Posted: 05:17 am Dec 28 2010
just bought both of them seperately on ebay, you need to change more things than the airbox and carb to get it running right after making such large modifications
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Posted: 08:01 am Dec 28 2010
i will not call it modification, rather swapping from the US model to asian model.
Posted: 08:49 am Dec 28 2010
You'd have to at the least re-jet the carb you put on. It's not plug and play after all. Hence your spooge and high fuel consumption.
Posted: 03:27 pm Dec 28 2010
I have a parts manual for the 1992 japanese sr model if any1 needs part numbers.
Posted: 06:16 am Dec 29 2010
can you scan in some of the important pages?
generator / timing
oil pump
carb / airbox
forks
generator / timing
oil pump
carb / airbox
forks
Posted: 08:02 am Dec 29 2010
38 bloody quid for the inlet
Posted: 11:36 am Dec 29 2010
..can of worms!!.........by the time you`ve finnished both you & your credit card will be exhausted! 
Posted: 04:12 pm Dec 29 2010
all i need to buy now is a needle jet :D, and make a blanking plate up for the 2-stroke
Posted: 08:30 pm Dec 29 2010
sight....i am betting you are not going to enjoy the new setup. but to each his own...good luck on the conversion.
Posted: 08:44 pm Dec 29 2010
Other than the fuel supply, Is the SR engine any different than the regular KDX?
Posted: 09:03 pm Dec 29 2010
Don't know if the porting is different, but I would imagine so.
Posted: 12:20 am Dec 30 2010
no, the porting is the same as the US model. just that there is no exhuast header on the front for aftermarket pipe. got to buy a separate header backet. the top head cover also got a temperture sensor built in. the left side cover resonator has got an extra outlet tube for spoo to drip out thats about all.
Posted: 07:20 am Dec 30 2010
surely saying that all the people with E models will be wanting to swap their bikes for my SR model.... more power is always better.KDXsg wrote:sight....i am betting you are not going to enjoy the new setup. but to each his own...good luck on the conversion.
Posted: 07:22 am Dec 30 2010
ive read elsewhere that the timing is different but am yet to check the fiche to see if we have any part number differencesKDXsg wrote:no, the porting is the same as the US model. just that there is no exhuast header on the front for aftermarket pipe. got to buy a separate header backet. the top head cover also got a temperture sensor built in. the left side cover resonator has got an extra outlet tube for spoo to drip out thats about all.
someone has fitted what must be an E model pipe to mine, 1 of the brackets does not fit just above the kickstart lever in which i am going to have to make a bracket to hold them inbetween. can you go into more detail on what you mean by "no exhaust header!"
i have no temperature gauge on my clocks...
Posted: 07:26 am Dec 30 2010
juliend wrote:Mmmhmm. And how to you figure on reconfiguring that pump accurately for the higher quantity of fuel and air? I know the pump on my old 71 has an adjuster, but I don't have any idea how you'd go about figuring how much more it needs to pump. Seems safer to go with premix. Maybe someone more familiar with the SR will know.moto_psycho wrote:nah, i could easily tap any old union into the new inlet stub, although i may decide to lose it anyway, god knowhere where im going to get these crazy dual throttle cables from
cheeky this post got away from me, if you take the side of the pump off there are marks for calibration, easy enough to just jack it up a bit, but i am still preferenced to running pre-mix, less **** to go wrong!
Posted: 07:27 am Dec 30 2010
Dodger wrote:I have a 1989 KDX200F1 - the Australian version of the SR model.
I replaced the tiny 28mm carby with the KDX 35mm carby and it required a new air box boot and inlet rubber to fit the larger carby. I also fitted the air filter fron the "E" series which required a new filter cage etc. This was in the days before EBay, so if I was doing this mod today I would just buy a complete E series air box off EBay. Much easier and probably cheaper as I used new OEM parts at the time! I had to open up the reed block insert with a grinder to match it to the larger inlet rubber, and I also did away with the oil pump and just run pre-mix. You will need to fit the single throttle cable from the E series.
Fitting this carby make a BIG difference in performance! Well worth doing.
(I've now fitted an RB carby so the old KDX goes even better!)
Cheers.
i like this guy better.
Posted: 08:09 am Dec 30 2010
the truth always hurt. 
write a ride report after you have done the conversion. meanwhile i go and take some pictures of my SR kdx to show the difference.
write a ride report after you have done the conversion. meanwhile i go and take some pictures of my SR kdx to show the difference.Posted: 08:47 am Dec 30 2010
yeah i definately will, i was going to retard the timing slightly aswell to put the power more up top for a bit more fury, but i'll wait until the carb is on and jetted right 1st 
never good to change more than a few things at once!!
cant wait to have the more power, that is why I went back to 2-stroke, 4-stroke power is so linear and boring, I had a drz400s before this, did everything to make it the 'e' model (up the compression, fcr39, bigger header, cams) and it was still boring as hell, sold it for £1300 and bought the KDX for £700 and i'm already far happier, its far more fun even with the girly 28mm carb.
never good to change more than a few things at once!!cant wait to have the more power, that is why I went back to 2-stroke, 4-stroke power is so linear and boring, I had a drz400s before this, did everything to make it the 'e' model (up the compression, fcr39, bigger header, cams) and it was still boring as hell, sold it for £1300 and bought the KDX for £700 and i'm already far happier, its far more fun even with the girly 28mm carb.
Posted: 11:39 am Dec 30 2010
Mmm. Yes, easy enough to turn the pump up. I said that. Not so easy to know if you've turned it up enough to get adequate oil to the main bearings. You could have it cranked to max and it still not be enough to cover the much larger intake system you are using. I guess when you spin a bearing, you'll know you didn't have the pump turned high enough?moto_psycho wrote:juliend wrote:Mmmhmm. And how to you figure on reconfiguring that pump accurately for the higher quantity of fuel and air? I know the pump on my old 71 has an adjuster, but I don't have any idea how you'd go about figuring how much more it needs to pump. Seems safer to go with premix. Maybe someone more familiar with the SR will know.moto_psycho wrote:nah, i could easily tap any old union into the new inlet stub, although i may decide to lose it anyway, god knowhere where im going to get these crazy dual throttle cables from
cheeky this post got away from me, if you take the side of the pump off there are marks for calibration, easy enough to just jack it up a bit, but i am still preferenced to running pre-mix, less **** to go wrong!
Do it!
Posted: 02:16 pm Dec 30 2010
Haven't got a scanner m8, which specific parts you need numbers for?