Flushing out Bottom End?

[dmitrikinaev]

Hey guys, I went through some puddles, on the weekend on a 2000 ktm250exc. Some water got past the airbox, and possibly past the carby.

All plastics are off, fuel tank off, carby off and cleaning, reedblock off. I was thinking of doing the following: Please help me!



1. Drain gearbox.
2. Drain radiator.
3. Wrap rags around handlebars as not to scratch them.
4. Tip bike upside down. (like bicycle)
5. Spray degreaser, kerosine, wd40 and Oven Cleaner into cranmkcase hole from reed block.
6. Keep spraying kero, while spinning rear tyre in gear - thus moving the crank
7. Also spray some kerosine and oven cleaner into spark plug hole + exhaust port to clean some carbon deposits and powervalve.
8. Wash everything out with garden hose and turn water off.
9. Spray wd40 into crankcase, exhaust and sparkplug hole, still spining engine.
10. Let sit for maybe 30mins, then lean the bike in different directions to excrete all water. (some will still be left in there)
11. Fill a spray bottle with 2 stroke oil and spray the crankcase heavily, and some into spark plug hole, while spinning engine.
12. Tip bike back how it was.
13. Connect reedblock, carby, airfilter. Also fit exaust back on.
14. Fill radiator, gearbox
15. Put fuel tank back on and connect to carby.
16. Put in new sparkplug.
17. Kick and hope for the best.

OK. that was my method for my last bike (98 Yamaha WR200 - 2stroke)

Does it look OK? Have I forgotten anything?

Is there anything I should be careful of? Anything extra needs doing, while I'm in there?

-cheers guys,

regards, Dmitri.

 

[nickyd]

holy crap dude. how much water are we talking about??? 2 years ago, on the first day of a 4 day riding trip 10+ hours from home, my buddy dumped his bike in the rapids....the bike almost washed away....needless to say it spent about 5 solid minutes under water.....we towed it to camp, changed the fluid, tipped it over and got all the water out...flushed the cylinder (through the plug hole) and fired it up. Its still running today.

and who's method is that? oven cleaner? dude, use that stuff sparingly and only on the p-valve when its apart....it can eat through aluminum more than you think.

I personally think you are over-reacting a bit...OK, a lot...

 

[dmitrikinaev]

OK, so do you recommend just tipping it upside down, and spraying it with diesel and kerosine or something?

I'm just really worried that there is any dirt in the crankcase.

-cheers,
Dmitri.

 

[Sawblade]

I wouldn't do oven cleaner either as it may damage the coating on the cylinder walls.

Did you submerge the whole bike or just suspect you pulled some water into the engine? If you pulled some water through the filter into the engine, any dirt that came with it I would think is long gone long.

 

[nickyd]

I agree - did the bike get submerged? lets be realistic - some dirt gets into the cylinder REGARDLESS of hard you try to keep it out - a little dirt hear and there isn't going to make the bike implode.

 

[dmitrikinaev]

Yeah, if there is any dirt, there probably was a couple of specs. My dad said if a tiny bit of dirt got into the bearing, the dort would get crushed instantly and blown away without damage.

The bike did not get sumberged at all. Just a tiny bit of water and dirt got into the carby, possibly some got past it.

So, you guys rekon, just leave it, chuck the carby back on and ride!! ???? >?

 

[nickyd]

If you have the carb off, clean it - what the heck. clean out the intake and put it back together and ride!

 

[Nathan Rubin]

If you are worried so much, just screw out the plug and let it dry. Stay cool all the time and don't overreact.