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There might be money riding on this question.

Patrick and I are trying to figure out the transition of the GT200 exhaust from a one-piece to a two-piece-plus-gasket unit. Neither of us can remember exactly when the transition happened, but that's not really the important part.

The question at hand: was there ever a time when the GT200 had a two-piece-plus-gasket exhaust that did not have the deflector at the gasket? I know for certain that early GTS models lacked the deflector, and were retrofitted with it. Did the GT production switch from a one-piece to a two-piece exhaust before or after that deflector was added?
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A specific question would be: Did anyone have to do the exhaust recall with a GT200?
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The reason for the inquiry is related to the melted oil screens.

thinking that deflected exhaust gas could heat the case and the oil within.
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I have a 2006 that blew its gasket and there was no deflector. And the hot gases did heat up everything in the vicinity.

When the recall started on the 250s it included my husband's and the dealer said that the 200's rear brake wire was further from the scene of the crime, that's why there was no recall on mine.

Is that what you're talking about?

Edit: probably it is
In which case, the answer is that Piaggio never did a recall on the 200s cause they weren't worried about the brake wire melting.

That's one of the reasons that I switched to an LV pipe.
⚠️ Last edited by Turtle_GT on UTC; edited 1 time
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ScooterGirlinAL's 2007 GT200

External inline image provided by member with no explanatory text
(looks like the gasket worked it's way up the manifold)
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What exactly is the deflector? Mine (2005) had a gasket, and it looked exactly like this, except of course for the sensor and different shield.

External inline image provided by member with no explanatory text
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My 2007 GT200 has the two part exhaust and the exhaust header does have the deflector on it. I tried to find it in the garage to take a picture but it's in a box some place.

But it looks like this has been answered. Seems there were three different designs for the GT.
⚠️ Last edited by oopsclunkthud on UTC; edited 1 time
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slomojoe wrote:
What exactly is the deflector? Mine (2005) had a gasket, and it looked exactly like this, except of course for the sensor and different shield.
Shortly after the GTS250 came out, they started blowing exhaust gaskets left and right, which could lead to a melted brake line (or worse). Piaggio did a recall campaign to replace the exhaust down pipe with a new one containing a welded-on collar (or deflector) which would prevent the exhaust gas from hitting the brake line should the gasket fail.

The GT adopted the two-piece exhaust of the GTS on later models, but it was unclear whether the GT started with the deflectorized two-piece exhaust or the undeflectorized two-piece exhaust. Looks like the answer is that the GT didn't have the deflectorized two-piece exhaust at first.
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mine is titled as an 2004
one piece exhaust......

no deflector......(err I don't think???)

how long is a recall in effect?
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Brodyfrompa wrote:
mine is titled as an 2004
one piece exhaust......

no deflector......(err I don't think???)

how long is a recall in effect?
.
You don't need a deflector because you don't have the graphite collar that blows out.
It goes where the 2-piece exhaust joins together.
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I have a 2006 GT, two pieces, gasket and no deflector.

I have had the gasket blow out while riding three times, the first time melting the rear brake line.

Finally went with Leo Vince after 36,000 miles and have had no problems with it after almost 4000 miles.
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Mine has a two piece exhaust without a deflector. The date of manufacture is May of 2006 according to the manufacturer's
statement sticker on the frame but because the tenth digit of the VIN is a 7, the DMV says it is a 2007 model.
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Harvey wrote:
ScooterGirlinAL's 2007 GT200

External inline image provided by member with no explanatory text
(looks like the gasket worked it's way up the manifold)
Looks exactly like mine a couple days ago.
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Mine had the deflector, but I never had a gasket blow out either. Replaced the exhaust at 14,000 miles (January) with a Leo Vince and am liking the pipe alot at 17,000 miles now (March). The gasket was about shot, though, when we pulled the old pipe off.
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I have a 2006 GT 200 and it has a two piece exhaust without any sort of deflector. I think the one piece exhaust to the two piece exhaust was a change after 2004 but I'm not really sure about that. By the way, I have am using the Motor Amore bronze bushing and have been for about 23,000 miles. I had to replace one because it split and migrated up the header pipe but John at Motor Amore took care of that for me for free. The GT200 header pipe is a slightly different size than the GT250 (smaller I think) and I think the fit was slightly looser causing it to migrate. I put a stainless steel clamp around the header to prevent any migration to be on the safe side now.
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I think my 2005 GT had a two piece exhaust...
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Why did they actually change to a 2 piece unit? My 2003 GT has a one piece and it works quite well apart from the rust. The 2 piece units mean you have to buy a gasket each time you remove the exhaust or change the rear tyre. If you don't there's a risk they melt the rear brake line. So what's the up side of the 2 piece unit?
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It's untrue you have to replace the gasket every time the exhaust comes off. Every few thousand miles, sure, which often co-incides with a tyre change when you notice it's worn, but in between the exhaust can be parted many times with care.

The advantage is ease of taking the exhaust off, reduced likelyhood of problems with manifold studs and nuts, and less stress on the downpipe with heat expansion.
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Thanks, I knew there had to be a reason but I couldn't work it out.
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05. 2 piece exhaust. I ended up welding it into a 1-piece.

That exhaust wore out and I bought a replacement that is a 2 piece. Haven't welded the new one. (yet...)
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forgot to ask.........can a 2 piece be fitted to where a one piece used to reside?

wondering if dealing with bushings are lot easier than studs......
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Brodyfrompa wrote:
forgot to ask.........can a 2 piece be fitted to where a one piece used to reside?

wondering if dealing with bushings are lot easier than studs......
Yeah, you can use either one.
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Okay, I've been following this subject for a while now. I guess the answer to the question Jess asked is that 2004 and earlier were one piece, 2005 and newer were two piece WITHOUT a deflector, 2007 was two piece WITH a deflector. I am really surprised there was ever a deflector in the mix. If there was ever a recall I never received anything from Piaggio for my 2006 GT 200.
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MichaelR wrote:
If there was ever a recall I never received anything from Piaggio for my 2006 GT 200.
I have it on good authority that there was never a recall for the two-piece undeflectorized exhaust on the GT. You didn't miss anything.

While the GT is vulnerable to exhaust gasket failure, it's a far bigger problem on the GTS, which runs much leaner and much hotter.
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jess wrote:
Brodyfrompa wrote:
forgot to ask.........can a 2 piece be fitted to where a one piece used to reside?

wondering if dealing with bushings are lot easier than studs......
Yeah, you can use either one.
good to know....thanks JEss......I think I would rather deal with graphite gaskets vs. replacing studs......them buggers are frustrating....now that I have done it twice(removing engine) its not bad, but replacing a graphite gasket would be loads easier..... whats your experience with studs....ie broken with 1 or 2 piece exhaust fitted?
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I have two '05 GT200Ls, both have two piece pipes without deflectors. I have made what I think you mean by a "deflector". Essentially, I used a worm type hose clamp to hold a sheet metal collar behind the bushing/gasket to keep it from being blown forward out of the joint between the two pipes.
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Richard H. Lemmon wrote:
I have two '05 GT200Ls, both have two piece pipes without deflectors. I have made what I think you mean by a "deflector". Essentially, I used a worm type hose clamp to hold a sheet metal collar behind the bushing/gasket to keep it from being blown forward out of the joint between the two pipes.
That's not quite it. The deflector is more like a really big washer welded to the pipe. It keeps the gasket in to some degree, but its real purpose is to deflect hot gases away from the brake line.

Apparently it directs them to the underside of the engine cases, though. Not sure if that's an improvement.
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