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Running like crap


db25

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Mods are the following. Tors has been removed, k&n filter with pro flow intake. the bike hasn't been jetted for the k&n. I just recently bought this bike so I don't know much about it, what I do know is it will not idle, when its in neutral and you give it some throttle it don't want to rev up like it should. When your riding the bike it don't really want to hit the powerband in the lower gears like it should and it does decent in the higher gears but not great. Whats going on.? Is it all in the jetting since its never been done and now it has a k&n on it? If so please explain that to me cause I would think that would make it run lean but its not feeling like that, it just loads up real bad. Could it be the reeds? Do I have one broke? Should I flip them around? if I jet it what size should I go with? Main? Pilot? Needle clip position? I'm around 800 ft elevation. Any help on this would be great, I could use the advice. Thanks

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What jets are in it now? Did u put the k&n on? If so, how'd it run before you did that? And are u using the airbox lid still?

 

Does it have a parking brake, and a wire coming from the park brake handle?

 

Did u do the tors removal? Are all associated wires clipped and taped/secured well?

Edited by Banshee Chad
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Stock pipes, I didn't put the k&n on.. Airbox lid is on still. I can't say anything about how it ran before the k&n, its ran like this since I got it. There is no parking brake lever on the handlebars but I don't know if anything has been unhooked or the lever its just missing, how do I check that..? About the tors.. Yes its unhooked, is it unhooked right? I have no clue it was done when I got it? I do know there are all kinds of plugs hanging around the motor not taped up and they aren't cut, they are just unplugged hanging there. I assume those was part of the tors system but I have no clue.. How do I know if the tors its unhooked right or if one of those plugs just hanging there is causing a problem.?? thanks guys

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Oh and you asked what jets are in it now... Stock size jets is what the Guy told me when I bought it. I asked him if it was jetted since it had a k&n on it and he said no. so whatever stock jets are is what I have I guess. I haven't actually looked to see though.

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Well, first is start with taking apart and cleaning the carbs.. they gum up.. do them one at a time so u don't mix up parts. And take notes of ur jets and needle position.

 

If that doesn't help (and I'd do this anyways even if not the prob) is take off all ur plastics, and tank so u can see the wiring harness good. Then cut off all the clips that aren't hooked to anything and tape them up correctly.

 

There is a image on here somewhere of the wiring harness all laid out and labeled. So u can see what plugs go to tors and such so u can make sure they are gone right. Also make sure the black box relating to the tors is unplugged and gone (its mounted to frame under tank).

 

If u do all that and it don't run still, let us know.

Edited by Banshee Chad
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UPDATE.. I bought some exhaust fmf sst exhaust with power core 2 silencers, so yesterday I pulled the carbs to clean them but they looked spotless inside. I noticed my jets was 25 pilot, 200 main. So I went to the local dealer to get some different jets so I could throw on the exhaust. All he had was Mains he would have to order the pilot jets. I went ahead and got 270 main jets and went home and put them in, made sure the carbs was synced, put it all back together. and it ran so much better it still won't idle but I'm thinking that will change when I go from a 25 pilot to a 27.5 what do you think..? Now my current setup is tors removed, pro flow intake k&n filter with air box lid off, fmf sst exhaust with 270 main, 25 pilot and 2 turns out on the airscrew. What should I do to get it to idle and have a little more bottom end cause right now its kinda boggy in the bottom end until it hits the powerband. I'm thinking just change the pilot jet but what about the needle clip.? Where should I position that at. Thanks

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Stock pilots are fine with those pipes. Turn the air screw in if you think its lean on bottom. Actually that main sounds lean to run without a lid. You may need to put the lid back on (no snorkel) and see if it gets better.

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Okay, I'll try that next. I not sure on what exactly I need. I just know that I've been told by more than one person to go 270 main 27.5 pilot and no airbox lid so that was the direction I was headed in. you think I need to put the lid back on.?? And I won't have to change my pilot at all..?? what about the needle clip position? I've asked about the needle clip several times and I can't ever get a answer. Thanks

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Okay, I'll try that next. I not sure on what exactly I need. I just know that I've been told by more than one person to go 270 main 27.5 pilot and no airbox lid so that was the direction I was headed in. you think I need to put the lid back on.?? And I won't have to change my pilot at all..?? what about the needle clip position? I've asked about the needle clip several times and I can't ever get a answer. Thanks

 

What is the needle clip position now? Try to lean it one (clip towards blunt end, it lowers the needle)

 

How do the plugs look? If tors are removed, are the idle screws installed?

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Needle clip was in the middle position. the tors has been removed but the idle screws was never installed. haven't checked the plugs since it was jetted cause it hasn't been rode really. Just a little in the yard but it was a big improvement over how it was before, I mainly just messed with it in the driveway trying to get it to idle.

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Needle clip was in the middle position. the tors has been removed but the idle screws was never installed. haven't checked the plugs since it was jetted cause it hasn't been rode really. Just a little in the yard but it was a big improvement over how it was before, I mainly just messed with it in the driveway trying to get it to idle.

 

Well ull need the idle screw kit to do it right. Otherwise you can adjust the idle with the throttle cable (nut wheel where cable goes into throttle housing on handle bars)

 

Once its idling... Then slowly give it some throttle and see where its loading up or bogging...

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