• Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

JD Jetting- Power Surge 6X FI tuner for SM630

LawnDartMike

LawnDartMike

Husqvarna
AA Class
I have seen all the threads about installing it on a TE and how they found more power, etc. I'm not really interested in more power. I just want the bike to run better without the surging between 3K-5K RPM that the bike currently has.

Has anyone been able to get their 630 to hold a steady throttle in lower gears without any surging? EFI was adjusted at the dealer and I would like to have the ability to adjust it myself. If the JD tuner won't do it then I might look at the PC V w/auto tune.
 
Mine stopped doing that when I got the new EFI with the twin Arrows. I´m sure it´ll stop surging once the p/u kit (plug) has been installed.
 
I'm running the PU kit with the full LV exhaust. Also the dealer did adjust the EFI to compensate for the exhaust and PU. I think it is close but still maybe a bit lean. Just wondering if the more street oriented crowd that have installed the JD tuner are seeing any surging or were they able to get rid of it?
 
organ donor said:
Mine stopped doing that when I got the new EFI with the twin Arrows. I´m sure it´ll stop surging once the p/u kit (plug) has been installed.
Click to expand...
Done the same thing to my bike, and it`s no surging at all, smooth power delivery through all gears. Did not install the DB killers, so the exhaust is a bit more "distinct" in sound...
 
LawnDartMike said:
I'm running the PU kit with the full LV exhaust. Also the dealer did adjust the EFI to compensate for the exhaust and PU. I think it is close but still maybe a bit lean. Just wondering if the more street oriented crowd that have installed the JD tuner are seeing any surging or were they able to get rid of it?
Click to expand...
I own a TE630 not an SMS630 but the Husqvarna SMS 630 and TE 630 engines are identical. The ECUs are quite different but both benefit tremendously from more air, fuel and exhaust flow. Add a JD fuel tuner and you'll be glad you did. Oh and you'll unfortunately have more power when adding fuel with the JD tuner :D. The 3K-5k surging will clear up for sure. The entire power delivery from idle to redline will improve.

BTW, the SMS630 has shorter 5th + 6th gears and some other obvious differences. For discussion purposes the engines are essentially the same less the "milder" ECU on the SMS.
 
organ donor said:
I didn´t have to ask to have the EFI re-tuned as I got a different one together with the twin Arrows.
Click to expand...
I was wondering if you would share with me the price you paid for your Husqvarna Twin Arrow Exhaust System. I have a post asking this question but nothing yet as far as a answer.
Thanks !
 
Can´t find the original invoice for the Arrows ... but t´was the list price as quoted in the Husky Special Parts list.Suppose it´d have been less expensive to have ordered direct from Arrow.
 
i have the P/U mod, FMF powercore exhaust, air box opened up, Jd Tuner set at 3, 7, 6/7, 3/4, 5, 6. i tried other people's JD settings and all i got was crazy surging and hesitation at 4500rpm...worse than when the bike was stock. i tried every setting and made about 20 adjustments with the power surge. i can just barley notice the surging now. i actually can't feel it and i can only hear it with ear plugs out. but it is still there. not noticable enough to bug me.
 
LawnDartMike said:
I'm running the PU kit with the full LV exhaust. Also the dealer did adjust the EFI to compensate for the exhaust and PU. I think it is close but still maybe a bit lean. Just wondering if the more street oriented crowd that have installed the JD tuner are seeing any surging or were they able to get rid of it?
Click to expand...

GET tuner, adjust, problem solved :)
 
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