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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 The previous version was outdated and no longer supported.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!
mikuni carbs, suppliers
- Thread starter MikeDi
- Start date
justintendo
klotz super techniplate junkie
try it that way but you will likely find the bottom end and mid rich..a 2.5 slide (is leaner), leaner needle jet, and leaner pilot will be needed. that was my experience along with several other 430 users. some have had to richen the main.
the 6dh3 is your needle..dont forget about your pilot, too, as i see you do not have it listed.
you will need to swap jets and run it to get it tuned. another reason doug and i made the recommendation we did. it can take time, and time is money sometimes.
the bike can be made to run excellent with the mikuni. took me awhile to get the 87 430 jetted but i ended up with
35 pilot
q6 needle jet
6dh2 needle (stock)
2.5 slide
410 main
dynoport pipe and stock silencer w/ spark arrestor.
i guess what im saying is you may be buying some jets. nature of the beast. do some searches on "430 jetting"..yours is air cooled so some other threads may be a little more helpful.
justintendo
klotz super techniplate junkie
sharp yamahammers!
huskyJames
Husqvarna
A Class
Great thread, I am just about to order up parts for my 38 mikuni. Justintendo what is the elevation were you live?
MikeDi
Husqvarna
AA Class
I do know a little about jetting but really don't really tune bikes to the optimum. Most often I start with factory jetting and work my way from there. My criteria, It Starts, Idles, doesn't blubber I'm good.
Having said that, I'm going to learn a little from you guys and again I appreciate the information. Mike
Having said that, I'm going to learn a little from you guys and again I appreciate the information. Mike
justintendo
klotz super techniplate junkie
nothing wrong with that i guess, unless something is lean and it seizes or doesnt live as long as it should, or doesnt get the mileage it should, etc etc,.....leaves a lot on the table. sometimes you dont know what you are missing. the 430 will four stroke (blubber) a bit with stock jetting. i havent experienced it with mine much but some say the 430 is too lean on top as well. ironically my 88 250 runs its best very close to stock spec jetting.
1100 ft average..im also running a 50/50 91 puregas/110 vp mix, which makes things a bit rich. if i were just running regular fuel i would likely be a size richer on everything.
MikeDi
Husqvarna
AA Class
A couple more photos. finished this MX250 Rustolium Racer, It's going to get a flogging in the NETRA series. Anyway something to look at. By no means is this a showpiece but it's more fun to ride than I originally though.
Kind of feels like you are that kid growing up that had the really cool dirt bike. I took it to a club event and had more attention than the new KTM's.
Kind of feels like you are that kid growing up that had the really cool dirt bike. I took it to a club event and had more attention than the new KTM's.
Bigbill
Husqvarna
Pro Class
With our old bikes I get older riders who either had one and raced it or lost racing against them. Older riders heck most are younger than me. Nice looking yamme. I did meet one older fellow who raced a Penton to this day he hated Husqvarnas. This tells me that in there hay day Husqvarna must of been a force to reckon with.
justintendo
klotz super techniplate junkie
bike looks good! having the mechanics and function is the priority. it probably is pretty fun to flog around. the old bikes have a sound thats all their own.
Bigbill
Husqvarna
Pro Class
Fact, For anyone restoring a bike don't forget to adjust the brakes before you ride it. I was so excited to get my very first 83/250wr husky running and test ride it I forgot to adjust the rear brake. I wicked it in first gear and she stood up. I had no rear brake to get the front wheel back down. I just rode it out. She had more power that my 72 Suzuki ts185. Twenty five years ago the huskys weren't cool like they are now. Here's come the milkman.
MikeDi
Husqvarna
AA Class
YUP NETRA hare scrambles.. Truthfully I'm going to pick a few that are not rock infested. NETRA has several that are vintage friendly events. Hoosick Falls NY is hilly but no real rocks to speak of.
I have a skid plate for it but it's steel and weighs as much as a front bumper on a 1978 Ford F150.
We have 12 events, I rode 6 last season in EVO Drum Brake class. I want to mix it up a bit.
If this 430 is ready to ride, I may take that to NY instead of the IT. Who knows, I usually ride whatever is ready and closest to the door.
I'd like to ride Vintage class 100%. (1977 or earlier)
I have a skid plate for it but it's steel and weighs as much as a front bumper on a 1978 Ford F150.
We have 12 events, I rode 6 last season in EVO Drum Brake class. I want to mix it up a bit.
If this 430 is ready to ride, I may take that to NY instead of the IT. Who knows, I usually ride whatever is ready and closest to the door.
I'd like to ride Vintage class 100%. (1977 or earlier)
Bigbill
Husqvarna
Pro Class
They do a netra vintage/post vintage ride at thomaston dam in thomaston,ct.
The only thing is the dead start left kicker? (Husky) unless you practice standing on a box with your right leg and kick with your left leg? Practice, practice your dead starts.
I wish we had the vintage, style motocross.
The only thing is the dead start left kicker? (Husky) unless you practice standing on a box with your right leg and kick with your left leg? Practice, practice your dead starts.
I wish we had the vintage, style motocross.
Heres the way i jetted the keihin, started with pilot jet lean 35 (same sizing as mikuni) warmed it up did some high speed runs noticed surging at idle screwed air screw all way in surging stops so went up to a 38 with air screw at 1 turn out.main jet started rich at 180 did some plug chops went to 170 ended up at 165 main (keihin sizing is orifice od 165=1.65mm mikuni is flow rate but willbe a crossover somewhere on the net) my slide is 6 cut which is leaner than a 4 think the number relates to how many mm higher the cut section is above normal, needle position and size/shape can be altered for best transition.one thing to take into accout is if your doingalot of high speed low rpm road sections is you will need to richen up the circuit or risk cold seize.
huskyJames
Husqvarna
A Class
Yes I like the 110 vp also, Ill have to play around with a few jets and needles.