Starting Fluid??

herr0236

Cadet
Joined
Aug 16, 2003
Messages
10
My recently purchased 1982 Chrysler 75 is extremely hard to start. Tried starting fluid, started immediately, and ran great all day. Is using starter fluid safe for motor? in addition, motor starts really well if tilted out of water, then submerged immediately. If started lowered into water, won't start at all. I replaced the spark plugs, had the water impellar replaced. Motor only has roughly 35 hours on it. What could my problems be with starting? Any help is appreciated.<br /><br />Thanks<br />Matt
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,740
Re: Starting Fluid??

Starting fluid is bad for a 2 cycle motor, as it contains no lubricant, and it will wash the residual oil from the inside of the motor.<br /><br />If you start the motor with it tilted up, the water intakes are out of the water, and you will be running the impeller in a "dry" condition. You can burn up your new impeller in a matter of seconds.<br /><br />When the motor is lowered into the water, the water puts back pressure on the exhaust. Not a problem unless you have low compression on one or more cylinders.<br /><br />I suggest you do a compression check, decarb the engine ( decarb ), then recheck the compression.
 

ZmOz

Captain
Joined
Aug 13, 2003
Messages
3,949
Re: Starting Fluid??

Yeah, something is wrong. Do not continue starting it the way you are. Starting it dry is very very very bad for the impeller. I saw some starting fluid in a marine catalog the other day...which had oil mixed in with it. Don't use regular starting fluid. You could also use some gas/oil mix in a squirt bottle, and use that like starting fluid.
 

12Footer

Fleet Admiral
Joined
Mar 25, 2001
Messages
8,217
Re: Starting Fluid??

many wrenches used to use WD40 as a 2cycle starting fluid...Kept a can onboard myself....But alass (couilda said something inapprpropiate there), they changed the formula. Unless you can find that oil-mixed starting fluid, steer-clear. Many of us keep a 99-cent spray bottle from the hardware store, with gas/oil mix in it, for testing...not the safest container for the bildge tho, so I keep an epmty bottle onboard, and will syphon some mix from the tank if the need arises.
 

herr0236

Cadet
Joined
Aug 16, 2003
Messages
10
Re: Starting Fluid??

Thanks for your replys. I also thought about the spray bottle with the mixture already in it. I will do that. Also once the motor has been started and warmed up, it will start fine in the water, do you think there is still a compression issue? Thanks for all the help<br /><br />Matt
 

12Footer

Fleet Admiral
Joined
Mar 25, 2001
Messages
8,217
Re: Starting Fluid??

Yes, I would still suspect a low copmpression condition, or more common, a restricted exaust. <br />Run a compression test first. I would also decarb it, ---LINK TO DECARB PROCESS-- then recheck the compression. If it improves,you may have to tear it appart to get the carbon out of the exaust ports.<br />If you have close to factory compression, and the starting issue goes away, Just do a frequent decarb (every 40hours or so).
 

rickdb1boat

Supreme Mariner
Joined
Jan 23, 2002
Messages
11,195
Re: Starting Fluid??

What is your starting procedure? Pump the bulb up until firm, advance the throttle a bit and choke it. Sounds like the choke could be the problem, also. Check it out and see if it's working properly..
 

Terry H

Lieutenant Commander
Joined
Sep 25, 2001
Messages
1,862
Re: Starting Fluid??

What rick says...make sure the choke is adjusted and working properly...just a Thought
 
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