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 The previous version was outdated and no longer supported.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

All 2st IMS tank low flow petcock?

C

Chums

Husqvarna
Pro Class
So I have a ims tank with the standard on/off/reserve petcock and the crossover to the screw in style petcock. I noticed the screw in style has twice the flow as the other? Nothing is blocking the filter on the on/off/reserve petcock but I'm wondering if the filter itself is slowing the flow?
Anyone have any experience with this? Thanks for any help!
 
The screw type also uses a filter, right?

You could pull the reserve petcock and clean off that filter, could be partially clogged.

I'm not sure this is an issue though, as long as they are both flowing, and the carb float is operating correctly, a high flow won't really be needed. Lets say you've got horrible mileage at 15 mpg, and you're running fast at 30 mph on the trail, that puts you at drawing 2 gallons/hour, or 4.26 ounces/minute. That's not a lot of flow, even in that less than ideal scenario.
 
Chums said:
So I have a ims tank with the standard on/off/reserve petcock and the crossover to the screw in style petcock. I noticed the screw in style has twice the flow as the other? Nothing is blocking the filter on the on/off/reserve petcock but I'm wondering if the filter itself is slowing the flow?
Anyone have any experience with this? Thanks for any help!
Click to expand...
A big issue- has caused me a seizure in the past. You need a watch and a kitchen measuring cup- or a graduated cylinder if you are a science guy.
Tank off-dump it out into a gas can through a screen filter funnel after shaking it;- you will likely find junk in there
Pull petcock check filters;
Tank on the frame with fuel and measure how much flow you get from ONLY one petcock in 30 seconds. Then remeasure [with the same amount of fuel in the tank]with all your filter hookup
It has to be able to flow more than your main jet with a good margin.
 
Chums said:
So I have a ims tank with the standard on/off/reserve petcock and the crossover to the screw in style petcock. I noticed the screw in style has twice the flow as the other? Nothing is blocking the filter on the on/off/reserve petcock but I'm wondering if the filter itself is slowing the flow?
Anyone have any experience with this? Thanks for any help!
Click to expand...
A big issue- has caused me a seizure in the past. You need a watch and a kitchen measuring cup- or a graduated cylinder if you are a science guy.
Tank off-dump it out into a gas can through a screen filter funnel after shaking it;- you will likely find junk in there
Pull petcock check filters;
Tank on the frame with fuel and measure how much flow you get from ONLY one petcock in 30 seconds. Then remeasure [with the same amount of fuel in the tank]with all your filter hookup
It has to be able to flow more than your main jet with a good margin.
 
msmith345 said:
The screw type also uses a filter, right?

You could pull the reserve petcock and clean off that filter, could be partially clogged.

I'm not sure this is an issue though, as long as they are both flowing, and the carb float is operating correctly, a high flow won't really be needed. Lets say you've got horrible mileage at 15 mpg, and you're running fast at 30 mph on the trail, that puts you at drawing 2 gallons/hour, or 4.26 ounces/minute. That's not a lot of flow, even in that less than ideal scenario.
Click to expand...


Can't recall if the screw type has a filter or not....I'd hope it would and assumed it did. I'll be pulling everything out of the tank tonight or tomorrow and report back.
I just found it a little off that they would flow so differently??
 
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