• 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.

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Flatslide For 83 430?

Wildebeest90210

Wildebeest90210

Husqvarna
AA Class
I've been looking at 39mm flatslides with a thought to fitting one on my 430. Im thinking a keihin from a Honda CR? Any thoughts about practicality. In theory it should improve the throttle response but, A. Would I notice? B. Is it just more trouble than its worth?
 
no don't do it.. you wont notice a thing.....and yes its more trouble than its worth....concentrate more on the induction system as a whole.. good air filter.. gaskets.. reeds...compression and timing... and of course to top it all off a really good works pipe... std ally silencer was fine by the way.
 
I've got a friend that put a keihin flat slide carb and throttle assembly from a 1989 Honda CR 500 on his 1981 Yamaha YZ 465. He said the improvement was amazing. The bike rips now! Crisp throttle response and improved overall power.
 
Didn't realise how up to my elbows in engine I would be with this bike. When I'm up and running I will look into it though. I think this thread should be on the general left kicker forum to see if more people have tried flat slides. I posted it here by mistake, I will mail the moderator.
 
I will agree it ought to be moved.

I am guessing you have the two seperate reed cages like say the 420 and 81, 82 430. I don't have any experience with an 83 430. If that is the case the part that holds the reeds can be modified so you hardly realize it is the same piece. Whether the mosbarger set up is better than a modified one I can't say as I havn't seen the insides of a mosbarger set up.

I have a pwk 39 (new from sudco) on my 88 430 now and have good literature as to how to change the needles and jets. The round slide micuni does have needle jets so not as many needles are needed, I don't have the easy to understand what does what for the round slide micuni though most likely it is out there.

The round slide micuni has a heavy slide and the bore it rides in can grow in size. Without knowing how sloppy yours is and how used and abused the one you are thinking of replacing it with it is pointless to comment too much.

The starting button on the keihin certainly seems to do less, often it seems to do virtually nothing. I have no way of knowing if one off a cr 500 has the same passages as the one I am using.

The kieihin pwk 38-39 will fit into the rubber at the reed cage with a bit of force but will be short for the dual shock chasis at the airbox and some creativity will be called for. Mine isn't the quad vent air striker. With the micuni ususally collectors have a surplus of 2.5 slides and can make 3.0 ones by removing material. Last I knew a slide for the pwk was like $65 but I see the slides for the new micuni cabs from husky is almost twice that. I am happy with mine, havn't experimented with different slides and it seems the air striker vs non air striker the comparable slide is a number apart so going off what you read on the internet for slides you should try and verify this true or not.

The pwk is a crescent slide.

Fran
 
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