Single Carb Conversion 2 Barrel Progressive, Runs Excellent

[CYBORG]

With only five days on the site, and only 11 posts, i don't think you can be qualified to judge us as a "Huge Mensa" hangout. Truth is mensa types don't usually last to long around here. Sorry your not willing to give us a chance. Good luck with your project

[Hal]

Oook? Mensa?

I think the point I was trying to make, as was our piscine friend, is that it DOESN'T take a genius or rocket science to rebuild the original Keihin carbs properly.

If people want to experiment with single carb conversions that's fine, as with 4 flat-slide carb Mikuni conversions, but I'd have thought that if what's required is simply getting the bike to run at its best, as quick as possible and as cheaply as possible, sticking with the carbs that Honda spent god knows how many man hours calibrating and perfecting back in the 70s has to be the best way to go.

Of course it's possible to make Mikuni flat-slide carbs work, someone on here has tried it, but I seem to remember he has had a lot of trouble during the process.

GregForesi and others have used Webers, as has Randakk, but interestingly Randakk seems to think the OE carbs in perfect condition are, over all, the best compromise.

I was simply mentioning that it's quite straightforward to rebuild the Keihins successfully.
I've been more than happy with the results both times I've been obliged to do it.

[Topwingnut]

I don't think westgl is trying to compare the 2 setups factory 4 vs single ... I think his initial concern was the hydro locking from leaving the fuel on... I have expierenced hydro lock several times an it will leave you stranded if you are an inexpierenced rider or GW owner .. Fuel leaking past the floats will flow right on top of your pistons an lock the engine down ... I for one love the idea of this setup an appreciate this man taking his time an effort to write this post

[Hal]

I don't think westgl is trying to compare the 2 setups factory 4 vs single ... I think his initial concern was the hydro locking from leaving the fuel on... I have expierenced hydro lock several times an it will leave you stranded if you are an inexpierenced rider or GW owner .. Fuel leaking past the floats will flow right on top of your pistons an lock the engine down ... I for one love the idea of this setup an appreciate this man taking his time an effort to write this post

To be fair, I hadn't read the early posts when I posted my comment. I'd just seen the comment about the cost of restoring the 4 carb setup professionally compared to 90 dollars for the Weber.

I found westgl's write-up very interesting, but personally I'd prefer to see a back to back test of 2 similar models, one with this conversion, the other on the OE Keihins.

If the Weber really beats the OE carb setup as implied, then I'd be very interested in trying it myself, apart from anything else it's bound to be a lot lighter...the OE rack is unbelievably heavy.

As Robin said, a dyno test would also be good.

I fully understand the thinking about hydrolocking....but I've never had it happen (yet!).

[Topwingnut]

I agree on the dyno .... I think you were misunderstood by making the Mensa hideout comment but to each his own its just an opinion .... I'm here to learn from the old gwers an maybe pass the knowledge on to new comers ....

[Dirt Road Cowboy]

I'm into the single carb conversion because of the simplicity and practicality.

If I'm on a long distance road trip, and I have a carb problem, I like the idea of being able to go to Auto Zone, or some other auto parts store, buy a carb kit for $20, rebuild it in the parking lot, and be back on the road.

I don't want to be stuck somewhere waiting on a Randakk kit, paying hundreds of dollars to stay in a motel waiting for the kit, rebuilding 4 carbs, finding a sync tool to buy or rent when I get finished (or send them off to Pistol Pete for a rebuild), and then go home because I spent all of my trip money on a stock carb rebuild.

True, I may (or may not) lose a little top end speed with a single carb conversion, but I can still go far beyond the posted speeds. Maybe I can only go 110 mph instead of 120, but when do I really need to do either on the highway anyway?

Just my reason and opinion.

[HOTT]

SIGH... I didn't realize this was a huge mensa hideout
color me gone

WHY do we have to go through this crap ALL the time !!!

These are home made manifolds for God's sake!!
You / Me / We are not the first to do these. Just read past posts
Guys have been bolting VW plenums and hose for 25 years.
Even though NO manufacture with million$$ of dollars to spend
puts a plenum AFTER the carb.
We didn't reinvent the mousetrap. We didn't find the Holy Grail carb!
And we certainly can't change physics.

Have fun, build stuff and tell us how it goes.
We love to see how you do it. Jeez.

NGW is better than running down good people with a common interest.
If you gotta be the winner in a non-competition there is other sites for you.

signed
(you'll never work in this town again kid)
HOTT

[gregforesi]

Hmmm.

[CYBORG]

There is no need to makeup problems to justify a carb selection. The four carb system, if well maintained, will not leave you stranded. And to that end, there are thousands of honda dealers across the country, and the world for that matter. If you choose to convert to a single carb, you don't have to justify it on this site. WE embrace experimentation.
i have thousands of miles on stock carbs with no issues. But i never leave on a trip until I'm sure the bike is up to it

[82aspy]

SIGH... I didn't realize this was a huge mensa hideout
color me gone

WHY do we have to go through this crap ALL the time !!!

These are home made manifolds for God's sake!!
You / Me / We are not the first to do these. Just read past posts
Guys have been bolting VW plenums and hose for 25 years.

the problem is new folks including me, running across this stuff literally for the first time

it can easily take years to get up to speed starting from scratch

i had no idea this was a chevy ford, microsoft linux deal

best imo for it to be out in the open with a thread dedicated to it

something like this
http://www.linuxquestions.org/questions ... ad-848145/

Because Shiny Things Are Fun - The New New Windows v Linux Thread

a sticky no less
http://www.linuxquestions.org/questions/general-10/

[CYBORG]

Would not a civil, informative conversation accomplish the same thing? We have been talking about Single carb conversions on this site for years, and the information is all there to be reviewed if you are new to the site, or the concept . Our goal is, and always has been, to answer questions among ourselves to help educate everyone who is interested in learning the answers. Answering and individuals question often benefits many more who are interested, but have not asked

[82aspy]

first i'm hearing
https://www.google.ca/search?q=4A084&cl ... B361%3B299

Even though NO manufacture with million$$ of dollars to spend
puts a plenum AFTER the carb.
We didn't reinvent the mousetrap. We didn't find the Holy Grail carb!
And we certainly can't change physics.

looks like a good starting point for some of us
http://www.ngwclub.com/forum/viewtopic.php?f=47&t=43651

[ericheath]

I'm having rum and coke and reminiscing about the good old days. Cap'n Midnight vs Randakk. Why is this thread turning that way? Back again.

[CYBORG]

with 6 pages of posts that have drifted away from the original concept, i might suggest that interesting parties, with questions, go back 87 posts to the first one where all questions are answered. Time to move on gentleman before it gets ugly

[82aspy]

looks to me like prior to now, there wasn't much attention paid to the 32dft

there has been plenty of focus on it lately including lotsa stuff i was seeing for the first time

i have one from an 81 ford escort ros (rebuilt old stock) that sold for 50 bucks and is still out there

also picked up a used empi plenum with a buncha holley 5200 series and weber 32/64 i'll be playing with

along with 2 new empis, 32/36dgev went for 130 bucks the 30 pict ~ 90

i'll start another thread on what i find, before westgl came along, i had very little interest in going there from the available info