|
|
|
|||||||
| Mini Buggy General Discussion General Discussion forum for Mini Buggies. (American Sportworks, HammerHead, Carter, etc) |
|
|
Thread Tools |
|
#1
08-04-2011, 02:46 PM
|
||||
|
||||
Yerf Dog Exhaust Upgrade
The end of last year John (Olderthan) was kind enough to give me a silencer to try on my daughters Yerf. Well I got it, took one look at it & thought that will be an easy exhaust project and then set it under the bench and just forgot about it.
 Fast forward 8 months and her Yerf's exhaust developed an exhaust leek right at the cylinder so I had a little spare time today and pulled her exhaust off. Well since it was off I decided it was time to do the silencer mod.  Here is what I came up with..    The whole thing took about 30 minutes and now her yerf has a nice deep tone to it. I have yet to check it with a gps to see if it picked up and speed but it does seem to sound a little more responsive. 
|
|
#2
08-04-2011, 03:28 PM
|
|||
|
|||
|
did someone build it or buy it prefab?It looks like it would beath easier
|
|
#3
08-04-2011, 04:05 PM
|
||||
|
||||
|
Quote:
 ) and the pipe is just the stock exhaust from the Yerf. I made it myself this morning by just cutting the Yerf stock exhaust and trimming the silencer pipe to fit. Once I had everything fitting the way I liked it, I just welded the silencer to the pipe & then made the brace out of a couple of flat washers and a piece of the stock mufflers bracing.I have only ridden it a little bit, but It does seem to run better since the mod. It is louder than it was but not excessive. I did repack the silencer while I had it apart and so far am very happy with the mod. 
Last edited by Rarerat; 08-04-2011 at 04:07 PM. |
|
#4
08-04-2011, 06:49 PM
|
|||
|
|||
|
U should start making them and selling them
|
|
#5
08-04-2011, 11:49 PM
|
||||
|
||||
|
Looks sweet!Nice job!
|
|
#6
09-06-2011, 11:41 AM
|
||||
|
||||
|
Thanks Metal,
I havent been on the board much lately but we have had the buggy out in the deep sand a couple of times since I built the exhaust. It defiantly runs better, no doubt about it. I dont have any idea what an aftermarket exhaust would cost, but I would guess you could buy these type of used silencers on egay all day long for just a couple bucks. It is one of those "no skill involved"  type of mods anyone on the board could do for a little extra power out of their Yerf..
|
|
#7
09-06-2011, 07:06 PM
|
||||
|
||||
|
That stock yerf muffler is really restrictive and power robbing. I sure you could feel a little more in the mid to top end range. If you haven't already, You might wanna take a look at your plug, you might be running lean now. With a free flow pipe and a uni, the jetting normaly goes up from a 114 to a 128. That much jump in jetting gives you some idea of how restrictive the stock system is.
|
|
#8
09-07-2011, 08:53 AM
|
|||
|
|||
|
could I just drill out the stock muffler?? If so where would I order the larger jet? Thanks for the help.
|
|
#9
09-07-2011, 09:53 AM
|
|||
|
|||
|
found the jets
|
|
#10
09-20-2011, 06:51 AM
|
|||
|
|||
|
Rarerat, that is a very clean looking exhaust setup compared to the stock. I saw your most recent posts on youtube. Are those after the exhaust swap? Also, what mods have you done to your Yerf?
Joe |
|
#11
09-20-2011, 08:23 AM
|
||||
|
||||
|
Quote:
|
|
|
