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 Recovering a sunk sigle cylinder

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countryboy61283
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Join date : 2011-03-04
Age : 35
Location : perryville, arkansas

PostSubject: Recovering a sunk sigle cylinder   3/5/2011, 3:25 pm

CREDIT GOES TO MUDINMYBLOOD.COM FOR THIS GREAT HOW TO

First things first. DO NOT TRY TO CRANK IT UNTIL YOU ASSESS THE DAMAGE!
Secondly, DO NOT TRY TO CRANK IT UNTIL YOU ASSESS THE DAMAGE!
Once you sink the bike, remove the dipstick and take a gander. Fully milked? Pouring out when the dipstick is removed? Tow it back to the trailer and load her up. You don't want to cause more damage that may already be there.

Hopefully, with these simple steps, you'll be back up in no time. You need to clean the bike as soon as possible.
IMPORTANT * The longer water and moisture stay inside the greater chance rust will form on the internal engine parts. * IMPORTANT

Supplies:

oil - cheap house brand oil - $4.97 for 1 gallon jug stuff! Get at least 2 gallons.

oil filters (cheap filters)

Can of Seafoam (or Marvel Mystery Oil)

*** Note*** People suggest a lot of stuff to run through the crankcase after a sinking - from diesel fuel to transmission fluid.
I'm sorry but I'm not running anything in the crankcase other than oil and a water removing additive so this write up will not cover the use of those fluids!

Steps:

Drain Oil, Remove Spark plug, Inspect air box and remove the air filter. Stand the bike on its back end and let the water drain out of the tailpipe (this might be best to do right before you load it up on the trailer after you sink it). Be sure to thoroughly clean out the air box.

If you have a carbureted model, drain the carb bowl. I like to pour 1/2 oz of Seafoam down the intake if you can see it.

Now that oil is drained and plugs are removed, turn the bike over a few times to clear the water (if any) from the the top of the piston.

Put spark plug back in and refill with oil. Leave enough room so that 3oz's of Seafoam can be added in the oil.

Try to start the bike. If it starts, run it for 30 seconds. While running, shake the bike from side to side to slosh the oil around inside.

If the bike does NOT start, you may have low compression from seized rings on the piston. A capful of oil (about 15ml) in the combustion chamber should free them and get the compression up. This can be added through the spark plug hole. Once the oil is in, put the plugs in and turn the bike over. Give it full choke and spray starting fluid if needed. The bike should now start

Once the bike is able to run, its now time to start the repetitious draining and refilling of oil. With each change, add 3oz of Seafoam and run the bike for 2 minutes between each change. Change the filter every other draining.

Repeat Step 5 until oil is clear (check via dipstick). Don't forget the Seafoam each time!

Once oil is totally clean take the bike out and ride it for an extended period of time (30 minutes or so). This gets the bike heated and any remaining moisture is evaporated out and evacuated through the crank case vent.

After riding in step 7, refill with your normal oil and filter

Some things to note
- your bike may smoke lightly after sinking. Most of the time this goes away. It can be from a combination of water left in exhaust, Seafoam burning off, or residual oil from freeing up the piston rings. 9 times out of 10 it will stop smoking.
- If you sank the bike in creek water your engine will likely be ok. If you sank it in mud, a rebuild at some point is inevitable
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