please read this

[sayre315]

ok heres a realy stupid question that only i dont know lol. im cleaning my 2cycle 31cc ryobe and was wandering if i ould use carb cleaner to clean the inside?

 

[Kenny_McCormic]

The proper way to decarb a motor is simply dump seafoam in the intake.

 

[oscaryu1]

Soak it in SeaFoam for a week. Worked wonders. I had a 25cc I WAS working on. The rings broke, and I didn't want to spend $10 on one ring, so now the parts are all over the place. However, the carburetor looked like new after the dip in SeaFoam. Like literally new, inside out.

Remove the primer however, before I dipped it in SeaFoam, it worked fine. When removed, there were cracks everywhere, and simply fell apart when pushed. Another reason why I didn't try and fix it.

 

[oscaryu1]

The proper way to decarb a motor is simply dump seafoam in the intake.

Bad idea. This is a 2 stroke, you'd be leaning the mixture, and who knows what.

 

[Pyrotechnic]

If you added seafoam to the fuel, yeah I could see that being very bad for a 2 stroke. If you took off the air filter and used a spray bottle to spray a fine mist into the carb while revving it, I should work just fine.

 

[sayre315]

i took it all apart so that i know that im only getting the parts i want wet

so can i clean the piston, head , crank and crank case thing?

 

[jr dragster T]

crank bearings too!

 

[oscaryu1]

You want to dump the whole engine in SeaFoam, minus any plastics parts.

 

[sayre315]

i got down to that but i couldnt get the crank out

 

[oscaryu1]

Don't use force. I personally don't have any experience with 2 strokes, but on everything, forcing it to come out doesn't lead to positive results.

Anywho... if you can't get it out, leave it in. It's not that important, if everything else is fine.

 

[sayre315]

yea that wat i did i just left it in there

 

[Kenny_McCormic]

Bad idea. This is a 2 stroke, you'd be leaning the mixture, and who knows what.

Yes I know its a 2 stroke, the problem with running lean is it overheats and melts the motor, your not gonna run it for more than a minute on the seafoam+it will have to be choked while the sea foam runs through the engine to keep it from dieing anyways. engine probably takes more damage form surge tuning the carb.

 

[oscaryu1]

Better safe than sorry.

To remove carbon, use Techron Fuel System Cleaner. 50% if I remember correctly. Carbon will start dripping out of the muffler. Don't rev it, or it'll come in chunks. Then you have another problem to deal with.