1982 430CR Performance Mods

im by no means good enough to ride like a pro..but i love to tune and learn about huskies...have all my life. strapping a bottle to it, not knowing if it does anything (or knowing it doesnt) doesnt do it for me.
believe me, i have no false pretensions about restoring, pretending to be so-and-so...whatever.
i just like riding hoosks.

I like to see my old husqvarnas still kick butt. I have a pretty good pilot. He's been hammering huskies for over twenty years. When we pull up to the riding area some guys have no clue what there looking at. The ones that do know talk to us about there experiences. But by the time we leave the ones that didn't know believe. I enjoy the response I get with the husqvarnas on the trailer. I enjoyed riding them too. But now I enjoy just having them around and turning wrenches. I feel like a little kid at Christmas morning when I hear the fin ring. The Swedish iron rocks.

Well there we have it folks, all said and done !
Now lets put this thing to bed.

It is not for 430 cr , but may interested some of you !

PORTING 430 AE CYLINDER BY PAUL ROONEY

Hi Michel. Ok it is no good porting an auto for top end power as the auto
only changes gear at maximum torque, & only revs out once in top gear. So it
needs to be ported for more mid range power which is of more use.
Exhaust from top standard = 40.mm, take it to 39.mm.
Exhaust wide standard = 58.mm Take it to 64.mm. Keep the sides of the
port as straight as possible.
Square off the top of the inlet booster ports.
Turn the cylinder upside down & drill 2 holes 1 each side of the inlet port.
Drill from the transfers to the inlet & then grind out till you make them as
large as possible & a nice shape. Do not worry if you cut into the cylinder
stud holes as the head gasket will seal it.
Once all this is done then take .25mm of the top of the cylinder.
You will need to go leaner in the needle jet & up one size on the main to
test. Have Fun Paul.

Michel, what your saying is to add two more transfer ports inbetween the rear transfer ports and the side transfer ports like the later cr 250's had('84?). We drill from the rear reed section on both sides. Adding more intake ports.


I wish we had more posters who used and are still using the boost bottle or canister as its been called. Just for feed back. I don't doubt what everyone is saying.

Yes, that's that !

Making one would be very easy, all you need is a nipple into the intake, a short length of hose and any kind of reservoir.

i keep telling myself im done clicking on this thread, but i keep doing it...

wonder why you have a hard time finding swedes with boost bottles

Makes you say..."Hmmmm" doesnt it?

Ok hmmmmmmm.

Very interesting subject. The Yamaha banshee uses a twin hose boost bottle. There's a member here on the restoration section that says he won't ride without. Idk.

The question is what size boost bottle. I have a Yamaha 465 boost bottle. The size of the bottle, the diameter of the hose plus the length of the hose. Again the jetting has to be spot on first.

Years ago when the roost boost was a topic I was told it didn't work. Certain bikes already had a spark advance and a hotter spark. My Honda didn't. The roost boost helped the 125cr scream even more at the higher rpm. The exhaust chamber had a boost bottle at the engine.? I always keep an open mind.

its been stated here why YAMAHA engines have them, and nothing else...its also been stated my MULTI-CYLINDER engines have them. should it be a shock why a twin cylinder yamaha has one???
do you completely read thru the replies?

Yes I do read all the replies relax brother. Don't get mad at me I'm just researching this. Just the facts. Sorry if I upset you.
There's a post in the restoration section were he installed the boost bottle on a husky and loved how it smoothed out the throttle.

Since most of us have had problems with jetting I wonder how many bikes aren't running correctly. Once the jetting is close and just barely rideable do you give up and ride it anyway? We can't make any changes without the bike running perfect so we can feel the changes. It's like just changing to a after market pipe and not getting the full effect.

I'll throttle back now and go away.

probably one of the reasons 4 strokes are popular..put gas in and ride..until you lose a valve.

I am sure Paul Rooney did that on a 1986 430AE as that is liquid cooled and does have a head gasket.

But the newer high tech four strokes that are running on the edge need a total rebuild sooner. Look at the KTM/husqvarnas. I was thinking a new dual sport husky till I looked at how soon the rebuild was Milage wise. The old reliable low tech last forever Honda xl650l looks good.

Just as a matter of interest - when we say Yamahas had a dodgy reed valve setup - can somebody explain why they were so dodgy that it required a boost bottle to make them work ?????

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