YS Fuel Tank Question
#1
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Joined: Jan 2002
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From: Cupertino, CA,
Hello!
Is this clunk too far away from the tank bottom, too close, or is it OK. I never gave this much thought before but since this will be my first use of a YS engine I wanna make sure I do everything as correct as possible.
thanks
Filip
Is this clunk too far away from the tank bottom, too close, or is it OK. I never gave this much thought before but since this will be my first use of a YS engine I wanna make sure I do everything as correct as possible.

thanks
Filip
#3
Senior Member
I don't know what motor you are talking about....but a YS motor runs no different than any other motor in this aspect....The new 140DZ, for best results, recommends and come with a foam clunk...This helps the motor from getting air in the pickup tube....
But the tank is really built the exact same way as the other motors.....
The older style YS motors use a pressure system....That looks like a Hayes tank.....Replace it at about 100 flights. The constant pressure and release of the YS system will cause it to leak.....The tank will spring a leak on the one of the forward corners and will be tough for you to find.....
Tettra tanks are the best setup for YS motors. They are a little thicker plastic and no stress areas like the little shelf under the stopper on the Hayes tank....
You can get Tettra tanks form Central Hobbies
www.centralhobbies.com
For the 120-140's a 16oz works great if its the newer 140DZ then go for a 20oz tank.....More power eats more fuel!
Troy Newman
But the tank is really built the exact same way as the other motors.....
The older style YS motors use a pressure system....That looks like a Hayes tank.....Replace it at about 100 flights. The constant pressure and release of the YS system will cause it to leak.....The tank will spring a leak on the one of the forward corners and will be tough for you to find.....
Tettra tanks are the best setup for YS motors. They are a little thicker plastic and no stress areas like the little shelf under the stopper on the Hayes tank....
You can get Tettra tanks form Central Hobbies
www.centralhobbies.com
For the 120-140's a 16oz works great if its the newer 140DZ then go for a 20oz tank.....More power eats more fuel!
Troy Newman
#5
Community Moderators
My Feedback: (42)
I've run YS's since the short stroke .60 became popular and never had a problem with a Kraft, then Hayes, tank failing. Sullivan, yes, but never a Hayes. My favorite were the IM tanks, but they are impossible to find these days. Anymore, I use Hayes and forget about them.
John
John
#7
Senior Member
Central Hobbies I beleive has the IM tanks...they are also a good choice. Easy to open up too.....
www.centralhobbies.com
TN
www.centralhobbies.com
TN
#9
Senior Member
I know I purchased them in the past.....I found I liked the Tettra tanks better and stuck with them.....But in 2000 for sure Central was selling them....
I have last years catalog....showing IMP450 is the 450cc tank (16oz) and IMP60304 is the 14.75oz tank..... about 8-9 bucks each
I know Central also carries the IM control horns and fuel pump too....
I bet they have them....not all their stuff is online.
1-800-723-5937
Take it easy
Troy
I have last years catalog....showing IMP450 is the 450cc tank (16oz) and IMP60304 is the 14.75oz tank..... about 8-9 bucks each
I know Central also carries the IM control horns and fuel pump too....
I bet they have them....not all their stuff is online.
1-800-723-5937
Take it easy
Troy



