Contact Overland Solutions for all your custom modifications and setup for overland travel.

Go Back   Horizons Unlimited - The HUBB > Technical, Bike forums > Yamaha Tech
XT600E Jetting with opened up exhaust XT600E Jetting with opened up exhaust
Register FAQ Calendar Search Today's Posts Mark Forums Read

Yamaha Tech Originally the Yamaha XT600 Tech Forum, due to demand it now includes all Yamaha's technical / mechanical / repair / preparation questions.
With more than 58 destinations worldwide, Edelweiss Bike Travel is Number 1 in guided motorcycle tours!

Reply
Page 1 of 2 1 2
 
LinkBack Thread Tools Display Modes
  #1  
Old 1 Jan 2007
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Wirral, England.
Posts: 3,716
XT600E Jetting with opened up exhaust
Hey all

Ill be fitting a straight through unbaffled exhaust onto my 2003 XT600E. The manufacturer claims 6hp gain which may or may not be true but the original is way heavy and very restrictive.

Anyway, its gonna probably run lean now sure any tips of setting the twin carb set up on the XT ?

Pilot jet should be ok but should I change both main jets on both carbs (asuming they both have one) or is the needle clip sufficient ?

All info appreciated. Thanks, ed
__________________
Technician, BMW Chester Motorrad.
www.TouringTed.com
1994 XR650L
2001 NX650 Dominator.

Now that's more information than I care for interpol to know :/
Reply With Quote
  #2  
Old 2 Jan 2007
Contributing Member
Veteran HUBBer
  
Join Date: Oct 2002
Location: montana usa
Posts: 520
More sound less ground to ride.
Really loud bikes annoy lots of people in this world, If you want less weight just pack lighter and go on a diet.
Reply With Quote
  #3  
Old 2 Jan 2007
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Wirral, England.
Posts: 3,716
Quote:
Originally Posted by Bill Ryder
Really loud bikes annoy lots of people in this world, If you want less weight just pack lighter and go on a diet.
Yes I agree and thats one reason why I may not. Im not the type of person who likes making lots of noise and being antisocial. I really do want more power out of the poor XT though so will try to get a can with a removable baffle so I can be more social in built up places.

Sadly, more power usually means more noise.
__________________
Technician, BMW Chester Motorrad.
www.TouringTed.com
1994 XR650L
2001 NX650 Dominator.

Now that's more information than I care for interpol to know :/
Reply With Quote
  #4  
Old 2 Jan 2007
Brian Williams's Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Oct 2006
Location: england
Posts: 140
Try fitting an Arrow silencer and CRD header-pipe, this set up is much lighter, looks good and is not too much louder than standard but gives an increase in power which can be used without waking the dead !!
__________________
rust & dust
Reply With Quote
  #5  
Old 2 Jan 2007
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Wirral, England.
Posts: 3,716
Quote:
Originally Posted by Brian Williams
Try fitting an Arrow silencer and CRD header-pipe, this set up is much lighter, looks good and is not too much louder than standard but gives an increase in power which can be used without waking the dead !!
Did you need to rejet at all ? Good power increase ?

ta, ed
__________________
Technician, BMW Chester Motorrad.
www.TouringTed.com
1994 XR650L
2001 NX650 Dominator.

Now that's more information than I care for interpol to know :/
Reply With Quote
  #6  
Old 2 Jan 2007
Registered Users
HUBB regular
  
Join Date: Jun 2006
Location: Adelaide, Australia
Posts: 57
I fitted a straight through Staintune pipe to My XT and also replaced the stock paper air filter with an oiled foam Unifilter.
The dealer that i was taking my bike to for servicing checked the air/fuel mixtures with their sniffer probe and they were perfect. No re-jetting necessary for me!
Reply With Quote
  #7  
Old 2 Jan 2007
Registered Users
HUBB regular
  
Join Date: Mar 2006
Location: N.Ireland
Posts: 54
Wink
you got me thinking too. I botched up my own silencer for my '03 xt6e and im convinced it's made the bike slower at higher speeds but it sounds great. I stuppidly never even considered the fact that the jetting might be the reason. And this after jetting 2 stroke motocross bikes every weekend for years and my current 4 stroke honda. DOH. I must check the plug and do some trial tweaking
Reply With Quote
  #8  
Old 2 Jan 2007
*Touring Ted*'s Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Jul 2005
Location: Wirral, England.
Posts: 3,716
Quote:
Originally Posted by gavxt600e
you got me thinking too. I botched up my own silencer for my '03 xt6e and im convinced it's made the bike slower at higher speeds but it sounds great. I stuppidly never even considered the fact that the jetting might be the reason. And this after jetting 2 stroke motocross bikes every weekend for years and my current 4 stroke honda. DOH. I must check the plug and do some trial tweaking
The stock pipe is VERY restrictive. I cant see how the bike would not need rejetting or tampering, especially with a straight through pipe on. It may run but not to optimal and probably lean which will lead to overheating and glazing.
__________________
Technician, BMW Chester Motorrad.
www.TouringTed.com
1994 XR650L
2001 NX650 Dominator.

Now that's more information than I care for interpol to know :/
Reply With Quote
  #9  
Old 2 Jan 2007
Registered Users
New on the HUBB
  
Join Date: Dec 2006
Location: Waiuku New Zealand
Posts: 18
I fitted a Leo Vince muffler to my 2003 XT600E and it runs fine without rejetting. Nicer noise not sure whether there was a power increase but pipe is not straight thru either. A mate of mine has fitted a YZF450 muffler to his with out too much trouble and no rejetting. His is a bit louder than mine. Ride it first and if you must tamper with the jetting go ahead.
Andy.
Reply With Quote
  #10  
Old 2 Jan 2007
Brian Williams's Avatar
Contributing Member
Veteran HUBBer
  
Join Date: Oct 2006
Location: england
Posts: 140
I just put in a larger main jet in secondary carb, didn't do a dyno run but spark plug colour was fine and bike runs sweet. I did also had the head gas flowed and fitted a Wisco 620cc piston and had cylinder rebored to fit.
__________________
rust & dust
Reply With Quote
  #11  
Old 3 Jan 2007
Registered Users
HUBB regular
  
Join Date: Mar 2006
Location: N.Ireland
Posts: 54
Thumbs up
Quote:
Originally Posted by YAMXT
I fitted a Leo Vince muffler to my 2003 XT600E and it runs fine without rejetting. Nicer noise not sure whether there was a power increase but pipe is not straight thru either. A mate of mine has fitted a YZF450 muffler to his with out too much trouble and no rejetting. His is a bit louder than mine. Ride it first and if you must tamper with the jetting go ahead.
Andy.
I did basically the same as you're mate only i used a yzf250 silencer.
Turned out neat i reckon. Doesn't hang wayyy out like some of the pipes you can buy for the xt600

http://images.kodakgallery.com/photo...8711_0_ALB.jpg
Reply With Quote
  #12  
Old 4 Jan 2007
Registered Users
HUBB regular
  
Join Date: Sep 2006
Location: Western NC, USA
Posts: 21
1995 Xt600e
I got a Super Trapp ISD off ebay to replace the stock muffler/frame ... what a design?

anyway, the can has 8 discs in it, maybe a skosh louder than stock, but not obnoxious, mellow like a thumper should be when on the gas, putt putt when idling.

Also K&N filter, stock airbox.

no rejetting!!!

I was surprised.

Either the pipe or the filter would have expected to cause it to go lean, but the plug looks fine.

I check by installing new plug.

put plug wrench in pocket.

go out and when engine is warm, I run 65 mph on highway ... as flat as I can find, for several miles without speed changes ... then I hit the kill switch and pull the clutch at same time, coast into a spot where I pull the plug and inspect.

__________________
Do one thing every day that scares you. Baz Luhrmann
Women and cats will do as they please, and men and dogs should relax and get used to the idea.
An armed society is a polite society. Manners are good when one may have to back up his acts with his life.
Robert A. Heinlen
Adventure is discomfort recounted at leisure. Flash / GSWayne
Chrome don't get ya home. Rob Nye
1995 XT600E - 1992 TDM850 - 1984 GPz750
Reply With Quote
  #13  
Old 5 Jan 2007
Registered Users
HUBB regular
  
Join Date: Jun 2006
Location: Adelaide, Australia
Posts: 57
Quote:
Originally Posted by tedmagnum
I cant see how the bike would not need rejetting or tampering, especially with a straight through pipe on. It may run but not to optimal and probably lean which will lead to overheating and glazing.
I guess this all depends on the particular bike in question and how rich it was running in the first place. I was told that from the factory they come set-up to run very rich, so leaning them out a little bit won't hurt.
Reply With Quote
  #14  
Old 21 Feb 2010
Registered Users
New on the HUBB
  
Join Date: Feb 2010
Posts: 3
XT600 Hotdog
I have been running a 96 XT600e for about 5 years with a straight-through 2 inch hot-dog pipe which maybe cost about $30. It sounds incredible, a real low-down thump, no sewing-machine whine like a 4 cylinder.

No complaints from the neighbours at idle, and i usually kill the motor at the of the street to preserve my neighbourly relations.

Otherwise, the carb is completely stock, although, the rubber carbuerator manifold recently deteriorated which made the bike run poorly, but since this has been repaired it runs incredibly.

The iridium plug showed a bit of a blackish and perhaps oily coating, although this has since been attributed to the a very blocker aircleaner.

After cleaning the carbuerator and airfilter, replacing the manifold, replacing the swingarm engine mounts (which had incidently completely disintergrated) the bike runs flawlessly, now approaching 75,000km and no rebuilds, almost no smoke. Have used fully synthetic oil and changed oil and filter every 3000km.

Was going to sell after years of use, commuting 300km per week, but it is now my newest favourite toy once again.

Even with tall gearing and heavy chassis, 0-100km/h in under 6 seconds is impressive and very satisfying, even if there is not much puff left over 110km/h, and 75,000km on the clock
Reply With Quote
  #15  
Old 21 Feb 2010
Registered Users
New on the HUBB
  
Join Date: Feb 2010
Posts: 3
Carby mixture
There is a mixture adjustment screw facing down underneath the carb below the idle screw.

Stock adjustment is 2.5 turns out from full in.

My mechanic has suggested turning in slightly more, maybe half a turn to richen up a bit for the straight-through pipe.
Reply With Quote
Reply
Page 1 of 2 1 2

« Previous Thread | Next Thread »

Currently Active Users Viewing This Thread: 1 (0 Registered Users and/or Members and 1 guests)
 
Thread Tools
Display Modes
Linear Mode Linear Mode

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Leo Vince exhaust for 1993 XT600E py330 Yamaha Tech 4 20 Jan 2008 02:37
Exhaust xt performer Yamaha Tech 1 21 Feb 2006 18:01
High Altitude Carb Jetting Franki Suzuki Tech 0 26 Jun 2004 19:42
High Altitude Carb Jetting Franki Honda Tech 0 26 Jun 2004 19:41
shock, exhaust problems cabron Yamaha Tech 0 24 Mar 2003 13:49


All times are GMT +1. The time now is 19:01.

Contact Us - Horizons Unlimited Motorcycle Travellers Website - Archive - Privacy Statement - Top