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Post by geh3333 on Jul 7, 2014 18:30:58 GMT -5
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Post by jerseyboy on Jul 7, 2014 18:35:19 GMT -5
I bought my gears off that guy,,they came out of the NYC package so i thought they might be fake,,he said they are the biggest distributor of NYC in the US so why would he sell a fake,,I was also looking at that clutch today,,but I dont like the blue springs,,and alley said NYC takes their own spring so I would have to get the black 1K springs also...and the NYC bell I assume..If NYC makes 1K springs I will get that clutch and the NYC bell,,I like their stuff...
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Post by blarboose on Jul 7, 2014 18:40:27 GMT -5
OK! Update time! Sorry I didnt get to this yesterday, but I got caught up helping some friends out with something.
Anyway, I adjusted the air mixture screw to richen it, and it DOES seem to have made an improvement. Now, itll get all the way up to 6K RPMS before it starts to stumble, and after that itll sort of swing back and forth between 6K and approximately 5700 RPMS. If I actually take it to WOT, it stumbles much worse and falls down to maybe 4800 RPMS, before climbing back up to maybe 5200 or so.
I turned the air mixture screw a full 900 degrees counter clockwise (2 and a half complete turns) so the mixture cant get much richer than it is now. Therefore, Im guessing maybe the fuel pump is unable to keep up at WOT? What do you guys think.
Also, I did adjust the idle screw too, so its idling at about 2200 RPMS or so. The wheel does still spin at idle a little bit when its propped up on the center stand, but if I turn the idle down much lower Im getting into the territory where it likes to occasionally stall out on idle. It seems to like it at around 2k or 2100 minimum. Anything lower and its mostly fine, but will stall out every once in a while.
So! What do you guys recommend? New fuel pump? Im also looking into a new air hose, as the current one gets significantly skinnier in the middle than it is on either end, and I figure that may be limiting air flow.
Id say its maybe approximately 2" in diameter where it attaches to the carburetor, 4" where it attaches to the air box/air filter, and it narrows to maybe 1" or so in the middle. (These are my best guesses by looking at them, so they may be off a bit.)
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Post by geh3333 on Jul 7, 2014 18:44:59 GMT -5
The blue springs are 1k with ncy that is the three rpm clutch springs . I bought the 3rd generation clutch assembly from scooter elements about 3 yrs ago and my 1500 clutch springs were orange . Now I see all most are yellow . I think the black main is 1500 rpm ?
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Post by jerseyboy on Jul 7, 2014 18:46:52 GMT -5
Wonder what size main jet you have in it?
I bet its super lean from factory with a 103-105...might be happier with a 110-115.What does the plug look like,,really light colored?
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Post by geh3333 on Jul 7, 2014 18:53:32 GMT -5
The blue springs are 1k with ncy that is the three rpm clutch springs . I bought the 3rd generation clutch assembly from scooter elements about 3 yrs ago and my 1500 clutch springs were orange . Now I see all most are yellow . I think the black main is 1500 rpm ? Also my old stock rpm springs fit my ncy clutch . They each had the same amount of coils . |
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Post by blarboose on Jul 7, 2014 18:56:48 GMT -5
Wonder what size main jet you have in it? I bet its super lean from factory with a 103-105...might be happier with a 110-115.What does the plug look like,,really light colored? The plug was replaced literally not even a week ago, so thats brand new. The one that was in it before that, I have no idea how long it was in there, but it was basically blackened completely. |
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Post by jerseyboy on Jul 7, 2014 19:06:28 GMT -5
The blue springs are 1k with ncy that is the three rpm clutch springs . I bought the 3rd generation clutch assembly from scooter elements about 3 yrs ago and my 1500 clutch springs were orange . Now I see all most are yellow . I think the black main is 1500 rpm ? Also my old stock rpm springs fit my ncy clutch . They each had the same amount of coils . Thats cool bro,,so I will get the blue NYC clutch and wont have to worry about springs,,I saw the bell for $39 free ship also,,thanks man!! Sorry for the derail on the thread,,I think this guy is running lean,,but he said his old plug was black,,too much fuel will cause a top bog also...do you see any black smoke coming out of the pipe when you nail it from an idle on the center stand?? |
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Post by geh3333 on Jul 7, 2014 19:29:54 GMT -5
I know what u mean he said he richened it u and it ran a little better , but the plug is black? I would also say it's to rich and bogging because of this . Also isn't the air fuel mainly for idle ?
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Post by blarboose on Jul 7, 2014 19:39:57 GMT -5
I know what u mean he said he richened it u and it ran a little better , but the plug is black? I would also say it's to rich and bogging because of this . Also isn't the air fuel mainly for idle ? No no, the OLD plug was black. The one I took out and replaced like a week ago. I have no idea how long it had been in there though. This is also before I started messing with the adjustment screw. The plug that CAME with the bike (which could be like 5 years old for all I know) was black when I took it out. This plug has been there for god knows how long, and has been there long before I started messing with the screws. The plug that is CURRENTLY in the bike is brand new. Its less than a week old, and I would assume its still (relatively) clean. |
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Post by jerseyboy on Jul 7, 2014 19:40:27 GMT -5
Yeah,,
I thought the air/fuel was just for the idle and maybe how the motor takes the fuel off idle,,the top is the main jet..I remember having an old Triumph with a clogged pilot and the motor ran like crap throughout the entire power band so you never know..
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Post by blarboose on Jul 7, 2014 19:43:35 GMT -5
Yeah,, I thought the air/fuel was just for the idle and maybe how the motor takes the fuel off idle,,the top is the main jet..I remember having an old Triumph with a clogged pilot and the motor ran like crap throughout the entire power band so you never know.. The air/fuel mixture is not for the idle. There is a seperate screw for that on the opposite side of the carb. The idle screw controls how far open the air intake stays when youre not using the throttle at all. More air = higher RPMS, so you can adjust the idle screw to change how many RPMS you idle at. The air/fuel mixture screw contains how much gasoline gets mixed with the air as it comes through the carb. |
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Post by geh3333 on Jul 7, 2014 19:47:02 GMT -5
Yeah that's right the air fuel on these carbs for the pilot mixture , how long exactly has the new plug been in " sorry if I missed it " I would check it , if you are running rich it will still show a black coating " it won't take long "
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Post by geh3333 on Jul 7, 2014 19:50:40 GMT -5
Yeah,, I thought the air/fuel was just for the idle and maybe how the motor takes the fuel off idle,,the top is the main jet..I remember having an old Triumph with a clogged pilot and the motor ran like crap throughout the entire power band so you never know.. The air/fuel mixture is not for the idle. There is a seperate screw for that on the opposite side of the carb. The idle screw controls how far open the air intake stays when youre not using the throttle at all. More air = higher RPMS, so you can adjust the idle screw to change how many RPMS you idle at. The air/fuel mixture screw contains how much gasoline gets mixed with the air as it comes through the carb. The screw your talking about is the throttle screw not the idle screw , it has no effect on the air fuel mixture . The airfuel only controls the mixture for the pilot not the main jet . |
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Post by geh3333 on Jul 7, 2014 19:54:35 GMT -5
Sorry about that yes the throttle screw is also called idle screw by others because it controls the idle , but like I said it does nothing to control the air fuel and the airfuel screw is only for the pilot not the main jet . So it mainly controls idle .
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