LT racing jet kit report...

[skid jackson]

actually it is post #27 in this thread!! page 5

[GG27]

Hi again!

After trying many setups on my EC250 '08 I came to the following setting:

LTR-0 #3
PJ 42
MJ 180
AS 1 1/2
Slide #7
Sea Level 60 to 90 F
LTR PV cover

Bike run best ever with really smooth of idle power and screems to the moon with near excellent throttle response and control. After running for 2 hours on mixed woods and mx track there is no spooge at all and the plug is a light tan color!

I use the 1369D at #2 when weather is cooler but seems just too fat compared to the LTR but has nice smooth power as stated in this post.

Yesterday I got a #8 slide (as you have suggested), and swapped it to see the difference. I had to go down to 3/4 to 1 out on the AS, but bike was a bit lean-weak off idle, should I go to the suggested 45PJ with AS 2 out or just stay with the #7 slide 42PJ? (I'm just too lazy to change out the PJ!)

[GG27]

Also thanks to Loosenut and Widebear for their suggestions.

[GG27]

Well, I put in the 45PJ and the bike was sputtering off idle with the #7 slide and AS at 2 1/2 out so I swapped in the #8 slide and bingo!

Clean off idle pull and the mid-range lean spot disappeared. Really happy with this jetting! Smooth and strong throughout the board with high overrev.

Now I'm waiting for the MC head to come from Spain just to increase the bottom end. I'll inform you with a ride report.

[SECRET_AGENT_BOND]

If anyone is looking for CCK needle, take a look on N85E needle from KTM 250-300 sx/exc year 98 . Same needles, but KTM´s is OEM

[GMP]

Sorry but that is incorrect info. The CCK is a C series single taper, the N85 series a triple taper KTM OEM needle. I have seen very rough comparisons of these needles in a table on the Sudco site, but its meant as a very rough place to start when going to a single taper needle from triple taper. I suspect this is where you got your info.

I have these and many other needles, and I assure you they are quite different. If you doubt me, get the JD Jetting spreadsheet and plot the two needles, you will see for yourself.

[Radbuster]

Hi guys,

I have been running a CCK needle for a while now on my EC300 07 with an 07-08 FMF Gnarly, but will switch back to the LTR.

It runs very well but fuel economy is very bad. In tight enduro with mostly low to mid and very little main jet I can run it on no less than 4 liters per hour. On an MX track it can drink the same but in half an hour . Riding behind my own bike I can see the blue smoke, but there's no spooge buildup or noticeable load-up. I have tried to lower the needle and go smaller on the main jet, which helped a little bit, but the problem remains.

The LTR has amazing fuel economy and I can get it to run on about 1.5 liters per hour when riding tight woods. I know it runs fantastic from low to mid and hopefully I can jet it to run well on top too. If anything its nice to know that Les is a quality guy that can give good advice.

Final setting with the # 7 slide is, summer: 42PJ 1.0 turn, CCK #2, 175MJ. Winter: 42PJ 1.25-1.5 turns, CCK #3, 178MJ.

To the best of my knowledge the bike is running well and pretty well set up and with the air filter decently clean.

[SECRET_AGENT_BOND]

Originally Posted by GMP

Sorry but that is incorrect info. The CCK is a C series single taper, the N85 series a triple taper KTM OEM needle. I have seen very rough comparisons of these needles in a table on the Sudco site, but its meant as a very rough place to start when going to a single taper needle from triple taper. I suspect this is where you got your info.

I have these and many other needles, and I assure you they are quite different. If you doubt me, get the JD Jetting spreadsheet and plot the two needles, you will see for yourself.

Yes,you´re right and I have ordered wrong needle This table from sudco is in many sites, so I supposed that´s correct info... Never mind, I´ll be first one who tested this needle in Gasser

[iancp5]

Pobit,

Sent you a PM. Was wondering if the CCK would work (i.e. give a nice smooth curve) on a 200? Currently using an N1EE.

Thanks,
Ian.

[pobit]

The CCK#3 is too lean for the 200. The 200 needs more fuel from mid to top.
You can use a C taper needle but it will need to be run in the richer clip position #4. This richer clip position will cause the off idle to be too rich so a leaner straight diameter is needed to compensate. A good setting for a 200 at sea level 65 degrees would be 45 pilot, CCL#4 with a 180 main. This jetting will be torqy with a smooth power band. If the rider is a novice and needs cleaner jetting to prevent fouling, 42 pilot CCL#4 180 main will run cleaner at off idle but will not have as much torque off the bottom. The 42 pilot will also work better in hotter weather if you run out of air screw adjustment range with the 45. Dave