Vintage Dirt Bike Q & A

Anything and everything about Vintage Dirt Bikes! After you Register, email nathan@alp-sys.com and let me know so I can activate you.
It is currently Thu Mar 28, 2024 7:56 am

All times are UTC - 7 hours [ DST ]




Post new topic Reply to topic  [ 1 post ] 
Author Message
 Post subject: 1980 TT250 carb help
PostPosted: Sat Feb 28, 2015 7:21 pm 
Offline

Joined: Fri Jan 16, 2015 5:30 pm
Posts: 2
I have a TT250 that I "rescued" from benign neglect. Carb was gunked up - now cleaned and reset to factory specs. The factory airbox is gone and it has a "straight through" air cleaner hanging off the back of the carb (little resistance).

When I start the bike it is running WAY too lean (reacts funny, plug is white) and I am stuck as to the next path to take... would like your thoughts. A few ideas I have:

a) Idle mixture adjustment. When I cleaned out the carb I reset this mixture to one turn out. I can make it richer (screw out?) although not sure that would help. Frankly, not sure that the one turn out is the correct setting either.

b) Buy a replacement stock airbox. This should provide more intake resistance which should help the mixture

c) re-jet the carb. I am not sure about this one - unless you guys have advice. I have limited experience with this and have found it pretty much a time consuming "hit or miss" situation.

Let me know your thoughts on the best path forward. Thanks


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 1 post ] 

All times are UTC - 7 hours [ DST ]


Who is online

Users browsing this forum: No registered users and 15 guests


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 post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Group