#1101
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Exactly ^^^
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#1102
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Thought we agreed to buy it back from you, replace it, or work it out.
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#1103
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Quote:
Stock 2009 KTM 300 XC The 38mm ASII was set with a 170 main jet, N3CJ needle 5th clip position, 38 pilot, air screw 1.5 turns out. The 36mm ASII was set 168 main jet N2ZW needle 4th clip position, 38 pilot, air screw 1.75 turns out. The SC's we used factory settings. Power valve settings for all tests were; green spring half a turn in. You will note that the 38mm Keihin builds almost identical power as the 36mm SC on this bike. I've been cautious with posting our own in house dyno charts but theses tests from yesterday show what DirtRider was saying. They also reported they were using KTM recommended settings and listed them in the article. Last edited by Corey; 08-15-2013 at 10:10 PM. |
#1104
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Last time I checked my pipe does not have a EGT fitting....no dog in this fight for me...yet.....Isn't EGT monitor a advantage?
My buddy runs shifter carts and EGT monitoring plays a pretty vital role in jetting for him. Please expand on this subject..... THANKS Quote:
__________________
Rick 99 EC 200 06 RM 250 AMA D36 375X OTHG 375S ***Thanks for the support : Twin Air /O'Neil Racing / Race 100% / Matrix Concepts / ODI / Mika Metals |
#1105
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Well I put another 150kms or so on mine. Many hours of riding various local terrain. I don't know what it is. I just can't get consistant results. Its like the carb is super sensitive to the bike (or air filter). The start of the ride it was good, very good. A bit in a went one click leaner and rode it like that all day. It ran like a champ most the day like this. Torquey off the bottom, but clean, and then quickly built into a nice crisp pull from mid to top. Then later this afternoon running it home it decides it wants to play burbly bottom end again, still alright torque but likes of 4 stroking and a definite lack in crispness to put it on the pipe. When you'd get it singing it felt like you had to work hard to keep it there too (hard when you're tired). So when I got home, just out of curiosity, I went one click leaner again. Low and behold it cleaned right up and felt good again. *scratches his head*. It was a dry dusty day, but I was either out front leading, or well at the back of the pack when the dust was out. I know the air filter is dirty but I doubt it will be totally caked. Whats up?
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#1106
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The "jetting" changing throughout the day makes me wonder if you have a sticking vent valve (if I understand the design correctly). I. E. you are not getting the air density correction that you should be getting as the conditions change throughout the day.
__________________
Newest Spanish Girlfriend: 2011 300 Six Days My Daughter is a U.S. Marine |
#1107
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Quote:
I think I have two possible causes since the "one click leaner" solution doesn't point to float problems. Unfortunately you have to remove the slide for a check. 1) Look at the flat part of the rod and check if is parallel to the slide surface; additionally try to turn the rod left and right and see how much deviation you can get - it should be very little. I got a faulty D-washer for indexing the rod with my R080 (almost 45? deviation in one direction) and have been making my own D-washers which are milled on the outside and use a set screw for perfect alignment with the rod. A rod that is not close to perfectly aligned will cause differences in fuel metering. 2) Take a flat blade screwdriver and try to operate/turn the clicker mechanism on top of the slide. There should be no free play in the adjuster, but a solid feel against the locking mechanism. If there is free play, vibration can move the adjuster/rod enough to cause fueling inconsistencies. If your mechanism is still working you can try to screw in the small black set screw on top of the adjuster. This should tighten up the free play - if not, it's broken like has been discussed in this thread already. Have fun :-)) Michael |
#1108
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if i see corect the dyno chart of sc give 5hp more from keihin pwk this can have with exhaust very easy doma can add more hp or try tillotson carb with hi end low abjust on the size of carb for easy abjust
__________________
GasGas EC 300 2004 |
#1109
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Michael has the answers, as always! You're the man!
I can tell you right now from memory that there is some definite play in the D washer. Not 45 degrees, but enough that the MR can turn a bit to each side. I know this because I wondered about it when I had the MR out for the lapping. Thought to myself "thats a bit of a sloppy finish". Issue being I don't have access to milling machinery to make up my own. Its very possible it has rotated a bit during running, especially after making an adjustment. I'll also double check the clicker, but am pretty confident its firm in its engagement from one click to the next. I've already been through all of its parts with it having faint, barely feelable clicks, and poor engagement initially. For what its worth, the air filter has its fair share of dust caked to it too. |
#1110
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Michael Last edited by drehwurm; 08-17-2013 at 02:34 AM. |
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