again.
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Old 11-17-2014, 05:14 PM   #12
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Got It started back up..

Still doing the same thing but I think I figured it out. I seen smoke coming from where the pipe connects to the muffler. Once it cools off i'll try to tighten the bolts more to see if that does it. I have it on video here.
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Old 11-18-2014, 05:15 PM   #13
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I have not got it started up since the video.
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