Question about 1976 Suzuki GT 380

1 Answer

Where do I find an exhaust system for a 1976 GT-380?

Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.


    An expert that hasĀ over 10 points.


    An expert whose answer gotĀ voted for 2 times.

    Problem Solver:

    An expert who has answered 5 questions.

  • Contributor
  • 6 Answers

Rist00, hope you didn't click any of kkpp4's links. Looks like malware to me.

Anyway, you've got one of the tougher problems a GT-380 owner or restorer is going to encounter.

The exhaust system, specifically the frame tab for the passenger pegs was extended in what I think was about halfway through the production run. Low enough VIN and the 75 system fits. Higher VIN and it won't. The change in the frame tab required changing the rear mounting of the mufflers.

This one really baffled me because the Japanese simply do not go through the expense of retooling without a darned good reason to do so. In this case there was some retooling for assembling the frame but, more surprisingly, expensive retooling for the comparatively inexpensive exhaust system. And I can't tell that the passenger, which this bike was just barely gutsy enough to handle long enough for a difference to matter, got any benefit.

What you need to do is measure either of your outer pipes from the rearmost part where it mounts to the engine and to the bold on the muffler that goes to the frame or hole in it where the footpeg goes through. Off the top of my head, I don't remember which it uses.

When checking out a system on eBay, ask the seller for this measurement or at least the VIN of the bike the system came from.

When I restored a 76 GT380, I bought a parts bike for it and a loose exhaust system.

Neither fit. The parts bike was a 75, so I knew my problem was my bike was built after the changeover.

So if you find a VIN real close to yours (month of manufacture would help, too), chances are good the system will fit. But the only way to be sure is the measurement I mentioned.

If you measure yours and email the dimensions to me at, I'll measure the spares I've still got and we'll figure out something if we've got a match. Though I suspect you've tried ones and found they don't fit, so likely have an after-change bike, and as you know, the model was discontinued months later, making this a rare part.

Two other helpful bits if you haven't encountered them or for the benefit of other readers.

1. Baffles: Soak the heck out of the threaded part of the retaining bolt with an aggressive penetrating oil. I'm a WD40 guy, but for stuff like this, PB is the only game in town, IMO. You do NOT want to break these bolts. You should also generously spray where the baffle fits into the muffler. The friction fit here because of rust can be a show-stopper. Though it sounds awesome, don't run without properly packed baffles. Without changing main jets, you'll be dangerously lean and holing pistons, to the joy of your annoyed neighbors.

2. A local salvage yard that has more Suzuki GT bikes than anything else seemed to be a goldmine but the bikes were all outside and all hard wheels removed. So they're sitting on the ground right on the exhaust. I found a bike with a beautiful set of chrome expansion chambers, tipped it over, and there was nothing left of them from sitting on the ground.

Good like on what I assume is a restoration project. This is a terribly fun bike.

I got most of the way through mine and sold it to a friend of a friend who made an amazing cafe bike with it.

If this is part of a GT collection you're putting together, you might want to contact me on that, as well. I've got a sweet 76 GT-185 which has become the unobtainable bike of the series.

Good luck,


Posted on May 30, 2010


2 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya Mechanic can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repair professionals here in the US.
click here to Talk to a Mechanic (only for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 11 Answers

SOURCE: How do I set timing on 1976 suzuki gt 380

Send me your e mail address to I wrote an essay on how to solve your problem and ran into trouble getting this site to accept it. I'll tell you all you need to know. For goodness sake don't give the engine the slightest bit of throttle abuse until you have set the timing correctly. If you do, you run the risk of holing a piston.

Posted on Apr 22, 2009

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

1976 Ducati 860 GTS - backfire

Hi, Anonymous and the usual suspects are:
1. A severely drained battery.
2. Check battery terminals for damage or corrosion, check the battery cables at "BOTH" ends for loose, corroded, or broken connectors, "INSIDE" and outside the cable harness, perform connector wiggle test and check cables with an ohmmeter if necessary.
3. Faulty main circuit breaker and or connections.
4. Faulty ignition coil and or connections.
5. Faulty spark plug, oil or gas fouled, wrong heat range or service type, wrong gap, loose in the cylinder head, broken electrode or insulator.
6. Faulty spark plug cables, leaking or broken, internal damage.
7. Faulty ignition module, switch, CKP, MAP, CMP, sensor and or any connector in the ignition circuit could have corroded, loose, or broken pins/sockets
8. Burnt exhaust valve or air leak in the exhaust system.
For more information about your issue and valuable free downloads that you will need please visit the websites below. Good luck and have a nice day.
Backfiring Ducati 860 GTS GT 1976 1999 Service Repair Manual Download Manuals...
Ducati OEM Parts Fiche Lookup and Online Ordering
Ducati Maintenance

Mar 04, 2012 | 1976 Ducati 860 GTS

1 Answer

Where is the o2 sensor located on a 2006 mitsubishi eclipse gt 3.8v6 sensor 1 bank 1

Hi, your Eclipse is like Mitsubishi 380 V6. Bank 1 Exhaust is toward the radiator & sensor 2 would be attached to the exhaust pipe after your Catalytic converter. That is the second Oxygen Sensor on the front exhaust pipe which would be under the motor toward the muffler.
You can take a look at your exhaust pipe right it before it goes into your catalytic converter. Thats the approximate location of a great many o 2 sensors

Jun 19, 2011 | Mitsubishi Eclipse Cars & Trucks

1 Answer

Is the oil seal on the gear lever an inner or outer

The seal is the industry standard. It is an outer seal. It looks to be available at the site below.


Sep 23, 2010 | 1976 Suzuki GT 380

3 Answers

I have a 1976 Suzuki GT 750 LeMans that I am restoring, I'm having trouble location a manual and need to know what to gap the points and valves at. I have found a manual finally but can't wait for it to...

just to get it started?? i would set the points at half the plug gap, about 14 to 17 thou, intake valves at 14 and exhaust at 17, these are rough figures, once the engine is hot if the valves are noisy, wait for engine to cool and reduce gap 1 or 2 thou and try again, these are just numbers i would use when in need, good luck

Aug 02, 2010 | 1981 Yamaha XS 650 H

1 Answer

Boyer electronic ignition

yes, just got it put in ,misfiring and hard to start ,kicking back to

Mar 04, 2009 | 1976 Suzuki GT 380

1 Answer

Suzuki GT380 coils hot

Hi. I had a similar problem on an old Suzuki GS550. It use to start and run for a set time and then cut out and would not start until it cooled down for about 4/5 minuets. Then it would start and do the same, and the coils seemed to get quite hot. In my case it was the rectifier. Hope this is of help to you. Regards Tony.

Mar 03, 2009 | 1976 Suzuki GT 380

1 Answer

Suzuki GT380 keeps cutting out

Check the igintion coils they may be getting HOT.

Feb 28, 2009 | 1976 Suzuki GT 380

1 Answer

How do I set timing on 1976 suzuki gt 380

Send me your e mail address to I wrote an essay on how to solve your problem and ran into trouble getting this site to accept it. I'll tell you all you need to know. For goodness sake don't give the engine the slightest bit of throttle abuse until you have set the timing correctly. If you do, you run the risk of holing a piston.

Feb 01, 2009 | 1976 Suzuki GT 380

Not finding what you are looking for?
1976 Suzuki GT 380 Logo

219 people viewed this question

Ask a Question

Usually answered in minutes!

Top Suzuki Experts


Level 3 Expert

77514 Answers

Arnie Burke
Arnie Burke

Level 3 Expert

4536 Answers


Level 2 Expert

83 Answers

Are you a Suzuki Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides