Question about 1993 Yamaha FZR 600

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When i pull away my bike stutters to a halt,i lose the revs completely after starting it up again it seems to be fine, for a while the problem seems to be when i pull away especially in the wet

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  • Yamaha Master
  • 40,632 Answers

Hi, Sm007r6952 and the usual suspects are:
1. Severely discharged or a damaged battery, should have 12.5 volts or better and be able to pass a load test if necessary.
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. Spark plugs in bad condition or partially fouled.
4. Spark plug cables in bad condition and leaking.
5. Spark plug gap too close or too wide.
6. Faulty ignition coil, module, and or sensor.
7. Loose, dirty, or corroded ignition module connector at crankcase.
8. Faulty CKP or CMP, MAP, ETS, ATS, TPS, O2 sensor.
9. Intake air leak.
10. Water, dirt, or rust in the fuel system, carburetor and/or filter.
11. Fuel tank vent system plugged or carburetor vent line closed off.
12. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
13. Carburetor controls misadjusted.
14. Damaged carburetor.
15. Incorrect valve timing.
16. Weak or broken valve springs.
17. Damaged intake or exhaust valve.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below Good luck and have nice a day.
backfire sputter The FZR Forum
https://www.tradebit.com/filedetail.php/2864660-yamaha-fzr-600-service-repair-manual-pdf
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-fz-owners-manuals

Posted on Apr 01, 2016

5 Suggested Answers

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  • 2 Answers

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Posted on Jan 02, 2017

  • 1 Answer

SOURCE: bike stutters when started

check your fuel filter for or fuel lines for kinks,you may also check the grade of fuel

Posted on Jan 26, 2009

MakisRC51
  • 408 Answers

SOURCE: YAMAHAR1 STUTTERING

Renew the park plugs and check the diagnostic section in your dashboard for fault registered (need to go to a dealer's workshop)

Posted on Jun 03, 2009

  • 69 Answers

SOURCE: Revs itself

Did you turn the idle screw up by accident when you were messing with the carbs? On the right side of your bike there is a black knob..its at the edge of the fairing, slowly twist it to the left and see if the idle comes back down to normal.

Posted on Jun 07, 2009

herbmeister
  • 7 Answers

SOURCE: Engine cutting out when open throttle. YAMAHA NEOS 50cc MOPED

i had a simuler problem with my honda cr 250 moto-x bike it would start fine and you could keep it ticking over with the throttle(i have deliberatly unscrewed the tickover in case i come off,it will cut out) when i got on it,it would go for about 400-500 metres then splutter and die and not start again for around 5 mins. i immediatly knew it was a fueling problem. so after stripping the carb and giving it a good clean out i was baffled when i got back on and it still done the same. i then dismantled the fuel tap cleaned it all out and put it back together and tested it,it was very very slow so i unsrewed my fuel cap a little and was greated with the familur gush it should deliver. problem solved! the vent in my fuel cap had crystalised up,so the fuel was coming out but the air was not getting in,causing a vacuum and slowing down the flow and basically emptying the carb quicker than it can fill back up!!! clean your carb,fuel tap and any vents in your cap or tank. if this does not work then your bike must be over fueling or low on compression.

Posted on Sep 18, 2009

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