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Will not start 1978 Suzuki TS250

My 1978 Suzuki ts250 won't start. carburetor cleaned and still won't start. Any suggestions? @

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  • Suzuki Master
  • 6,080 Answers

Ignition components probly worn..sparkcables old on inside..coil shud b testd..module or points also. Compression cud b bad. Fuel flow may b hinderd or contaminated. First make sure batt is at 12.6v no less. If that hasa kikstart..replace batt w a capacitor thats sold at harley stores. Will b freestartn like a lawnmower

Posted on Jul 08, 2019

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  • Suzuki Master
  • 60,749 Answers

Hi, Kim and the usual suspects are:
1. Fuel tank empty.
2. The fuel tank has old dead gas.
3. Fuel tank bottom contaminated with ethanol sludge, dirt, water, rust, etc.
4. Fuel supply valve/petcock turned off.
5. Fouled spark plugs.
6. Engine flooded as a result of overuse of the choke.
7. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
8. Fuel valve/petcock or filter clogged.
9. Fuel line to carburetor or throttle body pinched, kinked or blocked.
10. Carburetor float stuck.
11. Fuel injectors clogged.
12. Fuel injectors stuck open.
13. Quick disconnect check ball stuck.
14. Compression below 75 PSI.
15. A stuck-bent-burnt valve.
16. Improper valve clearance (too tight)
17. 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 cursory 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.
18. 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.
19. Loose or corroded wire connection at the coil or plug between ignition sensor and ECM module.
20. Spark plug cables in bad condition and shorting check for spark leakage in the dark, cable connections are loose or connected to the wrong cylinders.
21. Ignition timing incorrect due to a faulty ignition coil, ignition module or MAP, CMP, CKP, O2, TPS, ETP, IAC sensors.
22. Faulty neutral, clutch, kickstand safety switch.
23. Faulty fuel pump or fuse or relay.
24. Faulty or corroded run/stop switch.
25. Tilt sensor needs a reset.
26. Security system not disarming alarm needs a reset.
27. 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/88604-suzuki-ts-185-wont-start.html
What To Do If Your Motorcycle Doesn Start
https://www.oldjapanesebikes.com/mraxl_GT_Resource/manuals/gt185man/index.php
https://www.partsfish.com/page/oem-parts-for-suzuki
http://mybikemanuals.com/suzuki

Posted on Jul 08, 2019

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6 Suggested Answers

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6ya staff

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Posted on Jan 02, 2017

Anonymous

  • 491 Answers

SOURCE: 1978 suzuki gs750 acts like it is not getting gas.

CHECK GASIC SEAL FOR ANY LEAKS.

Posted on Oct 16, 2009

Ron Stone

  • 398 Answers

SOURCE: 2003 suzuki rm 85 wont start cleaned carburetor,

if it has reed valves, check them for either cracked or broken pedals. also try starting it with the air filter removed. also make sure the choke is operating properly

Posted on Oct 22, 2009

kevingsuzuki

  • 752 Answers

SOURCE: suzuki swift carburetor vacume hose installation

: www.teamswift.net/viewtopic.php?f=31&t=42440 look here good luck

Posted on Feb 07, 2010

yammy_alf

wenceslao alfar

  • 666 Answers

SOURCE: carburetor

you need to dismantle it, cleaning kit needed and a air compressor / gas for washing. be familiarize everything when re-assembled.

Posted on Mar 26, 2010

Joe H.

  • 330 Answers

SOURCE: suzuki GS750 EX 1978 TSCC engine carburetor valve

see your parts dept at any suzuki shop.tell them what you want.(they will have pictures to compare and order)

Posted on Apr 16, 2010

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