• 2 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
     WR = 2st Enduro & CR = 2st Cross

  • 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 The previous version was outdated and no longer supported.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!

250-500cc WR 250 - Loss of Power and Lots of Spooge

We'll see. But what about the excess oil? Should I raise the needle clip to lean it out or just run it first with the new silencer and cleaned jet and see how it goes?

Once again, thanks everybody!
 
mikebru said:
We'll see. But what about the excess oil? Should I raise the needle clip to lean it out or just run it first with the new silencer and cleaned jet and see how it goes?

Once again, thanks everybody!
Click to expand...
If I were you I wouldn't change the jetting until you ride it after the things you for sure fixed (pilot jet unclogged, silencer screen unclogged). You are likely to create another problem by changing more than one thing at a time.
 
mikebru said:
We'll see. But what about the excess oil? Should I raise the needle clip to lean it out or just run it first with the new silencer and cleaned jet and see how it goes?
Click to expand...

Don't raise the clip. I tried the JD red in the first clip and I thought it was too lean, I very quickly switched it back.

The bike may have been running rich because of the plugged spark arrestor. Get that sorted and ride it and see how it feels.
 
Great advise here. Also IMHO never jet by how much spooge comes out the back. Jet by how your bike runs and how the plug looks and deal with the spooge. If the spooge upsets you try different oils, some cause way more spooge than others. If your woods riding and are off the throttle a lot like on long downhills this lets gas and oil pool in the crankcase. When you open it back up after this all that goes out the pipe and into your muffler packing. I deal with lots of spooge but my bike runs fantastic. Do as suggested and see where the cleaned out pilot jet and SA screen get you.
 
It got me places!

Just ran it with my old silencer with the spark screen removed, carburetor/pilot jet cleaned and left side pv cover removed.

Started a bit easier than usual.

Idled really fast, a lot faster than before, without me adjusting anything to make it do that. I thought the throttle was twisted! Used choke than closed it. Still idled fast. I'll adjust that later. Oh yeah, a lot of white/light gray smoke, too.

Gassed it in neutral and saw power valve linkage moving so I guess it's working.

Did a 10 minute ride. It took off like a rocket and stayed that way! Then got on pipe and it took off again. No stumbling at all like on Sunday's ride. It hasn't run this good since I bought it. And no drool! Maybe 10 minute ride isn't long enough to prove that out, though.

Can't wait to see what it does with the new silencer.

Thanks everybody for your fast and great help. Going to Great Adventure tomorrow after work with family so I can't report back on Q stealth until Friday or Sat.
 
PowerKord said:
^^^
What needle are you running on your 2008? I wondered if that kit was meant for the newer TMXX carbs. I tried the white needle and it was crazy lean, I think I put the red in and was still lean. JD gave me another needle to try, but I never put it in. The stocker runs really well in my 2008, 3rd clip.
Click to expand...

Just a little more info that may help... JD had me install the 410 Main, 32.5 pilot, white needle and I'm on the 3rd clip. The air screw is out 1 full turn and 1/8 more. I started with the air screw at 1.5 turns out and it was so lean it wouldn't run. Keep in mind, I'm at 1000 feet, 90 deg temp and 85+% humidity. I am running 'Water Pumper' synthetic premix 40:1. I'm sure I'll need to richen it up when the temps go below 65 deg.
 
Its idling fast because it is getting gas now as the pilot is clear. Play with your air screw and idle adjustment til it is right. Glad it all worked out for you.
 
Jhunter said:
Just a little more info that may help... JD had me install the 410 Main, 32.5 pilot, white needle and I'm on the 3rd clip. The air screw is out 1 full turn and 1/8 more. I started with the air screw at 1.5 turns out and it was so lean it wouldn't run. Keep in mind, I'm at 1000 feet, 90 deg temp and 85+% humidity. I am running 'Water Pumper' synthetic premix 40:1. I'm sure I'll need to richen it up when the temps go below 65 deg.
Click to expand...

I'm using same here riding say 2500-6000 elevation now. Working good. My AS might be 1.25 tho. Glad you got a JD kit and his recommendations. I had my bike sit for three weeks recently with non-ethanol fuel and 32:1 oil. Tipped on its side, choke on, cycled the kicker a few times, TDC, hard kick, fired - first one. This is first for me so that means the 32.5 PJ is a lil lean for temps below 55*F IMO.

Did you also change the main nozzle too?
 
mikebru said:
We'll see. But what about the excess oil? Should I raise the needle clip to lean it out or just run it first with the new silencer and cleaned jet and see how it goes?

Once again, thanks everybody!
Click to expand...

Excess oil has nothing to do with jetting,just mixture.

Ktm 300exc is 60/1. Spooge is indication of mixture.

My 13 had next to no spooge at 60/1
 
rabskyline said:
Excess oil has nothing to do with jetting,just mixture.

Ktm 300exc is 60/1. Spooge is indication of mixture.

My 13 had next to no spooge at 60/1
Click to expand...
Actually spooge has to do with the combination of the #1. flashpoint of the mix oil you are using and the #2. combustion temperature.

I can and have gone from 25:1 to 40:1 with no difference in spooge. My bike is correctly jetted so it makes enough combustion temperature to almost completely burn either ratio. If you have time go to the Ammsoil website and look up the specs on Dominator and Interceptor mix oil. http://www.amsoil.com/shop/by-product/motor-oil/2-stroke/ You will see that there is about a 10 degree difference in flashpoint. Dominator is for all out extreme racing conditions while Interceptor is more for trail riding situations.

This has been discussed here on other threads and some riders who ride singletrac have switched to a lower flashpoint oil and cleaned up their exhaust without a jetting change or a ratio change.
 
I'm about to start searching websites, but does anybody know of oils with lower flashpoint than Dominator? My 2 shops I have access to only carry Dominator, among others. No Interceptor. I think I also saw Belray and Maxima, both synthetic I believe.
 
I wouldn't worry about it too much.

I use Maxima Super M and have been very happy with it. Lots of other good oils out there too, as evidenced by the many threads here on the topic.
 
mikebru said:
I'm about to start searching websites, but does anybody know of oils with lower flashpoint than Dominator? My 2 shops I have access to only carry Dominator, among others. No Interceptor. I think I also saw Belray and Maxima, both synthetic I believe.
Click to expand...
I had trouble finding Ammsoil products so I paid about $20 for a 1 year dealer card and then I bought a enough Interceptor and Dominator to last me 4 years. I saved more money then it cost because I got a discount. I mix 1/3 Interceptor to 2/3 Dominator @40:1 and it works out perfectly for me.
 
mikebru said:
I'm about to start searching websites, but does anybody know of oils with lower flashpoint than Dominator? My 2 shops I have access to only carry Dominator, among others. No Interceptor. I think I also saw Belray and Maxima, both synthetic I believe.
Click to expand...

Maxima super m injector oil blend has a low flash point as does interceptor.
 
I use Maxima K2 and have very little spooge. I would not worry much about flash point of the oil. Yes, jetting has a big effect on spooge as does the amount of oil and of course the riding style of the rider. Some bikes spooge a lot more than others. I have ran several oils in my Husky and all have caused very little spooge. I tried at least a half dozen oils in my old KX and it was just a much more spoogey engine no matter the oil and lots of jetting changes.
 
Thanks again everybody. I just ordered a few quarts of Interceptor.

Well, I think my saga is complete, at least the 'falling flat when it should be on the pipe' part. I installed the fmf and adjusted the idle, went for quick ride around block and all seems good. No drippage either.

To adjust idle to be slower, I had to turn the air screw in to get the idle screw to cause a change in the idle speed. The air screw is almost all the way in. Is that ok? I never adjusted the air screw back out, though. I'll experiment tomorrow. I followed the idle adjustment procedure in the service manual.
 
The air screw was in because you were trying to go richer as the lean pilot was plugged. You need to run it out to about 1.5 turns out now.
 
What he said.

Generally, you adjust the air (mixture/pilot) screw to get the ideal mixture, and then adjust the idle screw (the throttle stop) to get the right idle speed.

The standard way to adjust the mixture is to get the bike warmed up (not riding-around-the-yard warm, actually warm, like during a ride) and then adjust the mixture screw for the highest idle speed and best off-idle response. Basically you turn it in until the RPM starts to drop, turn it out until the RPM either stops going up or starts to drop, and set it somewhere between those two. Should be around 1.5-2 turns out. Then you adjust the idle speed with the throttle stop screw.

Given the jetting you have, I'd probably just set the air screw to 1.5 turns out and be done with it, unless it causes an obvious problem. Some guys are more finicky with carbs than others...
 
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