20 Most Recent 1978 Suzuki GS 750 E Questions & Answers


Hi, Jonathan before testing any electrical component in the Starting Circuit it is "IMPERATIVE" that you have a fully charged battery of 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage, the battery is faulty and must be replaced. AGM type batteries fall into this scenario more so than lead-acid batteries.
1. Ignition Switch not in the "ON" position.
2. Engine Run Switch in the "OFF" position.
3. Engine Run Switch is "FAULTY" or corroded.
4. Check the 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.
5. Bank angle sensor needs a reset or is faulty.
6. FOB battery low or dead.
7. Faulty ignition switch.
8. Faulty starter button.
9. Faulty kickstand, clutch, neutral safety switch.
10. Security alarm needs a reset.
11. Starter relay, solenoid, starter motor or circuit wiring faulty.
12. Starter armature or field coils have failed.
13. Main fuse or circuit breaker may be blown or faulty.
14. Faulty ignition relay.
15. The electric starter is working but starter clutch has failed.
16. Check for engine trouble codes.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.motorcycleforum.com/59-motorcycle-repair/92992-1978-suzuki-gs750-e-will-not-electric-start.html
What To Do If Your Motorcycle Doesn Start
https://www.onlymanuals.com/manuals/cars/suzuki/other_model/suzuki_motorcycle_suzuki_gs750
https://www.partsfish.com/page/oem-parts-for-suzuki
http://mybikemanuals.com/suzuki

1978 Suzuki GS... | Answered on May 15, 2019


Hi, Anonymous for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://motorcyclememoir.com/wp-content/pdf/Ignition-switch-cylinder-tumbler-removal-and-repair.pdf
Getting out GS450 Ignition switch Pretty much all early 80 models
1981 suzuki gs750 ignition replacement
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS750E-ES_Shop_Manual_1983.pdf
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS750_Service_Manual_early8valve.pdf
https://www.partsfish.com/page/oem-parts-for-suzuki
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS750E_1978_Owners_Manual.pdf

1978 Suzuki GS... | Answered on Mar 11, 2019


Hi, Anonymous after careful deliberation 4 out 5 Suzuki Gods give this one a thumbs up, but just to be on the safe side you should give your local dealer's parts/service department a call to confirm.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.dotheton.com/forum/index.php?topic=47359.0
Motorcycle Wheels Tires Tubes for Suzuki GS750 eBay
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS750_Service_Manual_early8valve.pdf
https://www.partsfish.com/page/oem-parts-for-suzuki
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS750E_1978_Owners_Manual.pdf

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1978 Suzuki GS... | Answered on Jun 25, 2018


Hi, Jerry for more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day. 1978 Suzuki GS750E carburetor parts Google Search
1978 Suzuki GS750 OEM Parts
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS750_Service_Manual_early8valve.pdf
https://www.partsfish.com/page/oem-parts-for-suzuki
http://gsarchive.bwringer.com/mtsac/~cliff/storage/gs/GS750E_1978_Owners_Manual.pdf

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1978 Suzuki GS... | Answered on May 19, 2018


I have seen this happen when they are running out of fuel . check all fuel system to be sure it is getting fuel properly

1978 Suzuki GS... | Answered on Jan 10, 2018


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
help oil leaking around exhaust pipe engine Motorcycle Forum
How to identify and repair leaks on your motorcycle
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Qfs3 and the usual suspects are:
1. Throttle cables improperly adjusted, pinched or need lubrication.
2. Idle adjusting screw needs to be backed off.
4. Air fuel mixture adjusted too lean start with 2 full turns.
5. Intake system air leak.
6. Fast idle choke ramp is not releasing.
7. Broken throttle return spring.
8. Damaged diaphragm or slide.
9. Faulty MAP, TPS, ATS, O2, sensors or wiring/connector.
10. Multiple carburetors not in sync.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.dotheton.com/forum/index.php?topic=4328.0
1977 GS 750 High Idle RPM Smoke steam from head
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, K_huffman engine "BOG" is mainly caused by a rich air and lean fuel condition but it can also be caused by a lean air and rich fuel condition this situation rarely occurs and is only caused by the misinformed weekend warrior that owns a toolbox.
The more you open your throttle the more vacuum you are creating in your carburetor venturi and your intake manifold. When you are operating at higher RPM any unmetered air that leaks into your system can become more obvious.
Unmetered air is air that is getting into your system after the fuel has been delivered. If you have unmetered air getting into your system between the butterfly/slide of the carburetor and the cylinder head this will create a lean condition.
All of the rubber components of the fuel system like vacuum hoses and intake manifold that you mount the carburetor to are made of rubber. If none of these components have been changed they are more than likely highly degraded and probably cracked in places to allow unwanted-unmetered-contaminated air into the combustion chamber. Check all of your vacuum lines and vacuum plugs for carburetor synchronization. The vacuum plugs are in the head just after the rubber intake manifolds. The petcock has a vacuum line as well as part of the emission system.
1. Check the intake manifold for fissures.
2. Ensure the bands used to tighten the manifolds down on the intake are secure and have not bound up the manifold.
3. Make sure air box fittings are not warped and fit completely over the carburetor.
Your airbox is metering air and is the first step in a process of consuming air and fuel. The system requires the resistance of the air filter in order to get the proper vacuum to "SUCK" the fuel out of the float bowl and create the proper venturi effect.
Improper mounting and sealing of the airbox will create a small lean effect. This might seem like no big deal but you are inviting dust and debris in your engine that is doing slow damage by not having proper fitment. Fix it so you know it's not contributing to your issue. Pick the low-hanging fruit first.
Do not go and start adjusting anything at this point. It ran fine before. There is something wrong with the assembly or a component. Do not adjust your floats. Get it back to where it was. The moment you start tweaking everything is the moment you lose OEM settings which are a must-have for fine-tuning and maximum performance.
Fine-tuning your carburetor and multi carb syncing come at the very end following the proper procedure established by the Carburetor Gods.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Thread My GS850 Bogs down when accelerated quickly
77 GS750 Bogs on throttle
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Bobsallthing and the usual suspects are:
1. Fouled spark plugs.
2. Severely discharged or a damaged battery should have 12.5 volts or more and be able to pass a proper "LOAD" test if necessary, you may have a preliminary reading of 12.5 volts or more but little or zero amperage the battery is faulty and must be replaced, AGM batteries fail in this scenario more so than lead-acid batteries.
3. 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.
4. Loose connection at ignition coil or plug between ignition sensor and module.
5. Spark plug cables in bad condition, shorting/leaking, spark plug cable connections loose check for spark leakage in the dark.
6. Faulty ignition coil or electronic control module.
7. Faulty pulse coil.
8. Faulty CKP, CMP, or BAS sensor.
9. Faulty ignition switch.
10. Tilt sensor needs a reset.
11. Security alarm failing to disarm needs reset
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.thegsresources.com/_forum/showthread.php?133966-77-GS750-No-Spark-Coil-amp-Condenser-Test
How to diagnose no spark situation on motorcycle
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Suzukingsgs750e the answer to this question is way above my pay grade for this situation, I would call or visit my local dealer or reputable shop's service/parts department and inquire about any possible quick fix, answers, or parts inquiry.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals
Suzuki GS750E
Suzuki GS series

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Paulgpx83 for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.louis.eu/rund-ums-motorrad/bike-datenbank/suzuki-gs-750-e/gs750/0133
What do you use for fork oil
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Mellissa for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Replacing your motorcycles Halogen headlight bulb
How to replace your motorcycle headlight
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.pnwriders.com/threads/mikuni-carbs-1979-suzuki-gs750l.173991
GS 750 fuel needle carburetor adjustment
How to adjust motorcycle carburetor floats
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Kenneth for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Total Motorcycle Forums
How to adjust motorcycle carburetor floats
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
https://www.louis.eu/rund-ums-motorrad/bike-datenbank/suzuki-gs-750-e/gs750/0133
Motorcycle Fork Oil Change Part 1
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Anonymous it should be noted that the "AIR FUEL" mixture screw adjustment "ONLY" manages your idle and has no effect on any other circuit also any intake leaks must be repaired before the A/F adjustment procedure can be performed otherwise you will never obtain a proper idle and you will waste a lot of time chasing the impossible. The A/F mixture screw's purpose is to fine tune the fuel charge entering the combustion chamber. The following applies to both 2 and 4 stroke engines:
1. The mixture screw may be sealed at the factory with a Welch Plug please review the following video for removal.
https://www.youtube.com/watch?v=wAXcksgvDkM
2. The mixture screw manages a range of 3 complete 360-degree counterclockwise turns from the bottom/closed position.
3. The mixture screw should have a spring and o-ring for tension and sealing integrity.
4. Turn the mixture screw clockwise until it gently bottoms out, this makes the fuel charge very lean and the engine should not idle if it does then the pilot/idle jet is too big and needs to be replaced with the next size smaller.
5. Turn the mixture screw 1 and 1/2 turns counterclockwise to establish a baseline for starting the engine.
6. To fine-tune the idle circuit, adjust the mixture screw 1/4 turn in or out to achieve maximum idle RPM, wait 15 seconds between each adjustment for the idle to settle.
7. Never go past 3 full turns out this will make the fuel charge rich, foul plugs, and produce black smoke out of the exhaust, if the engine RPM keeps increasing past 3 turns the pilot/idle jet is too small and needs to be replaced with the next size larger.
8. After achieving maximum idle back out the mixture screw another 1/8 of a turn then adjust the throttle cable idle stop screw to 950-1050 RPM.
9. This procedure works great on 99% of all engines, for the 1% that demand a more robust throttle response on aftermarket monster fuel delivery systems additional tweaking outside the box may be necessary.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
http://www.thegsresources.com/_forum/showthread.php?70950-Fuel-Air-screws-on-79-GS750-carbs
GS750 carb tuning help
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e



1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
1979 Suzuki GS750 vacuum line routing Google Search
https://groups.google.com/forum/#!topic/rec.motorcycles.tech/1H9LxFY224g
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
79 suzuki carb rebuild and adjustment
http://www.thegsresources.com/_forum/showthread.php?189057-Carb-rebuild-HELP-79-GS750
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e

1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, David for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Installing replacing your Suzuki Speedometer cable
Motorcycle Instruments Gauges for Suzuki GS750L eBay
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1978 Suzuki GS... | Answered on Oct 06, 2017


Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Suzuki, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
Adjusting 1977 Suzuki GS750 Valves Classic Motorcycle Repair Motorcycle...
Suzuki GS500 Valve Adjustment
http://www.vanluik.eu/Suzuki%20GS750%20Service%20Manual.pdf
OEM parts for Suzuki
http://mybikemanuals.com/suzuki/suzuki-gs-owners-manuals

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


1978 Suzuki GS... | Answered on Oct 06, 2017

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