Question about Yamaha YZF-R6 Motorcycles

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I have a 2000 yamaha r6 i have asked alot of people about cutting down my hindle slip on exhaust they say it will mess up the bike idle bad etc. if its not jetted is this true ..i would only be cutting it down like 5-6 inchs ..looking to make it louder

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  • Yamaha Master
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Cutting down the muffler will affect jetting, not just at idle

PS I dont agree with loud bikes, and it doesnt always make them faster.

Posted on Aug 22, 2010

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2 Answers

Runs idle stalls


If the engine runs fine at mid-range and upper rpm levels, and barring a lot of aftermarket bolt-ons (new pipes, air pods, etc.) I would perform some simple solutions first. Fire up the bike and run the engine for just 3-4 seconds, then shut it off. Feel each one of the exhaust pipes. All of them should be equally warm. If not, you have isolated the problem to an individual cylinder. This misfiring of a single cylinder can be due to a plugged jet, a bad spark plug, or a bad coil. If the bike has been parked for a while, you can easily add a bottle of Sea Foam (about $9 at any automotive store) or equivalent to the gas tank and see if that helps. Sometimes it takes a few runs to clean out the very small idle jets. Secondly, pull the spark plugs and read them. This is a bit involved on the R6 as you will need to pull the tank and the heat shield beneath it. Be very careful as this bike has coil-over plugs. If your exhaust pipe test revealed one cylinder not firing well, choose that one first and see if the plug is wet, blackened or excessively worn. Replace as necessary. There is a specific test for the coil which I won't go into here, but these bikes generate a lot of heat and burying the coil into the head really stresses them. Finally, join the R6 forum and see what others have done to correct this. It is a common problem with this bike. My identical bike to yours had a bad coil. Yamaha R6 forum is community for R6 enthusiasts covering news and...

Mar 05, 2014 | Yamaha YZF-R6 Motorcycles

1 Answer

Low idle when warm and wont start back up


Hi, Anonymous and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
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.
Wont start when hot bogs out alot in first wont idle normal Yamaha R1...
http://www.r6-forum.com/forums/58-exhaust-fuel-delivery/177793-06-r6-wont-idle-after-restart-when-engine-hot-help.html
1999 2002 Yamaha YZF R6 Service Manual R6 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jan 24, 2014 | 2001 Yamaha YZF-R6

1 Answer

2006 yamaha r6 wont idle when its cold


Hi, Anonymous and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
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.
07 r6 rough idle then stalls on cold start
http://www.r6messagenet.com/forums/r6-maintenance-technical/134582-please-help-2006-r6-cold-start-nightmare.html
2006 Yamaha YZF R6 Service Manual R6 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Feb 15, 2012 | 2006 Yamaha YZF-R6

1 Answer

Hi I have a 2000 r6 I so how fell off at 15 mph now you can start the bike but any attempt to open throttle bike stops same with any choke


Hi, Janetthurlow and the usual suspects are:
1. Idle circuit and transfer ports clogged.
2. Air fuel mixture adjustment too lean.
3. Pilot jet clogged.
4. Faulty accelerator pump.
5. Float level too low.
6. Float bowl contaminated old fuel, water, dirt, rust, etc.
7. Float bowl vent or overflow tube clogged.
8. Fuel flow to carburetor restricted.
9. Intake manifold leak.
10. The gas cap is not venting properly or fuel tank venting system blocked.
11. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
12. Needle and seat stuck closed in the float bowl.
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.
2001 R6 Dies when throttle applied
Bike idles perfect but dies when given the slightest amount of throttle 93...
1999 2002 Yamaha YZF R6 Service Manual R6 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Sep 17, 2011 | 2000 Yamaha YZF-R6

1 Answer

I have a 2000 r6, i get a lot of spuddering and like misfiring noise when i hit the throttle. when going at a low speed it seems like it starts to **** and want to cut off and when i go at a high speed it...


Hi, Dimundgirl69 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 check for spark leakage in the dark
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. Old dead or bad fuel.
12. Fuel tank vent system plugged or carburetor vent line closed off.
13. Vacuum line from intake manifold to fuel valve is broken, cracked, pinched, or missing.
14. Carburetor controls misadjusted.
15. Damaged carburetor.
16. Incorrect valve timing.
17. Weak or broken valve springs.
18. Damaged intake or exhaust valve.
19. Check for engine trouble codes
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.
http://www.r6owners.com/forums/archive/index.php/t-3515.html
http://www.r6-forum.com/forums/58-exhaust-fuel-delivery/128277-sputtering-2000-r6.html
1999 2002 Yamaha YZF R6 Service Manual R6 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Aug 18, 2011 | 2000 Yamaha YZF-R6

1 Answer

2000 yamaha r6 when the bike gets hot the engine shuts down


Hi, Garywabel and the usual suspects are:
1. Engine oil level and SAE weight are too low or not circulating.
2. Insufficient or blocked air flow over the engine.
3. Heavy combustion chamber carbon deposits.
4. Ignition timing retarded due to faulty MAP, CKP, or CMP sensor.
5. Carburetor jetted too lean.
6. Leaking intake or exhaust valve.
7. Water coolant old or low change every two years.
8. Water pump failure.
9. Radiator clogged, cap loose or malfunctioning.
10. Radiator fans not coming on.
11. Clutch slipping, brakes dragging, heavy load, towing a trailer etc.
12. Idling too long without moving.
13. For constant hot weather temperatures, mountain, or desert riding conditions consider adding an oil cooler and or cylinder head cooler.
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.
02 R1 gets hot and won start Yamaha R1 Forum YZF R1 Forums
1999 2002 Yamaha YZF R6 Service Manual R6 Moto Data Project
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

Jun 28, 2010 | 2000 Yamaha YZF-R6

2 Answers

Does a 2000 R6 need to be jetted when a K&N air filter is installed


No. K and N filters are snake oil. http://www.bobistheoilguy.com/airfilter/airtest1.htm

May 30, 2009 | 2000 Yamaha YZF-R6

1 Answer

Over heating


Hi, Mcoelho2 and the usual suspects are:
1. Engine oil level and SAE weight are too low or not circulating.
2. Insufficient or blocked air flow over the engine.
3. Heavy combustion chamber carbon deposits.
4. Ignition timing retarded due to faulty MAP, CKP, or CMP sensor.
5. Carburetor jetted too lean.
6. Leaking intake or exhaust valve.
7. Water coolant old or low change every two years.
8. Water pump failure.
9. Radiator clogged, cap loose or malfunctioning.
10. Radiator fans not coming on.
11. Clutch slipping, brakes dragging, heavy load, towing a trailer etc.
12. Idling too long without moving.
13. For constant hot weather temperatures, mountain, or desert riding conditions consider adding an oil cooler and or cylinder head cooler.
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.
http://www.r6-forum.com/forums/65-new-member-section/160259-02-r6-overheating-problems.html
http://www.r6messagenet.com/forums/r6-maintenance-technical/150256-02-r6-fan-problem-over-heating.html
Yamaha YZF R6T Supplementary Service Manual
OEM parts for Yamaha
http://mybikemanuals.com/yamaha/yamaha-yz-owners-manuals

May 22, 2009 | 2005 Yamaha YZF-R6

1 Answer

2000 yzf R6 inconsistant idle under choke cuts out when punched


Yes. Sounds like main jets are blocked. Gas will start to varnish after a couple of months. This builds up over time and sticks the main jets. Go to this website and select discuss this bike.http://www.bikez.com/motorcycles/yamaha_yzf-r6_2000.php

Apr 30, 2009 | 2000 Yamaha YZF-R6

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