The 450 and 510 and becoming more popular and I think we all see the same questions being brought up. I also think if we have a Jetting Database this will help tremendously :thumbup:
I will post my Jetting later tonight.
Jetting should be recorded the same way by every SM junkie including Year,Alt, Mods, mj, pj, lj, air screw, and etc.
This way we can all help each other get the most out of our machines.
Let me know what you all think and maybe the MOD can get a sticky for us here :clap:
Thanks
Richie
thirty whats ur alt and temp. if close to mine then go with that. It runs ans starts awesome everytime, thats why I am scared to install the JD jetting it i have lol ! Why mes with something that aint wrong.
ok sounds good. Let me know I have the same setup and scared to install it for the same reasons u have. We seem to be same alt just what temps are u riding in? I want to install the JD jetting so bad. If both of us dial in our bikes it will be so helpful for the rest of SMJ with 450-510's
I bought my '06 husky sm610 used about three weeks ago. came with a leo vince full ti exhaust and jetting done by the dealer that the guy bought it from new. found the paper for the jetting instructions and this is what the dealer has written down that is supposed to be in it. main jet sounds really big but i dont really know if thats just me.
Main - 202
Pilot - 42
Needle - Red
Clip Position - 5th
Leak Jet - 70
Fuel Screw - 2 and 1/4th
Starter Jet - 85
I bought my '06 husky sm610 used about three weeks ago. came with a leo vince full ti exhaust and jetting done by the dealer that the guy bought it from new. found the paper for the jetting instructions and this is what the dealer has written down that is supposed to be in it. main jet sounds really big but i dont really know if thats just me.
Main - 202
Pilot - 42
Needle - Red
Clip Position - 5th
Leak Jet - 70
Fuel Screw - 2 and 1/4th
Starter Jet - 85
04 510
-sea level (below at times when I run it at Richmond.... ) to maybe 400 feet so far.
-Completely stock setup for 04. That means competition flow through style muffler and no emmisions to need removing. The setup is dead stock other than the jetting.
-Bumped the main jet to a 190 and running the rest stock. It could likely use a lift of one slot on the needle since a few traces of lean shows up around idle and low throttle settings at lower RPM's like when cruising out to the track area. On the track it pulls strongly at all RPMs I'm using and doesn't show signs of any lean transition issues so I haven't bothered with fixing the lean issue when in the pits.
I tried the 180 and 185 and the bike was definetly running lean up top. Tested using the "roll off slightly from WFO and see what it does" method of looking for a little surge ahead to signify running a hair lean. The 190 seems rock solid for me.
I'm on par with the last guy, the rest of you make me feel good. Since my jetting is richer than all other 450's and some 510's! I have an '05 450 and when stock was running:
@ 800ft elevation in summer (like 90F)
185 main
50 pilot
Needle - one clip above middle (I move this when it's colder)
Air screw (or fuel, whatever) 1 3/4 turns out
I put a pro-circuit muffler and K&N intake on and now run:
185 main
50 pilot
Needle - one clip below middle (I move this when it's colder)
Air screw (or fuel, whatever) 1 1/4 turns out
This came with much pain, trial-and-error, and looking at spark plugs religiously. She is runnin like a dream. At one point I was up to a 55 pilot, but got some popping on decel, that was obviously too big. Also, if I go just one clip leaner on the needle, I start to get grey/white-ish plugs. So, I'm confident it's perfect for my bike. Did I mention she starts first or second kick every time (Except when hot of course!!!), usually without the choke! Maybe my ports just flow better than you lean guys (lucky me).
06 450 --- ~70 degrees @ sea level
thick o ring
full FBF exhaust
Sealed Exhaust
jd kit
180 main
45 pilot
Needle Red
clip 5th position
1.25 to 1.5 turns out
stillllll snap crackle pops on decel....
i have trouble believe that its not possible to get it to run w/o any pops on decel. I've tried using both a 175 and 185 main, neither with any success. would messing around with the pilot help
06 450 --- ~70 degrees @ sea level
thick o ring
full FBF exhaust
Sealed Exhaust
jd kit
180 main
45 pilot
Needle Red
clip 5th position
1.25 to 1.5 turns out
stillllll snap crackle pops on decel....
i have trouble believe that its not possible to get it to run w/o any pops on decel. I've tried using both a 175 and 185 main, neither with any success. would messing around with the pilot help
Mine pops on decel too (from high rpm usually not but always on low rpm). I don't know my jetting since the bike runs fine, starts fine and doesn't do anything funny when riding it. There's one problem though, I'm getting this weird studder at around 3800-4300rpm on like 1/8 throttle riding at constant speed. The higher the gear, the worse the studder is. Is there any way I can cure this? It is very annoying as I only can ride at certain constant speeds and in city traffic that's not very convenient. The studder 'stops' when I add a little throttle and the bike starts accelerating a bit. Above 4500rpm I never get that. Also when it studders I feel that the bike is vibrating more than usual and I can hear the drive chain rattle.
And you're being very helpful. I think I know enough about jetting as I've worked with 2-strokes a lot but what I'm really asking here is could that studder be caused by jetting issues (fuel screw, needle clip position?) or is it just because the bike isn't meant to be ridden at that rpm..?
Live in between Sacramento and San Francisco (vacaville)... temps in the high 60's to low 90's.... 100-400 feet above sea level. Relatively dry.. 45-60% humidity.
Bike seems to run fine but does pop quite a bit under decel from 5-8k to close throttle positions. Also... from idle to whacking it open will bog down sometimes and even pop/then die. Bike idles fine at 1800-1950 rpm's, but at the recommended settings of 1700-1800 rpms's... it'll die when whacked open.
I've done lots of searching on here and TT on jetting and even made an excel spreadsheet on it and trying to dial it in perfectly.
So far.... I've changed out the pilot to a 42 and turned the a/f screw to 1 1/2 turns out and the popping/dying at idle to whack is for the most part gone. However, I've not addressed the backfiring issues at the higher rpm range.
Should I move the needle to the 6th position or maybe go with a 175 main? I'm hesitant to try anything else because I don't want to lean out the bike too much and have it running too hot/lean and start having heating/burning up problems.
Any suggestions here... don't think I left out anything.
07 610 slip on & k&n
185 main
jd red 4th clip
45 pilot
thick o-ring
2.0 turns out on fuel screw
bike feels good throughout rpm range
had way to much bottom end with this set up
180 main
45 pilot
5th clip jd red
2.5 out on the fuel screw
leak jet. when i installed the leak jet the idle was all over the place. (1300-1900) i took it out when i went up to the 185 main and the bike idles at 1500 steady.
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