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Posted on 6/19/13 at 2:39 pm to AlxTgr
It should be near your master cylinder.
Posted on 6/19/13 at 2:39 pm to hogdaddy
quote:
Seafoaming my Johnson -
Really surprised this thread stayed on topic as much as it did.
Posted on 6/19/13 at 2:40 pm to RogerTheShrubber
quote:
Really surprised this thread stayed on topic as much as it did.
Posted on 6/19/13 at 2:50 pm to AlxTgr
Here you go OP.
Two strokes build up a lot of carbon internally and need to be de-carbonized by doing a "shock treatment" with a detergent like Seafoam.
I like to do the shock treatment once a year on my C115 - in late winter when I am going thru my list of "spring make-ready".
If you use a detergent like Yamaha Ring Free or SeaFoam all the time in your fuel tank, then the carbon buildup is not as bad. Still, a lot of 2-stroke owners will de-carbonize once a year - you will get various opinions on this.
I "shock-treat" my C115 by running the following mixture thru it. This will smoke up the area pretty good, and leave a lot of carbon on the drive way:
16 oz can Seafoam
3/4 gal gas
3 oz oil (2 if oil injected)
Disconnect the fuel line at the input to the bulb and attach a three foot piece of fuel line to the bulb. Mix the above in a small container -
I use an empty 5 quart oil jug. Set the container on the deck of your boat and insert the fuel line and secure to make sure the end stays on the bottom of the container. Pump up bulb and start outboard with earmuffs and water hose, of course -run a little above idle for 15 minutes and turn off. Let sit for 15 minutes. Run again for 15 minutes. Let sit 15 minutes. Repeat until all mixture is consumed. Reattach main tank hose to bulb and run regular fuel/mixture thru motor for 10 minutes - you want to get the concentrated detergent out of the fuel system.
Make sure you do this were you willing to kill off the grass. Never do it in the driveway. A lot of crap will come out.
Two strokes build up a lot of carbon internally and need to be de-carbonized by doing a "shock treatment" with a detergent like Seafoam.
I like to do the shock treatment once a year on my C115 - in late winter when I am going thru my list of "spring make-ready".
If you use a detergent like Yamaha Ring Free or SeaFoam all the time in your fuel tank, then the carbon buildup is not as bad. Still, a lot of 2-stroke owners will de-carbonize once a year - you will get various opinions on this.
I "shock-treat" my C115 by running the following mixture thru it. This will smoke up the area pretty good, and leave a lot of carbon on the drive way:
16 oz can Seafoam
3/4 gal gas
3 oz oil (2 if oil injected)
Disconnect the fuel line at the input to the bulb and attach a three foot piece of fuel line to the bulb. Mix the above in a small container -
I use an empty 5 quart oil jug. Set the container on the deck of your boat and insert the fuel line and secure to make sure the end stays on the bottom of the container. Pump up bulb and start outboard with earmuffs and water hose, of course -run a little above idle for 15 minutes and turn off. Let sit for 15 minutes. Run again for 15 minutes. Let sit 15 minutes. Repeat until all mixture is consumed. Reattach main tank hose to bulb and run regular fuel/mixture thru motor for 10 minutes - you want to get the concentrated detergent out of the fuel system.
Make sure you do this were you willing to kill off the grass. Never do it in the driveway. A lot of crap will come out.
Posted on 6/19/13 at 2:53 pm to fishfighter
quote:Why you gotta get all serious on us?
fishfighter
Posted on 6/19/13 at 2:56 pm to fishfighter
quote:Why?
2 if oil injected
Posted on 6/19/13 at 2:57 pm to fishfighter
quote:
Make sure you do this were you willing to kill off the grass. Never do it in the driveway. A lot of crap will come out.
Was this on topic or off topic? It could go either way.
Posted on 6/19/13 at 2:59 pm to RogerTheShrubber
quote:
Was this on topic or off topic? It could go either way
think it depends on what he means by crap Posted on 6/19/13 at 3:02 pm to AlxTgr
quote:
2 if oil injectedWhy?
By running the motor and if you are using a oil injection, you are just about doubling the oil. Seafoam is very HOT.
So, extra oil will keep things lubed up for the long ride. Older the Johnson, the more lube one needs.
Posted on 6/19/13 at 3:05 pm to Bleeding purple
quote:
Johnsons don't normally have those problems until their 4th or 5th decade. Is there a possibility the flow to the Johnson is restricted due to sugar or thick grease deposits in the lines? Maybe the pump is producing too much pressure damaging the lines? I know some guys will add nitrous to the fuel but that shite is dangerous and can blow up an engine with compression problems. You could have an extra bulb installed and manually pump the fuel to get things started just make sure to back off the pressure when you are done running the Johnson.
Wait - are we still talking about boat motors?
Posted on 6/19/13 at 3:08 pm to hunt66
quote:
Wait - are we still talking about boat motors?
More so on old Johnsons. I have a 1958.
Still runs like new. Just now and then it wants to spit.Posted on 6/19/13 at 3:12 pm to fishfighter
Can you run it multiple time in a short period, or does it need time to recover?
Posted on 6/19/13 at 3:12 pm to fishfighter
I love hanging my old Johnson(1946 5 horse) off my wooden skiff.
Posted on 6/19/13 at 3:13 pm to AlxTgr
quote:
Can you run it multiple time in a short period, or does it need time to recover?
I find that depends upon the number of passengers boarded. My johnson needs less recovery time if i have multiple people on board.
Posted on 6/19/13 at 3:14 pm to Chad504boy
My Johnson smells weird after use.
Posted on 6/19/13 at 3:15 pm to hogdaddy
quote:
I love hanging my old Johnson(1946 5 horse) off my wooden skiff
by wooden skiff you mean splints right?
Posted on 6/19/13 at 3:16 pm to JAB528
quote:
My Johnson smells weird after use.
like burning rubber smell?
Posted on 6/19/13 at 3:16 pm to jorconalx
quote:
by wooden skiff you mean splints right?
and by 5 horse you mean 4.75 horses amirite?
Posted on 6/19/13 at 3:18 pm to AlxTgr
quote:
Can you run it multiple time in a short period, or does it need time to recover?
These days, for me, sometimes. BUT, I can keep my Johnson running a very long time. You know the old saying, they just don't build them like they used to.
:nana: :nana: All those new 4 stroke johnsons way to heavy and don't have a strong shaft in them.
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