redrocks1982

Does the header wrap really hurt your motor? I'm no pro but if makes the pipe not put out so much heat then why would it make the head hotter? I have A pipe that melted my gas tank and after hours with my soldering gun I finally got it to hold gas again.So I wrapped the pipe to keep the heat off my tank, but I just put in a big bore kit an dont really want to hurt it.

Admin

Two strokes are typically designed to operate at or near a specific temperature, however cheap bikes are not built to exacting specifications.

By the way, you have the theory backwards. Wrapping the header makes the header hotter, not cooler. Heat would be transferred to the pipe and the case of the motor.

Wrapping the header of your pipe may make it too hot and cause issues such as premature burning of the fuel/oil mixture, premature wear on the motor, the motor requiring more oil for cooling which reduces power and more.

I would really suggest against it.

__________________

redrocks1982

Ok well what about having it on just the spot near my tank? Think it will still cause a problem? LIke maybe 3 to 5 inchs on the chamber.

Sleeves

NO WRAP . I have warned you ........ will cause damage!

__________________
RCMRRA OWNER
06' P1 BMS competition BZM 15.5hp Open 50cc
05' DM Telai - ZPF 18 h.p Open 50cc
07' Pitsterpro 125cc
08' CBR125r
96' Gsx-r 600

Pit Boss

Protect the tank instead.
We had one CAG a while back, A2r with a fatty pipe, I taped wide fiberglass cloth under the tank using foil heating/AC tape.
It worked for us, BUT we didn't have contact either, just close.

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"Crew Chief" for TheBMan riding #106
TEAM TSUNAMI
OPBRL - Ontario Pocket Bike Racing League

redrocks1982

Ok thanks everyone! I'm just gonna break down an buy the fatty pipe. That way I will have a tank that is not melting, an two pipes to pick from. Well, Pit Boss why did you have to tape your tank if it came with the one for it? Just to be safe or do they tend to melt up also? An welcome!

Pit Boss

We were new to the sport, and I couldn't believe the tight spacing between the plastic fuel tank and the hottest part of the bike.
The pipe was a mod that needed a frame cross piece cut out to fit.
In use the tank hung on the gas cap, JUST clearing the pipe. But whenever the bodywork was off, the tank sat on the pipe. I also added a few short strips of 1/4" foam tape to the frame rails under the tank.

This was all just prevention on my part, amid many stories from others like yourself of melted tanks.

__________________
"Crew Chief" for TheBMan riding #106
TEAM TSUNAMI
OPBRL - Ontario Pocket Bike Racing League

redrocks1982

Was this pipe you talk of like this one? cause if so I really dont feel like having to mod my frame.fd934 - Fatboy Exhaust Pipe for 47cc Pocketbike

Sleeves

fatty pipes should come with new tank , that allows exhaust to fit

__________________
RCMRRA OWNER
06' P1 BMS competition BZM 15.5hp Open 50cc
05' DM Telai - ZPF 18 h.p Open 50cc
07' Pitsterpro 125cc
08' CBR125r
96' Gsx-r 600

Pit Boss

Yup that's the pipe, good pipe too.
Every modded CAG in our league runs that.
BUT we got the bike complete, I wasn't aware that modded tanks were supplied with them.
The tank on our bike had a half-round recess moulded into the bottom rear portion, it was still close, I thought that was stock.
The frame mod is no big deal, the benefits of the pipe far outweigh the drawback of cutting out that cross piece.
5 min with a hacksaw, you're done, no ill effects noted.
It's a piece of 1" flatstock spanning the left-right frame rails just behind the tank. When the pipe is installed ( on the A2r ), the top of the fat body of the expansion chamber interferes there.

__________________
"Crew Chief" for TheBMan riding #106
TEAM TSUNAMI
OPBRL - Ontario Pocket Bike Racing League