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Samurai carb upgrades

Landslide you're right on all counts. $1000+ to get a Holley Sniper 1100 ain't happening any time soon for me though. Guess i'm not sure about what else would really work or is even available for aftermarket FI.
 
SKULLYOTA said:
Landslide you're right on all counts. $1000+ to get a Holley Sniper 1100 ain't happening any time soon for me though. Guess i'm not sure about what else would really work or is even available for aftermarket FI.
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I looked into the small ones and did not find much positive reviews.

Better bet would be a GM tbi retrofit if you can't find factory stuff.

Mine works pretty decent, but is still doing the thing where it doesn't want to Rev out.
 
I tore into my 3K a little after I took it off and swapped to a weber.....I'm not putting the 3K back on anytime soon but thought some others might use this info?

I was looking into jet replacements before I switched, found some threads on Auszookers where they mentioned that Mikuni jets could be used.

IMG_0088[1].JPG


Guessing sort of at which is primary and secondary, this was the jet nearest the secondary above, it is the vertical jet inside the bottom of the bowl. The likely primary is the horizontal one that is accessed via the bowl plug:

IMG_0087.JPG


The secondary had a massive opening in it, larger than the 140 Weber jet I had for comparison. The primary jet was tiny by comparison

Shitty photo with shitty phone:
IMG_0090.JPG

No stamps on either to indicate potential size though.



these random Mikuni jets from amazon look close: Amazon.com



The other interesting feature is the weighted vacuum flapper BS on the secondary barrel...I shoulda tried tying this open and test driving it to see if it made a difference? Seems pointless since the secondary is mechanical? I know a weber doesn't have one/need one.


IMG_0091.JPG
 
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SKULLYOTA said:
I tore into my 3K a little after I took it off and swapped to a weber.....I'm not putting the 3K back on anytime soon but thought some others might use this info?

I was looking into jet replacements before I switched, found some threads on Auszookers where they mentioned that Mikuni jets could be used.

IMG_0088[1].JPG


Guessing sort of at which is primary and secondary, this was the jet nearest the secondary above, it is the vertical jet inside the bottom of the bowl. The likely primary is the horizontal one that is accessed via the bowl plug:

IMG_0087.JPG


The secondary had a massive opening in it, larger than the 140 Weber jet I had for comparison. The primary jet was tiny by comparison

Shitty photo with shitty phone:
IMG_0090.JPG

No stamps on either to indicate potential size though.



these random Mikuni jets from amazon look close: Amazon.com



The other interesting feature is the weighted vacuum flapper BS on the secondary barrel...I shoulda tried tying this open and test driving it to see if it made a difference? Seems pointless since the secondary is mechanical? I know a weber doesn't have one/need one.


IMG_0091.JPG
Click to expand...
Thank you, I haven’t had any of the performance hang ups that you or YotaAtieToo are dealing with, but mine definitely runs a bit fat at idle and on the primary circuit. I was hoping that I may be able to play with jetting
 
Yeah post up if you find jets that fit right. I wonder if a regular 3K rebuild kit from a parts store works on these too.
 
I’m gonna keep the 3K spamming going

Picked up this used/frozen real Toyota 3k and a rebuild kit. Gonna see what I can make of it and if it’ll be any better.
F4A66E78-CC5A-48F5-BE64-456FED41A20C.jpeg


82BF1E41-D1C0-485D-A8EF-5CC4626132B1.jpeg
 
Well my junkyard 3k turned out to be non-rebuildable and it got tossed.

But look what Petroworks has for sale on IG, Fawkin sidedrafts! They don’t know who made the manifold though. I think Weber used to make a similar one.

 
Over the years I've tried every carb available for the Sammi none of them worked off road. After spending lots of money and time tuning carbs only to be disappointed I finally just gave up on them. I ended up going to propane with a supercharger, it runs smoothly at all angles with plenty of power. Propane was stupid easy to install, only needed one electrical wire hooked up. It took more time to remove the gas related components than to install the propane kit.
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M92PV4U said:
Good luck on the smog... that is my only hang up on convincing myself that I need a sammy.
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Im sure I have one laying around with all the stock smog stuff.
Come fix my new tractor this weekend and we can take the Bill off the cost of a sami.
 
So I've been driving mine to work for like 3 weeks now. It's only 2.5 miles, but 2 miles of it is a 6% grade. I realized today it's been running really good, I even revved it out to wide open 7200rpm in 1st then about 6000 in 2nd it didn't stutter at all.

3k carb from certified machine on a 1.3 for those that don't want to filter back.
 
That’s pretty good! I can definitely recommend against buying one of the Amazon/eBay ones that Certiifed didn’t fix first, my direct from eBay Chinese clone carb sucked. My Weber though has been pretty nice too
 
Pretty good once I extended the vent tube. The float bowl design still kinda sucks compared to the 3K, steep downhills will pull fuel away from the main jets.
 
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