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Premix!

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Old Mar 30, 2004 | 07:29 PM
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Default Premix!

Well today I was reading on the RX-7 board that you can pour (POUR!!!) water into the carb to "steam clean" it. Not wanting to do that just yet...I opted instead for spraying carb cleaner in. I drove the car around a bit, warmed it up, then popped the air filter cover, and revving the engine with the choke (handy gadget, considering I can't find the throttle cable) I sprayed some in each side of the carb. Engine stumbled a little, then revved back up again. I didn't use much, probably will do it again soon, as it really seemed to help smooth out my idle, and seemed to rev a little smoother. BTW, where is the throttle cable?

Also, I finally got out to get some 2-stroke oil. Debating what container to keep it in, and decided on:
2-liter bottle to fill with 2-stroke oil. Cap on it from a Dove dish detergent bottle (Pop off and squeeze type). Using that as a source container, squeeze into a water bottle with a pull-out type nozzle on it. This way it will fit in the gas tank, just squeeze from the source 2-liter into the smaller bottle, with a spout that can go right into the tank filler.

I realized today that my planned method of using a 10 oz bottle poured into a funnel in the tank won't work well. #1, it's too hard to see when refilling the bottle. I overflowed it onto my garage floor. #2, I managed to get it on myself at the gas station, getting the bottle, my hands, the ground, shirt, and bag it was all in previously, spattered with oil. Generally too messy to do regularly.

In the future, I hope to find a squirt top for a 3 liter bottle. That would be ideal for a long trip, which is the most I should need to store in the car at one time.

My OMP seems to work, might be clogged, but it seems a little sluggish, so until I get it figured out or removed, I decided I'm gonna premix to be safe.

Last edited by Illswyn; Mar 30, 2004 at 08:04 PM.
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Old Mar 30, 2004 | 11:06 PM
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Try to lighten up on the premix,cause you are still running the OMP,I took mine off,ripped the guts out of the front cover,and made a block off plate.

What aftermarket carb do you plan on running?
You can run a Holley on a stock intake with an adaptor,this is just for temporaly fix.
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Old Mar 31, 2004 | 07:18 AM
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LOL. Aftermarket carb? First I want the car running good...I have 2 cars to maintain, and 1 to put back the head. Money is far too tight to worry about a new carb.

I just turned down buying Aerosmith tickets because we can't afford it. I certainly can't go spend unnecessarily on the car.

The OMP is working, I put 16 oz in the tank last night though because it isn't pumping enough I'm told. Probably will run it to about 1/2 tank, fill up, and then start putting only about 8 oz per tank.

Isn't there a way to adjust the OMP's delivery rate? I could turn it all the way down if so, and then just premix. I'd feel better doing that or removing it altogether.

Also the pump only pumps when you push the throttle, not when the choke is on, I believe. Can't be good to warm the car up with no oil going in, can it?
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Old Mar 31, 2004 | 08:38 AM
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I use a small pint size zypherhills water bottle to messure and pour into tank with. I put about 8 oz to 10 gallons, it is not too messy, if I get it anywhere it is on the side of the bottle which is easily cleaned off. Get rid of the omp, engine oil is NOT made to burn and lube at the same time, unlike 2 stroke oil. The throttle cable should be quite easy to find, just start pulling on stuff that looks like it is connected to the primary throttle plates.
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Old Mar 31, 2004 | 03:16 PM
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You guys are going pretty light on the premix, I would recommend a 2.6 OZ per Gallon ratio, and only use TCW-3 in the gas.
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Old Mar 31, 2004 | 10:14 PM
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Originally posted by Illswyn
LOL. Aftermarket carb? First I want the car running good...I have 2 cars to maintain, and 1 to put back the head. Money is far too tight to worry about a new carb.

I just turned down buying Aerosmith tickets because we can't afford it. I certainly can't go spend unnecessarily on the car.

The OMP is working, I put 16 oz in the tank last night though because it isn't pumping enough I'm told. Probably will run it to about 1/2 tank, fill up, and then start putting only about 8 oz per tank.

Isn't there a way to adjust the OMP's delivery rate? I could turn it all the way down if so, and then just premix. I'd feel better doing that or removing it altogether.

Also the pump only pumps when you push the throttle, not when the choke is on, I believe. Can't be good to warm the car up with no oil going in, can it?
Theres no manual adjusyment for the OMP,so thats out of the question.
The higher the rpm the more it should pump out.
OMP is a oil leaking nightmare,Itrashed mine but you can but the rebuild kits for them somewhere online for $10.

I will post pics soon..
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Old Apr 1, 2004 | 06:09 AM
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I just found in the manual a picture of the OMP that shows it using a washer to adjust clearance. Can't post a picture yet, it's in Adobe, having a hard time figuring out how to get an image copied. (I guess I could print it then scan it, but scanner is still in the box)

Basically, I would think adjusting one direction makes more oil flow, the other, less.

I'd probably remove it though, because if it's leaking, it's still going to leak.

(NOTE: This is all conjecture on my part, as I can't seem to FIND it even yet. If I need to, I'm sure I will)
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Old Apr 1, 2004 | 07:04 AM
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"You guys are going pretty light on the premix, I would recommend a 2.6 OZ per Gallon ratio, and only use TCW-3 in the gas."

What? You seem to be a joke? Where do you get your info from? If I ran that rich I would foul plugs left and right ! ! ! I have never heard of anyone mixing that rich before in my life! The richest I have heard of mixing is 1oz to 1 gallon. Racing Beat suggest leaner than what I do, I think 3.5 oz per 5 gallons. I have the catalog at my house and can double check my qoute. That is almost as rich as I run my Cr125! And I ONLY run Castor!
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Old Apr 1, 2004 | 06:36 PM
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Originally posted by 813kr$
Get rid of the omp, engine oil is NOT made to burn and lube at the same time, unlike 2 stroke oil.
Is there any way to hook it up to 2 stroke was pulled into the OMP instead of taking oil from the engine?
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Old Apr 1, 2004 | 07:55 PM
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Yes, there's a kit to do that, somewhere. I wasn't too interested though because well...I just got the car.

I think it basically just pumps from a reservoir that you put the 2-stroke oil in. Kinda wonder why they wouldn't do that to begin with. Why pull oil that is getting dirtier and dirtier as you drive, to get tossed into the combustion cycle?

I'd rather be able to run synthetic (though not on my high miles) and pump in fresh 2-stroke oil. I think if I had a low-mileage engine I would do just that. Efficiency and longevity of synthetic, and still lubricating properly internally.
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