Help me find a few parts?

[Luni]

I need to get the gasket that goes between the flange and the pipe for a FMF Gold Series (you know, the flange bolts to the head, then a little donut gasket slides over that, then the pipe slides onto the flange and the gasket seals). Anyway, anyone know a place that will sell just that gasket? I tried one from Yamaha and it wasnt big enough in the middle.

I also need to get a new rubber coupler for the pipe to silencer connection and the 2 clamps that goes with it. Looking for the best place online to buy that.

 

[speedracinshift]

for your pipe clam just go to a auto parts store and get some heater hose u can buy it buy the foot and two hose clamps it will cost u no more than like 3 or 4 $ to do this and that way when they wear out just cut a new peace and there u go. the oem crush washer should be all u will need for the fmf flange the one from yamaha should have worked that all i used they are only like about 7-8$ too.

 

[justtwistit]

yeah the oem donut gasket is all u need for the flange, i have a fmf and i replaced it with that and it doesnt leak. there are like $7

 

[Luni]

My flange must be fuxored or something then. I couldnt get the OEM one to work.

I wonder I should just grind the flange down a little to smooth it out. Maybe it just has crap built up on it.

Thx guys. Rep given

 

[justtwistit]

yeah i cleaned my really good before reinstalling
u could also try adding some high temp rtv around flange when u install

 

[stephen12091985]

My flange must be fuxored or something then. I couldnt get the OEM one to work.

I wonder I should just grind the flange down a little to smooth it out. Maybe it just has crap built up on it.

Thx guys. Rep given

i had to grind the welds down a bit on my f7 flange where it went up against the motor cuz it didnt sit flat

 

[98blaster+4]

the gasket goes inside the exhaust port of the engine...just makin sure you are puttin it in the right spot. sounds kindas like your puting it between the fmfpipe and the fmf flange.

 

[Luni]

I am trying to put it between the FMF pipe and FMF flange.

Ok, so yeah, question then, mine leaks. My flange doesnt seal worth a crap and it leaks "spooge" and you can HEAR it causing an exhaust leak coming from there. So how do you get that seal? I see lots of people welding their flanges. That little gasket looks like it SHOULD slide over a clean flange pipe and do the job.

 

[Luni]

i had to grind the welds down a bit on my f7 flange where it went up against the motor cuz it didnt sit flat

Could you get me an up close pic of your flange where the pipe slides over that will show me the doughnut gasket in place?

 

[brandoz28]

where you're talking about there isn't a gasket or seal. to keep it from leaking go to your favorite parts store and get copper rtv. clean up the surfaces really really well, and seal it up and you're good to go!

 

[98blaster+4]

are the springs that hold it tight really worn out???

 

[Luni]

Wait, lets get on the same page here guys you are totally confusing me.

1) copper RTV will NOT seal the piece I need sealed

You got your flange. That flange bolts to the engine. Then theres a little ring for a spring. FMF pipe slides OVER the protrusion thats on that flange. There is NO seal between the flange and the pipe. Copper RTV would NOT hold that for long. At least in my experience on cars.

 

[fioz600r]

There isnt supposed to be a seal between the pipe and the flange.

The o-ring goes between the flange and the cylinder....

 

[brandoz28]

it'll hold. not talking about the red high temp stuff, there's stuff with copper that will hold it

 

[98blaster+4]

there should be a spring or two that holds the pipe tight to minimize leaking.
what i have done before was take and run a bead of red high temp silicone on the area where the pipe meets the flange. then without attaching the pipe let it dry, then when you put the pipe into the flange , the springs will hold it tight and the rtv will mold slightly to prevent leaks.

 

[MINIGfather]

not trying to hijack this thread. but my pro circuit leaks at the same place. i cant seem to get it to stop. im gonna make sure all surfaces are clean and re-install it...

 

[Luni]

are the springs that hold it tight really worn out???

FMF pipes only have 1 spring, and it MIGHT be worn out, it doesnt seem to move around. It just doesnt seal the greatest.

It doesnt seem right that thing doesnt have a seal on it. Everything Ive read about 2 strokes suggests that should be sealed and the engine shouldnt be able to suck air in through there if the opportunity arises. It also kind of defeats the purpose of the expansion chamber since high pressure waves move between the combustion chamber and the expansion chamber if it isnt sealed it will affect HP output and reliability.

Maybe Ill try some high temp copper stuff. I know what stuff youre talking about. I use it on engines alot.

 

[98blaster+4]

how hard is it to mount that thing with the flange already attached?
if its possible just take the pipe to a repair shop and have em weld it up solid, then when you mount it up use some of that sealant where the flange meets the cylinder and your sealed up tight as a drum.

 

[brandoz28]

i've always installed mine with the flange on it, several people on here have welded them together and been fine

 

[Luni]

Id like to just weld mine up actually. Maybe Ill just do that. I have a gasket between the flange and the head.