General Tech Good at troubleshooting? Have a non specific issue? Discuss general tech topics here.
Sponsored by:
Sponsored by:

Exaust modification

Old Oct 13, 2006 | 02:05 AM
  #1  
18000rpm's Avatar
Thread Starter
Joined: Oct 2006
Posts: 8
Likes: 0
Default Exaust modification

I asked a few days ago about any problems with cutting out some of the baffiling on my cbr250r. After one response saying no to and getting a few more opinions i did it anyway. I dynoed the bike before the modification at a friends shop it was at 45 whp, after removing all but one section of the baffiling and welding it all back up not only did it sound ridiculous it dynoed at 46.5 whp. I dont think thats bad for a few hours of work. In the lower rpms it pulls better and the revs pick up much easier. Just thought i would mention it.

( P.S. Dynoing a bike it probably the most fun you can have at a standstill )
 
Reply
Old Oct 13, 2006 | 06:15 AM
  #2  
trixtrem's Avatar
Joined: Sep 2005
Posts: 167
Likes: 1
From:
Default RE: Exaust modification

they only thing i can ask was, did you get a fuel air mixture graph, just to make sure it wasnt runnin lean, cos every one knows 'they always go the best b4 they blow up'... just a though.... i did the baffle in a 250rr, by just using a 1/2 long serise drill from the flange end and jut drilling it out.... sounded unreal, but needed a half size bigger mains jet..... though we just used some oxy nozzel drill instead... not perfect but worked a treat....

peace
 
Reply
Old Oct 13, 2006 | 09:01 PM
  #3  
18000rpm's Avatar
Thread Starter
Joined: Oct 2006
Posts: 8
Likes: 0
Default RE: Exaust modification

i romoved three of the inner sections on the exasust taking about 1/3 of the original length off. Do you recomend i get a fuel are mixture thing done. Or could you recoomend a size of jet to throw in right now? Thanx Elliott
 
Reply
Old Oct 13, 2006 | 11:41 PM
  #4  
Dave K's Avatar
Senior Member
Joined: Jul 2006
Posts: 419
Likes: 0
From: west Central Ohio
Default RE: Exaust modification

I have been trying to see a picture of a CBR250R. I have never heard of one, let alone seen one. Sounds interesting. Any place to see a picture of one? Where were they imported to?
 
Reply
Old Oct 14, 2006 | 12:23 AM
  #5  
18000rpm's Avatar
Thread Starter
Joined: Oct 2006
Posts: 8
Likes: 0
Default RE: Exaust modification

thats a pic of the one i just bought at the store it was purchesed at. I fyou google cbr250 you should get alot.
 
Reply
Old Oct 14, 2006 | 12:24 AM
  #6  
18000rpm's Avatar
Thread Starter
Joined: Oct 2006
Posts: 8
Likes: 0
Default RE: Exaust modification

thats a pic of the one i just bought at the store it was purchesed at. I fyou google cbr250 you should get alot.
 
Reply
Old Oct 14, 2006 | 12:25 AM
  #7  
18000rpm's Avatar
Thread Starter
Joined: Oct 2006
Posts: 8
Likes: 0
Default RE: Exaust modification

srry double post
 
Reply
Old Oct 14, 2006 | 01:20 AM
  #8  
Dave K's Avatar
Senior Member
Joined: Jul 2006
Posts: 419
Likes: 0
From: west Central Ohio
Default RE: Exaust modification

Thank you. Awesome 250! I have never seen or even heard of them. This would be a PERFECT bike for my daughter. Sure is a shame they weren't imported to the States. I just love the looks of this bike.....
 
Reply
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
alexuth
CBR 600F3
13
Apr 13, 2011 12:15 PM
Adon47
CBR 600RR
17
Apr 13, 2009 09:09 PM
Michalis
600 Modifications
1
Sep 11, 2008 12:53 PM
akes
1000 Modifications
1
Jul 30, 2007 02:35 PM
Geekster47
CBR 1000RR
3
Apr 1, 2006 11:06 AM


Thread Tools
Search this Thread

All times are GMT -5. The time now is 06:22 PM.