TRX250R.ORG
Workshop => Carburetor, Intake, and Exhaust => Topic started by: jcs003 on July 27, 2013, 12:19:58 PM
-
my current carb is not functioning correctly so im gonna try a 38mm airstryker.
i have s +4 stroke mild port stock jug at 66.75mm bore. 14.25 compression ration on 110 octane. rad valve, uni filter without lid (outerwears cover) ESR trx-6 pipe and silencer. ride trails and do some hillclimbs and im located in the northeast, in southwestern PA. i do not have the airstryker yet but would like to know how you guys have yours set or recommendations you have.
thank you for any help,
john
-
52 pilot, dgh second clip, 180 main. Pilot and needle should be close. Main will probably be fat but safe. Work your way down from there. Obviously all motors vary so this is just my recommendation.
-
thanks polonda.
john
-
Just curious, what carb are you currently running on it?
-
Just curious, what carb are you currently running on it?
lectron 38mm.
john
-
What do you use for 310's an up Dan? 39 bored?
-
thanks dan. it is in the mail and i cant wait to get the power back,
john
-
When you buy new, the carb will have like a 60 pilot in there. My first carb I put on ran like buaa! Kept fouling plugs. Put the 52 pilot in and been happy for many years. I have gotton 6 new carbs since then. 1 for every R. First thing I do is put in the 52.
-
When you buy new, the carb will have like a 60 pilot in there. My first carb I put on ran like buaa! Kept fouling plugs. Put the 52 pilot in and been happy for many years. I have gotton 6 new carbs since then. 1 for every R. First thing I do is put in the 52.
thanks for the tip tony. i am hoping it comes with extra jets.
john
-
i might need to add some length to the big end of the carb to meet the intake tube. who makes a carb-intake adapter?
john
-
Just curious, what's your setup? Should fit together like a glove. ESR also makes a sleeve they can press onto the front or maybe back of the carb, it's pretty slick. Check out Troy's carb he is selling for an idea of what I'm talking about.
its a 38 mm lectron, boyesen rad valve. here is a couple pics:
[ATTACH=CONFIG]1087[/ATTACH][ATTACH=CONFIG]1088[/ATTACH][ATTACH=CONFIG]1089[/ATTACH]
john
-
well, a 48 pilot wont let it idle so im going to try a 42 pilot. sound ok?
also, has a 170 main, DDJ needle and if i remember correctly a #7 slide.
thanks for your input.
john
-
thanks opel.
john
-
so where are you at now with your pilot and air screw setting?
-
so where are you at now with your pilot and air screw setting?
i tried a 42 pilot and still wouldnt idle. the moved the air screw in and out without a change. just for s&g i even took the air screw out and tried to start it, and nothing.
i did a leakdown test and it help 6psi for 30 minutes or so before it started to drop a lil pressure. following the leak test i put on the old leaky lectron and it started on first kick and idled perfectly.
john
-
so it will not start? as much as I dont like start fluid maybe try a little to see if it will fire, once you have it running you can determine if the pilot is to big or to small by the amount of turns on the air screw it takes to make it run properly. air screw screwed almost all the way in means the pilot needs to be bigger, 3 turns out means you need a smaller pilot
-
Man I sure would've thought Polanda's suggestion would be real close. Im assuming the Lectron uses a different cable than a Pwk,and if I remember right you bought a new cable with the carb. Do you think it could be a simple cable adjustment needed to make it idle? I know you said you could adjust and get it to idle.
-
it actually shouldnt need the cable to idle. i am just going back to the lectron and will sell the airstryker at a loss. now i know why some are building EFI hybrids.
john
-
Even though it is a "new" carb, try taking it apart and blow it all out. Cap sealing?
-
Dumb question, how are the reeds?
reeds are good. it will start and idle great when i put the lectron back on. it is the airstryker that is the issue.
john
-
come on now dont just give up, struggling and figuiring it out is how you get smarter.
-
come on now dont just give up, struggling and figuiring it out is how you get smarter.
Yeah John, I have had problems my new carb before. I swear the idle adjustment screw was not working on my new 39 PWK. I remember you saying the same thing. That baby had to be almost all the way in before it would idle. Thought it was strange but it worked.
-
thanks for all the support fellas. i will take another shot at it.
john
-
My 39 pwk is also almost all the way in...I had to cut some of the spring off.
-
My 39 pwk is also almost all the way in...I had to cut some of the spring off.
that solved it. it runs! thanks alot everyone. i really appreciate it.
john
-
that solved it. it runs! thanks alot everyone. i really appreciate it.
john
Now you mention it there was a thread on .net where people were buying a longer idle screw for this purpose.
-
Now you mention it there was a thread on .net where people were buying a longer idle screw for this purpose.
Is the metal version longer? I remember karla saying something about one available bit never looked into it.
-
Is the metal version longer? I remember karla saying something about one available bit never looked into it.
Yeah, thats where we all stopped reading. LOL Yes the metal one had the same thread pitch but was longer in length so it would not bottom out. You had to cut the spring off and that would not have to be done with the longer screw.
-
this carb certainly woke up this engine. it pulls so much better, i can ride a couple gears higher and it will pull the front wheels in 5th. it was actually worth the aggervation.lol
another thing; couldnt get hotter than 130* or so. thinking there is still power available.
john
-
Good deal!!
-
Is this alon the 38 Stryker carb, if so a 52 pilot and the 180 main to start and go from there
-
well, the quad runs much better now. however, i had it wheeling yesterday to the point it broke off the grab bar and dragged me a 20 or 30 feet.lol. anyway, after i got it back on 4 wheels it was very difficult to get started again. can someone tell me why this occurred? thank you.
john
-
well, the quad runs much better now. however, i had it wheeling yesterday to the point it broke off the grab bar and dragged me a 20 or 30 feet.lol. anyway, after i got it back on 4 wheels it was very difficult to get started again. can someone tell me why this occurred? thank you.
john
Glad you are happy with the carb now. I figured you would be once you got it set up and working right. It probably leaked fuel out of the overflow when you put it on the grab bar.
-
Hey John. I just got my 275 PC2000 running last night and had the same issue getting the thing to start. I took out all the jets and cleaned it again and then left the choke off and 1/8 throttle and presto. My pilot is 55 and the main is 170. The air fuel screw is at 2 1/2 turns out. That is what the PO was running when he sold it to me. The plug looked good when I got the engine, so I am just gonna run it for a while and then adjust if I need to. Glad you got yours going. Does anyone have a new bowl seals for these or the screws?