Posted January 4, 201114 yr does any1 kno where i would get a jetting kit for my 05 yamaha dt125? preferably in ireland, but shipping from england should'nt be 2 bad.. cheers men
January 5, 201114 yr Author sorry may have been the wrong phrase, i want to move up a jet size. i dont want to drill my own out, my bad haha
January 5, 201114 yr Moderator sorry may have been the wrong phrase, i want to move up a jet size. i dont want to drill my own out, my bad haha Jets are easy come by, I use motocarb they will post it to you. What size is it now?
January 5, 201114 yr Author standard, 210 i assume? to be honest i dont understand how jet sizes are measured. iv taken de cat out of the exhaust so i reckon jets would be a good next move.. ye no doubt id get them in the bike shop here, but id fairly pay for them 2, i just wanna get a few prices on the internet before i hand over mad money yeno urself..
January 7, 201114 yr First thing is to check if you are jetted ok now, the colour of the plug gives a rough idea, ideal is mid brown http://www.dansmc.com/sparkplugs1.htm If you want to be more specific e.g. if you think it is out at full throttle , then a plug chop will tell you , but it costs you a couple of new plugs No point re-jetting just for the sake of it , http://www.kawasakimotorcycle.org/forum/kawasaki-motocross-offroad/17227-spankeys-jetting-guide-info-2-stroke-riders-must-have.html http://www.thumpertalk.com/forum/showthread.php?t=538197 Bob
January 7, 201114 yr Author its hard t tell the bike goes tru plugs like a mad yoke, dis last ones held up pretty well tho so il check it out 2moro.. iv the exhaust gutted, i flowed the inlet ports and iv a knn style filter to go on aswell, surely a bigger main would be a gd step now no??
January 7, 201114 yr Moderator I wouldnt recommend a pod syle filter if thats what you are considering. More trouble than they're worth getting it set up right.
January 7, 201114 yr I wouldnt recommend a pod syle filter if thats what you are considering. More trouble than they're worth getting it set up right. +1 DTR's do not like K&N's. A pipercross or similar original foam style one works better IME. And what do you mean by "flowed the inlet" ?
January 7, 201114 yr Author idn men its all trial n error for me just took the dirty blunt edges off n smoothened dem down as best i could
January 8, 201114 yr idn men its all trial n error for me just took the dirty blunt edges off n smoothened dem down as best i could Inlet ports on 2-strokes are supposed to have a fine dimpled surface, much like a golf ball, which traps a thin layer or air on the surface which allows the air/fuel mixture to pass over it alot faster than it would with a smooth polished surface.
January 8, 201114 yr Inlet ports on 2-strokes are supposed to have a fine dimpled surface, much like a golf ball, which traps a thin layer or air on the surface which allows the air/fuel mixture to pass over it alot faster than it would with a smooth polished surface. Dead Right It is very tempting to mess with porting and exhausts , unless you are a skilled tuner you are more likely to lose power. Your efforts are best kept to keeping the bike in good order. Once you have done the standard de-restricting of a dt125 ,the next step is probably a pukka exhaust system like a DEP . After that I reckon there is no substitute for a bigger bike !
January 8, 201114 yr Author no iv taken the blunt face off the inlet n smoothened it into a point, its still as bumpy as it was. its definetly better im 18 now in a week or 2, time for de bigger bike... in 2 years. thanks to the restrictions in ireland.
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