• Husqvarna Motorcycles Made In Sweden - About 1988 and older

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 The previous version was outdated and no longer supported.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

430 premix oil and ratio

HVA_Moto said:
Just think about it this way...no 2 stroke ever seized or blew up because of to much oil but many have been damaged by not enough oil,
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I hate to disagree HVA-Moto but try a 4/1 mix on standard jetting and see what happens.:eek:
Back in the very old days you could drive into a garage and ask for a 1/3 of a pint of castrol to a gallon of fuel.
If the dick*ead misheard you and put a pint:cry: in your tank when you were in paying for the fuel then your brand new Montessa would seize in less than 200 mtrs.

The other thing I learnt is , air cooled oils for air cooled engines and water cooled oils for water cooled engines as both types of oil are very different.
 
Something to consider. When you add more oil to your fuel, you have changed your jetting requirements.
An ounce of premixed fuel that is 20 to 1 means 20 parts of gas and 1 part of oil and 40 to 1 means 40 parts of gas and 1 part of oil, in the same ounce of premixed fuel.
Your jetting will become richer at 40 to 1 and leaner at 20 to 1, without changing the same jet sizes.
Gas cools the engine and oil lubricates it. If you jetting is to rich, your cylinder does not reach a high enough temperature to burn all the oil, regardless of the gas/oil ratio.
 
husky jim said:
Obviously you missed the whole point D Head. You should run the ratio that the book calls for unless you think your smarter than the engineer who designed the thing.
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How often does the manual say to change your piston??

Most certainly not every 10 years.

Also hope you're jetted correctly to run the very rich mixture you're running.

I rest my case.../
 
Smarter than the Engineer?? he has to dumb everything waaaayyyy down for the complete morons that will use his engine!! (without oil, using sand as premix and a jex for an airfilter and no muffler!)
 
adam6402 said:
He must have been left footed like me and tall like me, love the left kicker!!!
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Must have been a giant Swede. Like Canadians they're not born, you just shake a tree and they fall out, too used to kicking Moose about left footed leaving us mere mortals to struggle !
 
suprize said:
Smarter than the Engineer?? he has to dumb everything waaaayyyy down for the complete morons that will use his engine!! (without oil, using sand as premix and a jex for an airfilter and no muffler!)
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Is that the Australian translation? Sand as premix? You should be so lucky, we just got coal ****************************************
 
Moving back to the point :lol:
I have always used Silkoline Comp 2 pre-mix on all my Husky's (and other smokers) never had an issue. I run 40:1.
I did have a shock when I found that the original Comp 2 was no longer available. The new one looks similar, but the 1 litre bottle states that it is suitable for oil injection smokers. This is thinner and is mainly for use on water cooled models. I tried some and the bike ran like a bag of crap. Thankfully my contacts came up with the original formula. Still called Comp 2, but only gettable in 5 litre containers. If anyone wants the new stuff I have 2 litres that I will never touch. It would take me 100 years to get rid of it in the strimmer !
Put the new stuff through, and it runs as sweet as ever now.
 
That was it, comp 2. Got a contact/link to get it? I used to use it years ago at 40-1 with absolutely no probs but a slight haze and a fine smell.
 
Mine comes from John Tremlett Motorcycles in Ashburton (down here in Devon). It is not cheap. Around £40-£50 mark for 5 litres.
If you are going to the Dorset scramble on July 22nd at Penselwood I can bring some with me. You may want it sooner, but let me know.
 
grouty said:
Mine comes from John Tremlett Motorcycles in Ashburton (down here in Devon). It is not cheap. Around £40-£50 mark for 5 litres.
If you are going to the Dorset scramble on July 22nd at Penselwood I can bring some with me. You may want it sooner, but let me know.
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Cheers, thanks for the info. Is that a thinly disguised offer of an outing on the CCM?
 
You are welcome to ride the CCM :eek: ..... mild panick !
But to do so at Dorset you would have to enter the meeting. So long as I get at least two races, you can have the other. Tis a wet and gloopy track that I love.
 
grouty said:
You are welcome to ride the CCM :eek: ..... mild panick !
But to do so at Dorset you would have to enter the meeting. So long as I get at least two races, you can have the other. Tis a wet and gloopy track that I love.
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Wouldn't put you through the stress. Might come down and take some pics though.
 
Nah, it would be fine. It's quite nice to see and hear it from the sidlines. The only other person to have raced it in the UK is Rod Spry. He put me to shame, and he said he was taking it easy ! But it would be good to see you Joe. It may increase your enthusiasm to get a motocross bike up and running.
 
grouty said:
Moving back to the point :lol:
I have always used Silkoline Comp 2 pre-mix on all my Husky's (and other smokers) never had an issue. I run 40:1.
I did have a shock when I found that the original Comp 2 was no longer available. The new one looks similar, but the 1 litre bottle states that it is suitable for oil injection smokers. This is thinner and is mainly for use on water cooled models. I tried some and the bike ran like a bag of crap. Thankfully my contacts came up with the original formula. Still called Comp 2, but only gettable in 5 litre containers. If anyone wants the new stuff I have 2 litres that I will never touch. It would take me 100 years to get rid of it in the strimmer !
Put the new stuff through, and it runs as sweet as ever now.
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I've just run my '82 430 on Rock oil synthesis (fully synthetic and I've got some strange marks in the bore after only running her in for about 10-15 mins. The bore before I started was perfect so I only put a new ring in (Woosner piston) I run it on 40:1 on standard UK forecourt 95 octane fuel, but I'm thinking maybe I should be looking at running it on Rock oil Caster or something similar and maybe add some Av Gas ?

Any thoughts..?
 
My Thoughts ..... Don't ever, never use 95 RON unleaded in your old air cooled two stoke. Fastest way to a bore/piston problem. Been there, done that.
Avgas is better, but remember some is lead free, some is "low lead" (LL). The only issue I have with Avgas is that it is designed for a slow revving engine in an aircraft (typically 2-3000 rpm). The flame burn is intended to be slow. This was fine on our Allison V1710 motors many years ago. We then switched to methanol injection !
All my bikes run on a mix of 97 RON (or 100 if you can get it) and 20% 114 octane leaded race fuel. The race fuel is available from Sunoco fuel dealers at around £100 for 25 litres. It will last a fair while. The motors run clean, start easy, and don't seem to wear like they did on 95 RON chicken poop.
Just my tuppence worth.
 
grouty said:
My Thoughts ..... Don't ever, never use 95 RON unleaded in your old air cooled two stoke. Fastest way to a bore/piston problem. Been there, done that.
Avgas is better, but remember some is lead free, some is "low lead" (LL). The only issue I have with Avgas is that it is designed for a slow revving engine in an aircraft (typically 2-3000 rpm). The flame burn is intended to be slow. This was fine on our Allison V1710 motors many years ago. We then switched to methanol injection !
All my bikes run on a mix of 97 RON (or 100 if you can get it) and 20% 114 octane leaded race fuel. The race fuel is available from Sunoco fuel dealers at around £100 for 25 litres. It will last a fair while. The motors run clean, start easy, and don't seem to wear like they did on 95 RON chicken poop.
Just my tuppence worth.
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Thanks for that.....daft question but is sunoco only available down the west country as I've never heard of it up here in sussex...
 
Sunoco race fuels are but one supplier. There are other makes too. I get mine from Mark Cook at Performance Engine Services.
I did notice at Farleigh the other year that some two stoke competitors were using 109 octane neat, just mixing it with the oil.
Just search out the local car racers, or google Sunoco Race Fuels. I think it is part of Anglo American Oils. If you can, use a leaded fuel. Not legal for use on the public highway of course ;)
 
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