Forums
 FAQHelp  LinksLinks    SearchSearch   MemberlistMemberlist   UsergroupsUsergroups   RegisterRegister 
 ProfileProfile   Log in to check your private messagesLog in to check your private messages   Log inLog in 

Blew something,now won’t go over 7mph see video, need diag

 
Post new topic   Reply to topic    Forums » General Discussion Previous topic :: Next topic  
Author Message
125cclemon
Member


Joined: 02 Mar 2015
Posts: 25
Location: Chicago
125cc buddy

PostPosted: Mon Aug 12, 2019 3:15 pm    Post subject: Blew something,now won’t go over 7mph see video, need diag Reply with quote

https://www.reddit.com/r/scooters/comments/cp37tg/need_help_with_a_diagnosis/?utm_source=share&utm_medium=ios_app

https://youtu.be/SBjF3HeVYHo


So I have spark and fuel, but I can’t get her over 7mph and she was over heating when I got it home.

The belt looked fine although a bit dry.

I had my auto Cock go out earlier this year, so my carb is very clean and fuel system is brand new.

Ignition coil looks intack.

Going to check intake manifold, gear oil and vacuum diaphragm. Any other tips would be helpful.
Back to top
View user's profile Send private message  
Dooglas
Member


Joined: 08 Jul 2007
Posts: 4216
Location: Oregon City, OR
Buddy 125, GTS300, Typhoon 125

PostPosted: Mon Aug 12, 2019 4:04 pm    Post subject: Re: Blew something,now won’t go over 7mph see video, need Reply with quote

125cclemon wrote:
I had my auto Cock go out earlier this year...……...

Well, that was certainly unfortunate!
Back to top
View user's profile Send private message  
Stanza
Member


Joined: 29 Jan 2018
Posts: 464
Location: Chicago
Puch Maxi, Honda C70

PostPosted: Mon Aug 12, 2019 4:32 pm    Post subject: Reply with quote

Vacuum diaphragm gets my vote.
Back to top
View user's profile Send private message  
scootERIK
Member


Joined: 12 Jul 2012
Posts: 369
Location: Lake Geneva, WI
Buddy 125

PostPosted: Mon Aug 12, 2019 4:36 pm    Post subject: Reply with quote

First I would take a look at the rubber diaphragm in the carb, make sure it is fully seated and doesn't have any holes in it.

Then I would check that the spark plug cap is on tight and the plug is in good condition.

Next I would take the variator apart to see how that looks, it kind of sounds like the rollers are banging around.

After that it gets more complicated.

Also, how many miles on the scooter and has it had any other problems or repairs.

One more thing- With the scooter on the center stand what does it sound like if you give it some gas(like 1/8 throttle) and just hold it steady? Does the rattling get quieter or does it stay steady?
Back to top
View user's profile Send private message  
buzzvert
Member


Joined: 28 Jul 2019
Posts: 76
Location: Longmont, CO
Buddy 125 (2), lots of other bikes no longer in the garage

PostPosted: Mon Aug 12, 2019 5:01 pm    Post subject: Reply with quote

CV diaphragm, loose bolt on intake manifold, clogged air intake, or clogged exhaust. Potential clogged fuel filter or tank. Gas cap vent clogged. Also, gremlins.
Back to top
View user's profile Send private message  
sc00ter
Member


Joined: 30 Mar 2008
Posts: 830
Location: Norfolk VA
19 Piaggio Liberty S, 98 Zuma

PostPosted: Tue Aug 13, 2019 2:26 am    Post subject: Reply with quote

Any metal chunks floating around the oil/on the dipstick?
Back to top
View user's profile Send private message  
Display posts from previous:   
Post new topic   Reply to topic    Forums » General Discussion Previous topic :: Next topic  Time: GMT

 
Jump to:  
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You cannot download files in this forum

  Scootergear designed by riders for riders


Powered by phpBB © 2001, 2005 phpBB Group
All Content Copyright 2007-2011 by Modern Buddy. All Rights Reserved.