Yamaha V Star Classic - Answered Questions & Fixed Issues

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2005 model 650. It idles OK but why does it lose power when I get (to) about 1/4 throttle and only gets to 50 mph?

If your 2005 model 650 motorcycle is experiencing a loss of power and struggles to go beyond 50 mph when you reach about 1/4 throttle, there could be several potential reasons for this issue. It's important to identify the underlying problem to resolve the performance concern. Here are some common causes to consider:
  1. Fuel System Issues: Insufficient fuel supply or a clogged fuel filter can restrict the flow of fuel to the engine, leading to a loss of power. Check the fuel filter, fuel pump, and ensure the fuel lines are clear and not kinked.
  2. Air Intake Blockage: A blocked air filter or a clogged air intake system can limit the amount of air entering the engine, affecting its performance. Clean or replace the air filter as necessary.
  3. Carburetor Problems: If your motorcycle is equipped with a carburetor, issues such as a stuck float, clogged jets, or incorrect adjustments can lead to poor performance. Cleaning and tuning the carburetor might be necessary.
  4. Ignition System Issues: Faulty spark plugs, ignition coils, or ignition timing problems can result in incomplete combustion, leading to a loss of power. Check and replace any faulty ignition components.
  5. Exhaust System Blockage: A restricted exhaust system, such as a clogged or damaged muffler, can impede the flow of exhaust gases, affecting engine performance.
  6. Engine Compression: Low engine compression due to worn piston rings or cylinder head gasket leaks can reduce engine power. A compression test can help diagnose this issue.
  7. Throttle or Choke Cable Problems: A misadjusted or sticking throttle or choke cable can affect the fuel-air mixture and throttle response. Ensure that the cables are properly adjusted and move freely.
  8. Electrical Issues: Faulty sensors, wiring problems, or issues with the electronic control unit (ECU) can impact engine performance. A diagnostic scan might be required to identify electrical problems accurately.
  9. Valve Clearance: Incorrect valve clearance can affect engine performance. Ensure the valve clearance is within the manufacturer's specifications.
  10. Transmission or Clutch Problems: Issues with the transmission or clutch can result in power loss and limited top speed. Inspect and service the transmission and clutch components.
It's essential to perform a systematic inspection and troubleshooting process to pinpoint the exact cause of the problem. If you are unsure about diagnosing or fixing the issue yourself, it's recommended to seek the assistance of a qualified motorcycle mechanic or dealership. They have the expertise and tools to diagnose and repair the problem effectively.
7/29/2023 10:34:12 PM • Yamaha V Star... • Answered on Jul 29, 2023 • 40 views
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2004 Yamaha V Star Classic 650. How to hot wire it? I lost key and need to get home.

Question edited for a lot more clarity. Question moved from Cars and Trucks to model category. The days of hot wiring cars and motorcycles are long past. They all have alarms and immobilizers. Phone CAA or get a taxi. Or find the key, how can you lose a key? Where is the second key? All vehicles need 2 keys. https://www.google.com/search?q=2004+Yamaha+V+Star+Classic+650.+How+to+hot+wire+it ..
6/28/2023 5:05:38 AM • 2004 Yamaha V... • Answered on Jun 28, 2023 • 59 views
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Yamaha vstar 650 wont run without choke on

Buy a fuel injected bike !! LoL !!!
9/21/2021 4:50:37 AM • Yamaha V Star... • Answered on Sep 21, 2021 • 1,545 views
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2009 V Star Silverado. Why does it choke out when I throttle?

You have dirty clogged jets in your carbs. Remove the carbs and clean and clear the pilot jets and main jets.
2/20/2021 8:10:07 AM • Yamaha V Star... • Answered on Feb 20, 2021 • 81 views
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Why doesn't it start?

One potential issue that might be keeping your motorcycle from starting up is a clogged petcock. The petcock is a fuel control valve. It controls the gas flow between off, on, and reserve settings. More information about nmax
12/31/2020 6:43:10 AM • 2007 Yamaha V... • Answered on Dec 31, 2020 • 50 views
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V star 650 idles fine give it gas and it dies

Sync carbs ITS ALSO LEAN AIR/FUEL mixture screws if you know what your doing its an easy. Be sure the breather is TIGHT and fuel filter is turned in the right direction IT HAPPENS
10/11/2020 9:47:47 AM • 2006 Yamaha V... • Answered on Oct 11, 2020 • 7,385 views
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NOISY FUEL PUMP ON 650 YAMAHA VSTAR (2002)

your fuel pump suppose to Hum and gently vibrate only when working normally, clacking sound would only mean that it is having a hard time or inconsistently supplying gasoline into your engine. Have it checked and see if any improvement would happen.
3/14/2020 5:54:18 AM • 2002 Yamaha V... • Answered on Mar 14, 2020 • 1,080 views
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How do I adjust the idle on the 650 v-star classic

There is an adjustment screw under the carb on the left hand side
3/3/2019 11:07:58 PM • 2005 Yamaha V... • Answered on Mar 03, 2019 • 9,161 views
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I have a yamaha 2002 vstar classic and when I turn

As long as it goes off than its ok, its similar to a vehicle, when you switch ignition on the lights come on, when you start it they go off!!
2/20/2018 11:11:14 PM • 2002 Yamaha V... • Answered on Feb 20, 2018 • 211 views
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2002 Yamaha 650 v-star ,fuel tank building preasure and wont start,release tank cap and will start right up,

check the vent if clogged or damaged Yahoo Web Search
8/16/2016 1:58:10 PM • 2002 Yamaha V... • Answered on Aug 16, 2016 • 173 views
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Why does throttle valve move erractily whengiving it gas

Take it to a dealer or bike shop for a tune-up could be alot things
7/21/2016 6:01:44 AM • 2003 Yamaha V... • Answered on Jul 21, 2016 • 56 views
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Adjust clutch on 2003 Yamaha V-Star 1100 Classic

Adjusting the Clutch Cable - Lower End
  1. Loosen the adjustment at the clutch lever
  2. Remove: - Left Side Cover - Clutch Adjusting Cover
  3. Loosen the locknut
  4. Turn the adjusting screw in until it is lightly seated - Be careful, the screw will keep turning with enough pressure. Just turn it in lightly until it stops
  5. Turn the adjusting screw out 1/4 of a turn
  6. Hold the adjusting screw in place, tighten locknut
  7. Replace covers
  8. Check the clutch cable free play and adjust (at the bar end) as necessary.
Adjusting the Clutch Cable - Upper End Follow the procedure outlined in the Yamaha Owners Manual
6/2/2016 6:31:22 PM • 2004 Yamaha V... • Answered on Jun 02, 2016 • 1,183 views
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Why would oil light be on and just changed oil

Maybe sensor gunked up
6/2/2016 6:19:33 PM • 2004 Yamaha V... • Answered on Jun 02, 2016 • 37 views
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Getting no fire to plugs on yamaha 2003 650 v star classic, what are possiable solutions

Charge up your battery. Check spark plug gap, look into your ignition coil they may be bad, but try the first two before you look at ignition coil o.k , hope this helps you .
6/2/2016 6:14:12 PM • 2003 Yamaha V... • Answered on Jun 02, 2016 • 800 views
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What is plugged into the relay on my 2003 650 v

could be main relay, flasher relay, etc
6/2/2016 6:13:32 PM • 2003 Yamaha V... • Answered on Jun 02, 2016 • 52 views
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Throttle bogs down

there is a coating in fuel tank these bits loosen and go into carbs and block all jets, if you havent done this and this fixes problem you best put an inline fuel filter on bike to stop debris going into carb, these filters are good for a thousand miles i would recommend a car on like they used to have on old minis they are £1.98 on ebay
6/2/2016 6:11:54 PM • 2003 Yamaha V... • Answered on Jun 02, 2016 • 1,066 views
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How to attach windshield

try this vimeo.com > Adrian Beacham > Videos
6/2/2016 6:07:32 PM • 2003 Yamaha V... • Answered on Jun 02, 2016 • 27 views
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