Road Star Forum
Welcome, Guest
Please Login or Register.    Lost Password?
Re:Cobra 2/1 baffle info
Go to bottom Post Reply Favoured: 0
TOPIC: Re:Cobra 2/1 baffle info
#1014541
askbob11 (User)
Fresh Boarder
Posts: 14
graphgraph
User Offline Click here to see the profile of this user
Cobra 2/1 with Big City Thunder QQ install 6 Months ago  
Currently working on my '01 1600 RS. It has the Cobra 2 into 1 pipe. The baffle in it now has been modified quite a bit from what I can tell by the previous owner. The tone with this baffle is quite nice but it still has that sharp crack and some backfiring. What I'm looking for is opinions and options to quite it down. Haven't been able to find a good pic of the baffle in its stock form, so that'd be a start.

Here are the pics:





 
Logged Logged  
 
Last Edit: 2017/06/23 22:47 By askbob11.
  The administrator has disabled public write access.
#1014555
Agpilot (User)
Platinum Boarder
Posts: 1566
graphgraph
User Offline Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
It looks just like mine. What do you think has been modified? I have inserted the smartpartz baffle in mine it mellows it out some what. It is inserted into the baffle you pictured. I can wind it up to 4 grand, and back off the throttle and it will decelerate with out any popping whatsoever. You must have a leak somewhere vacuum or exhaust.
 
Logged Logged  
  The administrator has disabled public write access.
#1014556
Agpilot (User)
Platinum Boarder
Posts: 1566
graphgraph
User Offline Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
http://www.smartpartz.com/SPZCBPRO.html


You can also get some muffler packing from your nearest dirt bike shop or order some and pack the back of the baffle. I have packed mine and also ran with out the packing and can't tell much difference. The packing goes between the head and the cone.
 
Logged Logged  
 
Last Edit: 2017/06/18 18:05 By Agpilot.
  The administrator has disabled public write access.
#1014557
129drifter (User)
Platinum Boarder
Posts: 1561
graphgraph
User Online Now Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
what did yall do to get the baffle out of the Cobra 2 into 1 once it had been in there a while? Did you have to remove the muffler section of the exhaust system to get it out? I took the screws out of the end of the pipe and that inner unit was really tight like it did not want to budge.

I have a Smartpartz baffle to go in there and a new package of wrap stuff made for 4 stroke bikes just have not done it yet.
 
Logged Logged  
 
Last Edit: 2017/06/18 18:21 By 129drifter.
  The administrator has disabled public write access.
#1014558
Agpilot (User)
Platinum Boarder
Posts: 1566
graphgraph
User Offline Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
I used a pair of channel locks stuck them up in there and spread them and popped it out... Once you get the smartpartz baffle in there you can reach in there and grab it with some channel locks and pull it out. OH Yea, throw those button head allen wrench bolts away and go to the hardware store and by some regular hex head bolts to replace them...
 
Logged Logged  
 
Last Edit: 2017/06/18 18:34 By Agpilot.
  The administrator has disabled public write access.
#1014563
129drifter (User)
Platinum Boarder
Posts: 1561
graphgraph
User Online Now Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
Thanks for the tips. I will get regular bolts to replace the ones that came with the kit
 
Logged Logged  
  The administrator has disabled public write access.
#1014564
askbob11 (User)
Fresh Boarder
Posts: 14
graphgraph
User Offline Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
Agpilot wrote:
It looks just like mine. What do you think has been modified? I have inserted the smartpartz baffle in mine it mellows it out some what. It is inserted into the baffle you pictured. I can wind it up to 4 grand, and back off the throttle and it will decelerate with out any popping whatsoever. You must have a leak somewhere vacuum or exhaust.


Are the holes welded up near the rear of the baffle on yours? It also looks like it's been taken apart and the inside part of the baffle has been cut down. Looks that way anyhow.
No leaks of any kind. I would say more of a deceleration cackle, not backfire.
 
Logged Logged  
  The administrator has disabled public write access.
#1014598
Agpilot (User)
Platinum Boarder
Posts: 1566
graphgraph
User Offline Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
129drifter wrote:
Thanks for the tips. I will get regular bolts to replace the ones that came with the kit I am referring to the ones that hold the tip and the baffle in the body. Over time they can get hard to get out and you need some meat to get ahold of instead of the Little allen head. I had to remove the muffler to drill a couple of mine out because they were really seized in the threads.
 
Logged Logged  
  The administrator has disabled public write access.
#1014609
askbob11 (User)
Fresh Boarder
Posts: 14
graphgraph
User Offline Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
A small slide hammer will easily remove the stock baffle. A bit of high temp anti seize will also help on the baffle bolts.

I talked with Big City Thunder today and ordered a set of the QQ baffles. It is actually 2 seperate baffles that insert into the head pipes right before the tail megaphone section is attached.
They say to also leave the rear original baffle in as well.

Would still like to confirm my baffle is indeed stock.
 
Logged Logged  
 
Last Edit: 2017/06/19 10:36 By askbob11.
  The administrator has disabled public write access.
#1014616
Agpilot (User)
Platinum Boarder
Posts: 1566
graphgraph
User Offline Click here to see the profile of this user
Re:Cobra 2/1 baffle info 6 Months ago  
askbob11 wrote:
A small slide hammer will easily remove the stock baffle. A bit of high temp anti seize will also help on the baffle bolts.

I talked with Big City Thunder today and ordered a set of the QQ baffles. It is actually 2 seperate baffles that insert into the head pipes right before the tail megaphone section is attached.
They say to also leave the rear original baffle in as well.

Would still like to confirm my baffle is indeed stock.

As far as I can tell it looks identical to mine.
 
Logged Logged  
  The administrator has disabled public write access.
Go to top Post Reply
Powered by FireBoardget the latest posts directly to your desktop
...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... ...................................................................... -->
New Forum Posts




The Road Star Clinic is a collaborative community of riders who archive and publish user contributed technical data about Yamaha Road Star motorcycles.

We also sponsor the creation and support of other community websites similar to our own. Inquiries about availability of a website for your community can be submitted to us via any "Contact Us" option on the Clinic.

Copyright 2003-2007 Road Star Clinic and its respective authors. Road Star Clinic is sponsored by the folks at MLSHomeQuest.com.