All Things Moto! Web Forums

Go Back   All Things Moto! Web Forums > Dirt Bike - ATV - Suspension Forums > 2-Stroke Dirt Bike Forums > 2-Stroke Dirt Bikes - Yamaha

     
Reply
 
LinkBack Thread Tools
  #1  
Old 03-07-2006, 06:10 AM
Satch0922's Avatar
ATM! Addict
 
Join Date: Feb 2003
Location: USA
Posts: 9,220
flasher REAL YZ250 PIPE SHOOTOUT

This was done by one of the TT members "Dunecj2a" and used with his permission. This is some great information for YZ250 owners looking for aftermarket pipe combinations.

OK I did the Pipe "Shootout" this Saturday. This is how they stacked up for me.

Bike = 06 YZ250. V-Force3 reeds. Stock Gearing.
Jetting = Stock pilot. Stock needle and clip pos. 180 main, (1 up from stock). Stock air screw set 1.5 out.
**Note: 180 main on all tests. 178 looked a little lean but performed same as 180**
Fuel = straight VP C12. 30:1 mix (Yamalube...always!)
Temp = 80 ish, sunny, dry
Riding area = Open Desert. Deep sand, Hardpack area''s, MX type track with DEEEEP sand whoops, lots of berms with jumps right out of them. Hardpack and Sand berms.
Rider = 165 lbs. Stupid old man who thinks he's 16.

1. Stock pipe with PC R304 shorty and FMF Shorty. I included these 2 together because both silencers performed almost identically. Fit and finish on both cans are a 10. FMF shorty is just a little louder. The silencers make the motor snap and really clean up throttle response. Right away you can notice the difference on the bottom and thru the mid. Bottom end gains are really noticable, especially pullin out of turns with deep sand. The mid pulls harder and crisper with no overrev loss. Without a Dyno there is no noticable loss on top end overrev either. What I liked most with this combo was how the different silencers gave the bike a "lighter" feel. It produced more snap and made the motor crisper so hitting big jumps was easier. Thats what made the bike have a "lighter" feel. Power comes on sooner and hits hard, it really wakes up the charecteristics of a 2 stroke. Great combo if you are a 2 stroke die hard and love the crisp snap and hard hit of the power band.

2. FMF SST with FMF Shorty silencer. Fit and finish is awsome, top notch. Bolts on with eez, installation is a peice of cake. Stock pilot and needle are perfect. Stock main is also good, but I went up one because my plug looked a little lean with a 178. The first thing I noticed with this combo was how much more torque it gave my bike. Throttle response was perfect and immediate. It was noticable right from the bottom to the top. It made my 250 feel like a 4 stroke. I was able to shift way sooner in the deep sand and turns. Wheel spin was reduced comming out of hardpack turns since the motor didn't want to rev out high and quickly. Some of the 2 stroke snap was gone with this combo and moved to produce more torque. I noticed that I lost overrev in the middle and top, but traded it for more trackable torque. This pipe combo produced the most 4 stroke like power, it smoothed out the powerband hit and took away the snap when you crack the throttle. In exchange you get more trackable torque with less wheel spin all across the range. I could definately have run a 49 tooth rear and maybe a 48 with the power it produced in the mid and top. I could pull 3rd gear starts and grab 4th quickly.

2. Pro Circuit Works with R304 Shorty. Just like FMF for fit and finish, top notch. Throttle response was crisp and immedeate also. On the bottom I noticed it pulled a little longer and harder than the other combo's. In the middle it gained some overrev and pulled long with plenty of power. It was very similar to the Stock/304 & Shorty combo. The Works pipe had a little more torque up top but signed off quicker than the Stock combo. It sacrificed top end overrev for torque. This combo was really good in tight sections and deep sand, it also revved higher and longer than the SST combo. The PC combo didn't smooth out the hit and powerband like the SST did. It produced 2 stroke like power and was very similar to the Stock combo. I did notice a loss in Top end overrev especially in wide open sections compared to stock combo. This was a great set up in tight situations when you need a little extra on the bottom and mid and aren't needing to use top end power alot.

Well my favorite combo was the Stocker and either the PC or FMF shorty. I love the Top end overrev and how hard the motor hits with this set up. All I noticed were gains across the power band with switching out the silencers. Anyways just what I came up with, but just between these three different set ups there are a considerable amount of differences....Go Ride
Reply With Quote
  #2  
Old 03-08-2006, 08:05 AM
DRGSin393's Avatar
ATM Contributor!
 
Join Date: Nov 2005
Last Online: 06-10-2014 12:42 PM
Location: Indy
Posts: 7,720
Default Re: REAL YZ250 PIPE SHOOTOUT

Awesome thread!! Answered all the questions I had. Nice job!
Reply With Quote
  #3  
Old 03-14-2006, 11:53 PM
Aus_Rider_22's Avatar
ATM Contributor!
 
Join Date: Dec 2003
Last Online: 04-22-2014 12:55 AM
Location: Australia, mate!
Posts: 7,555
Default Re: REAL YZ250 PIPE SHOOTOUT

Thanks for posting, Brent.

I agree 100%, I don't rate aftermarket pipe's anything over stock as far as performance comes. Definitly not worth forking out for new one unless your stock one is totalled!

My silencer livened it up more than anything
Reply With Quote
  #4  
Old 03-15-2006, 01:20 AM
Red Rider 943's Avatar
Banned
 
Join Date: Nov 2003
Last Online: 04-12-2006 10:09 PM
Location: Cherry Hill, NJ
Posts: 943
Default Re: REAL YZ250 PIPE SHOOTOUT

Let me add a few things.

1. Don't waste your time and money on an sst, it's garbage.
2. In almost every situation, the stock pipe is hard to beat. They usually have the broadest power band. Think of an after market pipe to tune power where you want it, not to add it.
Reply With Quote
  #5  
Old 04-30-2006, 06:34 PM
kountryboy's Avatar
Beginner Class
 
Join Date: Jun 2005
Last Online: 11-11-2009 05:56 PM
Location: mississippi
Posts: 17
Default Re: REAL YZ250 PIPE SHOOTOUT

What would be a good silencer to go with a fmf fatty im looking for more power all around.
Reply With Quote
  #6  
Old 04-30-2006, 07:39 PM
kwmotocrosspunk's Avatar
ATM! Pro Class
 
Join Date: Jun 2005
Last Online: 08-15-2012 01:48 AM
Location: Kirkland, Washington
Posts: 3,623
Default Re: REAL YZ250 PIPE SHOOTOUT

Quote:
Originally Posted by kountryboy
What would be a good silencer to go with a fmf fatty im looking for more power all around.
ive heard only good things about the FMF shorty
Reply With Quote
  #7  
Old 04-30-2006, 07:53 PM
Henry's Avatar
Pro Class
 
Join Date: Apr 2006
Last Online: 05-24-2009 04:56 PM
Location: CT
Posts: 1,101
Default Re: REAL YZ250 PIPE SHOOTOUT

these exhausts don't make the bike excessivly louder, right? you said the fmf is a little louder than PC but how much louder than stock? because a lot of tracks are trying to encourage people to use stock or quiet silencers so they dont get closed down.
Reply With Quote
Sponsored Ads
  #8  
Old 05-18-2006, 08:03 PM
YZinTheSand's Avatar
Novice Class
 
Join Date: May 2006
Last Online: 08-29-2006 07:52 AM
Location: Topeka,KS
Posts: 61
Default Re: REAL YZ250 PIPE SHOOTOUT

i have a 03 YZ250 that i put a fmf fac. fatty on w/ a shorty silencer, the shorty gives you back a little of the low end snap that the fatty takes away and my
fac. fatty is really loud
I heard the best pipe combo for the YZ250's is the Dep pipe and silencer
Reply With Quote
  #9  
Old 05-18-2006, 11:52 PM
*cly.sp*'s Avatar
Novice Class
 
Join Date: May 2004
Last Online: 07-16-2007 11:43 PM
Location: CA
Posts: 56
Default Re: REAL YZ250 PIPE SHOOTOUT

Some one commented on sound... when I put an FMF fatty and Titanium 2 silencer on my 05 YZ250 it was definatly louder... no doubt about it. This setup had better throttle response and let you rev out longer. Anyway the Fatty is now a peice of scrap metal thanx to some crashes... I sold my stock system for $90 bucks and bought an SST for $130 on ebay (yet to be put on)... I dont think I'll be taking another ATM members advice an throw it away....
Reply With Quote
Reply

  All Things Moto! Web Forums > Dirt Bike - ATV - Suspension Forums > 2-Stroke Dirt Bike Forums > 2-Stroke Dirt Bikes - Yamaha


Bookmarks

Thread Tools


Similar Threads for: REAL YZ250 PIPE SHOOTOUT
Thread Thread Starter Forum Replies Last Post
in need of 86 yz250 pipe bansheeduster Classified Ads 0 09-20-2007 12:37 AM
First real ride on the YZ250 this past weekend The Baron General Discussion 11 08-08-2007 09:33 AM
What pipe for an 02 yz250 icebat 2-Stroke Dirt Bikes - Yamaha 5 05-13-2004 06:53 AM
400EX pipe shootout Woody_YZF ATV/UTV - Honda 8 09-18-2003 06:17 AM
Raptor Pipe shootout Woody_YZF ATV/UTV - Yamaha 5 08-12-2003 10:40 PM


All times are GMT -6. The time now is 08:02 AM.

Portal Forums Photo Gallery Popular Tags RSS Feeds

Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright ©2002-2014, JDub Consulting, Inc. All Right Reserved.