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If you're not registered, please consider doing so. It's easy - just click the "Register" link at the top
right corner of the page. Our forum needs members like you to contribute to the site in order to survive.
We are a community of boat lovers and Hydrostream enthusiasts here; we are happy to help anyone
who may need advice or guidance for their 'Stream; and we encourage members to offer their advice
and guidance to others as well. Thank you for visiting our forums, and please register.
We're better than Facebook.
Registering only takes a few minutes and you can do so by CLICKING HERE
If you are a member, don't forget to log in to take full advantage of the forum.
BIG BORE LOOPER CARBS
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- Hydrostream Addict
- Posts: 299
- Joined: Jun 10, 2009 10:35 am
- Location: Savannah,Ga.
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BIG BORE LOOPER CARBS
I have a set of 200- 225 looper big bore carbs I,d like to get rid of. They come with the throttle body, and were cleaned. Asking $200. Call Rick 912-604-5595, or email frederick55@windstream.net
Re: BIG BORE LOOPER CARBS
Silkey, what jets are in these carbs? idle, Mid and Highs? Also do you have pics of these bad boys?

1993 Hydrostream Vision aka Project "HydroSCREAM" SOLD
1979 J-Craft Pro Ski SOLD
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- Hydrostream Addict
- Posts: 299
- Joined: Jun 10, 2009 10:35 am
- Location: Savannah,Ga.
- Been thanked: 1 time
Re: BIG BORE LOOPER CARBS
I'll check those jet sizes today, and get a couple of pics. These are the carbs that came on the 87-88 that they don't make anymore. The racers still use them. Thanks for the interest.
79 Viking 225 Looper
79 Viking 225 Looper
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- Hydrostream Addict
- Posts: 299
- Joined: Jun 10, 2009 10:35 am
- Location: Savannah,Ga.
- Been thanked: 1 time
Re: BIG BORE LOOPER CARBS
Hey Speed, I got the info you wanted. Some thing you want to keep in mind. The low and midrange orafices are not delivering fuel. They restrict air flow. The larger the orafice, the less fuel you get because more air (less vacuum) is created. That huge mid range orafice you have is causing a very lean (no gas) condition in your midrange by allowing too much air flow, and probably causing your lack of throttle responce. Less air flow bypassing through the low-mid orafices creates more vacuum on the hi (fuel jet) coming of the bowl. That jet is the only source of fuel. I have two sets of carbs. The big bores have #14 low, #20 mid, #65 hi. Carb # 397574. I checked the spechs, and these air the right orafices for these 1986 carbs. The throat is 1 5/8 diameter, the biggest they made. The other carbs are the mid size, and have #31 low, #47 mid, #65 hi. Again these are the right jets, but often low and mid orafices were changed to correct lean or rich idleing and midrange conditios. That is the main problem with the fixed jet carbs. Sending pics of the big bores. Hope it helps. Check you PM
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- Hydrostream Addict
- Posts: 299
- Joined: Jun 10, 2009 10:35 am
- Location: Savannah,Ga.
- Been thanked: 1 time
Re: BIG BORE LOOPER CARBS
Heres a pic [img][IMG]http://i773.photobucket.com/albums/yy16/silkeysak/carburetors-1.jpg[/img][/img]
Re: BIG BORE LOOPER CARBS
You have we really thinking about these Carbs Rick! Can you get me a Shipping quote to...
Sreet: 1345 Cuthbert Way
City:Greely
Province:Ontario
Country:Canada
K4P 1A4
I bet you I throw these carbs on and it would be better then me Messing around with ordering Jets from BRP.
Sreet: 1345 Cuthbert Way
City:Greely
Province:Ontario
Country:Canada
K4P 1A4
I bet you I throw these carbs on and it would be better then me Messing around with ordering Jets from BRP.

1993 Hydrostream Vision aka Project "HydroSCREAM" SOLD
1979 J-Craft Pro Ski SOLD
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