Rebuilding The Rotax 399cc

[exenos]

Like I said, I haven't messed around with tillotson carbs and have no idea. All I know is that some are adjustable. Maybe try on the vintage sled forums

 

[rushking19]

Like I said, I haven't messed around with tillotson carbs and have no idea. All I know is that some are adjustable. Maybe try on the vintage sled forums

OK I'll go check around

 

[rushking19]

I found out mine is a adjustable Tillotson carburetor, so all I will have to do is adjust the high and low speed fuel mixture settings

 

[rushking19]

Does anyone know how to remove carbon off of engine parts

 

[2SlickNick]

Does anyone know how to remove carbon off of engine parts

Try soaking in degreaser for a few days, dremel wire, and then carb cleaner.

 

[rushking19]

Try soaking in degreaser for a few days, dremel wire, and then carb cleaner.

OK thanks I'll try that

 

[zbuck]

Try soaking in degreaser for a few days, dremel wire, and then carb cleaner.

Soda blast them.

 

[Poboy kartman]

Soda blast them.

What flavor soda???? ....and how long do you shake the can?????

That's about the only way I could do it..

 

[rushking19]

Lol this guy ^

 

[zbuck]

What flavor soda???? ....and how long do you shake the can?????

That's about the only way I could do it..

Its best to use washing soda and if you can find it in a can. You can shake it you all want. Some where around here I have instructions on how to make a soda blasting outfit on the cheap. If I can find it I will post it. Of course you have a air compressor.

 

[Poboy kartman]

Its best to use washing soda and if you can find it in a can. You can shake it you all want. Some where around here I have instructions on how to make a soda blasting outfit on the cheap. If I can find it I will post it. Of course you have a air compressor.

No.....but...I'm a blowhard....JK.....

EDIT: BTW: I ran across a similar problem.....with an electrolysis rust removal system....couldn't find the recommended soda washing stuff....guess they've went the way of honest women and dinosaurs...

 

[rushking19]

For now until I can find a soda blaster I'm trying engine degreaser and let it sit a while then hit it with some really fine grit sandpaper to get the carbon that was left

 

[zbuck]

No.....but...I'm a blowhard....JK.....

EDIT: BTW: I ran across a similar problem.....with an electrolysis rust removal system....couldn't find the recommended soda washing stuff....guess they've went the way of honest women and dinosaurs...

We have plenty of Amish around here, so washing soda is ready available. If you can not find washing soda, use baking soda. Still looking for the soda blaster instructions. One thing about either, they are biodegradable and non-toxic.

 

[rushking19]

And where and what type of paint can i use to paint The fins on the engine so they don't corrode?

 

[exenos]

I wouldn't paint the fins. It will reduce their ability to transfer the heat from the engine to the air.

 

[rushking19]

I wouldn't paint the fins. It will reduce their ability to transfer the heat from the engine to the air.

True true thanks I didn't think like that

 

[zbuck]

We have plenty of Amish around here, so washing soda is ready available. If you can not find washing soda, use baking soda. Still looking for the soda blaster instructions. One thing about either, they are biodegradable and non-toxic.

Found the instructions. aircooledtech.com/tools-on-cheap/soda blaster.

 

[2SlickNick]

Found the instructions. aircooledtech.com/tools-on-cheap/soda blaster.

Not working....

 

[zbuck]

Not working....

Sorry about that. try this aircooledtech's.com/tools-on-the-cheap.

 

[rushking19]

So can I use over sized pistons rings on a standard size piston, (0.20) to be exact