Needle and washers from my carb, maybe I have the 22 cent mod with klx needle? - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 8 Old 03-21-2017, 03:27 PM Thread Starter
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Needle and washers from my carb, maybe I have the 22 cent mod with klx needle?

Thinking there was no washers and going to the hardware store to buy 2 #4 stainless washers I realized the needle did have 1 but not sure if it's the correct one. While doing some research I saw a post where another klr guy took apart his carb and people commented that the needle(exactly like mine) was the klx needle. Can someone tell me if I have the klx needle? Also when I bought 2 #4 washers(on the right of the needle) they look different than the 2 on the left. I tried matching the washer that was already with the needle and found a 3mm washer that seemed to work.

Edit: Watched the video below and looks like I have the klx needle but the video has the washer on top. Looks like to prevent play when force is applied from the tip of the needle. It also shows the C clip on the number 2 groove. Sounds like mine was set to run really rich I think since I'm like 2 notches down from that at number 4 groove. I think there was 3 empty grooves above and below where mine is now. I need to check and see if there is a number on my main jet and see what is in there. I bet it's different than 148(place your bets)

Edit again: Ok man that was tough to try to take a pic of the main jet. It's 140. I don't have a 142 like in the video, but they put the clip a couple notches more raising the needle quite a bit. I just don't trust whatever is there. Anyone recommend a groove with a 140 main jet?

Attached Images
File Type: jpg needle washers.jpg (172.1 KB, 9 views)
File Type: jpg number 4.jpg (485.2 KB, 7 views)
File Type: jpg 17454989_10155169370733464_629957664_o.jpg (84.3 KB, 9 views)

Last edited by jeffrimerman; 03-21-2017 at 06:30 PM.
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post #2 of 8 Old 03-21-2017, 07:07 PM
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Join Date: Nov 2009
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jeff, Grab your magnifying glass.
Look very carefully below the circlip grooves, if it is a KLX650 mid-range jet needle it will have a alpha numeric # on it! "N1TB"

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 84,000+ miles & counting
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post #3 of 8 Old 03-21-2017, 07:18 PM
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jeff,
I really don't have any experience with the KLX650 needle.
Part of the problem with helping with jetting is No One knows at what altitude you live/ride and what temperatures you may ride in.

Keep searching, the info you desire is out there!

pdwestman
Modify at "YOUR OWN RISK"!

Still riding my 1987 KL650-A1. 84,000+ miles & counting
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post #4 of 8 Old 03-21-2017, 11:52 PM Thread Starter
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Quote:
Originally Posted by pdwestman View Post
jeff,
I really don't have any experience with the KLX650 needle.
Part of the problem with helping with jetting is No One knows at what altitude you live/ride and what temperatures you may ride in.

Keep searching, the info you desire is out there!
Thanks, no worries. I kept reading and found the instructions for the klx kit. It covers what groove the clip should be on and what main jet I should have. I'll need to order a set anyways in case I swap exhausts etc. I saw one set from China it had a bunch I don't need but it did have a 145 and 150. I probably just need the 145 since I put on a Jardine slip on. That combined with the snorkel removed means I could be too lean. Who knows. Let's see how it runs when I go up the hill soon hopefully. It started right up tonight when I put it back together. No leaking gas wooo hooo!!
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post #5 of 8 Old 03-22-2017, 12:16 PM
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FWIW;

- don't use chinese jets; real KH mains only!
- be aware that different jets are numbered differently and cannot be directly compared by number alone.
- follow EM's instructions; they are spot on.

I have bone stock internals and followed the EM kit instructions, I have 142.5 KH mains on the second clip position with no shims under, 2 turns on the fuel screw, stock pilot jet. Bike has a unifilter, snorkle-ectomy and 4-1" holes in the airbox lid; exhaust is a stock Gen2 header with a LeoVince X3 slip-on, Elevation is typically between 2,000 and 8,000 ft and I don't ride below freezing. This setup has been checked with an O2 sniffer by others and is pretty much spot-on. I didn't bother drilling the slide; that affects throttle response only and has nothing to do with jetting.


Hope this helps,
Dave
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post #6 of 8 Old 03-22-2017, 01:15 PM Thread Starter
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Quote:
Originally Posted by DPelletier View Post
FWIW;

- don't use chinese jets; real KH mains only!
- be aware that different jets are numbered differently and cannot be directly compared by number alone.
- follow EM's instructions; they are spot on.

I have bone stock internals and followed the EM kit instructions, I have 142.5 KH mains on the second clip position with no shims under, 2 turns on the fuel screw, stock pilot jet. Bike has a unifilter, snorkle-ectomy and 4-1" holes in the airbox lid; exhaust is a stock Gen2 header with a LeoVince X3 slip-on, Elevation is typically between 2,000 and 8,000 ft and I don't ride below freezing. This setup has been checked with an O2 sniffer by others and is pretty much spot-on. I didn't bother drilling the slide; that affects throttle response only and has nothing to do with jetting.


Hope this helps,
Dave
This is great info thank you. I backed the screw 1 3/4 turns, so 2 I will do. Your set up is pretty much like mine with modded intake and slip on. I'll see about ordering the 142.5 jet. The klx instructions did mention to use at least 142.5. I live at more like 800 ft elevation but we would ride up to 5,000 feet so 145 is probably fine too. I think the higher one goes the small the main jet. Back to your mention slot 2 on the needle. Maye I'll see how mine rides and then adjust the slot and the fuel screw. Sounds like yours isn't running too lean.

Last edited by jeffrimerman; 03-22-2017 at 01:18 PM.
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post #7 of 8 Old 03-22-2017, 01:22 PM
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post #8 of 8 Old 03-22-2017, 04:59 PM Thread Starter
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So much more power. Sounds good runs strong. I'm going to get at least a 145 for the main jet. The only issue I'm noticing is the idle is wondering. When it's totally warmed up it seems to go from 1400 to 1900. If I adjust it down to 1100 its ok then wants to sputter out. Could be a vacuum line maybe. There is one I think on top close to the intake so maybe I test it. The system is pretty basic. Maybe I need to adjust out 2 turns now. I'm not sure if my idle jet is stock. I didn't check for any numbers on it =/. It's ok, it's most ly at 1400.
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