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1 Jan 2007
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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
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2 Jan 2007
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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.
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2 Jan 2007
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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.
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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.
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2 Jan 2007
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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 !!
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2 Jan 2007
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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 !!
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Did you need to rejet at all ? Good power increase ?
ta, ed
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2 Jan 2007
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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!
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2 Jan 2007
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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
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2 Jan 2007
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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
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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.
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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.
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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.
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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.
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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
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4 Jan 2007
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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.
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5 Jan 2007
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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.
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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.
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21 Feb 2010
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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
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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.
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