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Help! What size tank for 50cc Yak54

Luchnia

70cc twin V2
Jetpainter is correct I can testify first hand spring of last year I pranged I 50cc decathlon because of Viton tubing in the tank ran down the runway and as soon as pulled up the engine died and that was it the tubing had split of nipple in the tank so make sure you have the correct stuff.
Yes, just like other tubing, you have to get the correct tubing when it comes to Viton. There are a lot of different types.
 

Luchnia

70cc twin V2
If you have ever used both types of Viton you can tell the difference. I have both that I use and they do not have the same feel. I am not sure why WrongWay does not show the rating on the line. Maybe send them an email and ask them to verify the rating on it so you know what you purchased. The correct Viton is much more flexible and can be stretched and released easier than the stiffer line.
 

Luchnia

70cc twin V2
I have started using this tubing it is Viton was introduced to it at JoeNall last year and have been using it every since. Love the stuff and it works great will not go back to anything else.

https://pics.towerhobbies.com/imagel/s/lsulq0211.jpg.
I don't believe this is Viton, but a custom proprietary fluoro-elastomer line as it is stated on the package. Viton is trademarked. It is probably good line yet I would not hesitate to pay the extra and stick with Viton.
 
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