Question about 2003 Honda VT 750 C2 Shadow
Honda shadow 750 spirit runs fine at low RPMs but when going down the high way at about 70mph within a few minutes it sputters like it's out of gas and stalls has a full tank of gas. the issue just started. any help? red light for overheating doesn't come on until after the bike stalls out. and does not do it every time. bike runs perfectly at lower speeds and lower rpms. @
Hi, Adamjohncuts and the usual suspects are:
1. 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.
2. Failed alternator/generator and or voltage regulator.
3. Loose or corroded battery terminals and or cables especially the "NEGATIVE" cable, look for loose, corroded, or broken connectors inside the cable harness at "BOTH" ends.
4. Failed main circuit breaker or ignition switch, check for loose connections and continuity.
5. Failed system and or ignition relay, check for continuity.
6. Failed ignition coil, stator, magneto, ignition/electronic module.
7. Failed CKP, CPS, CMP, MAP, TPS, or BAS sensor, corroded, loose or broken wire connector pins/sockets.
8. Throttle cables and or idle speed improperly adjusted hot idle speed should be 950 RPM to 1000 RPM.
9. Faulty neutral, side stand or clutch lever safety switch.
10. Faulty or corroded kill switch.
11. Accelerator pump damaged or not working.
12. Water or dirt in the fuel system, carburetor or filter.
13. Restricted, blocked or kinked fuel line.
14. Fuel tank empty.
15. The gas cap is not venting properly or fuel tank venting system blocked, loosen gas cap and go for a test ride.
16. A failed fuel pump, pressure regulator and or fuel injectors.
17. Vacuum line from intake manifold to petcock broken, cracked, or not attached, carburetor vent line plugged.
18. Needle and seat stuck closed in the float bowl.
19. Petcock clogged or damaged.
20. Lean angle switch is faulty or needs adjustment.
21. Catastrophic engine failure, perform a compression test.
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.
Can anyone help my bike died while riding
Honda Shadow Spirit 750 problems long post motorcycles
Honda 1998 VT750C Service Manual
Honda VT750C Owner Manual
Posted on Jan 06, 2018
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
Here's a link to this great service
Posted on Jan 02, 2017
It is different then most other carbs. DON"T DRILL ANY BRASS HEADS LOOKING FOR THE AIR FUEL MIXTURE. The air fuel mixture is the only adjustment you can make. It is located on the bottom side of the air intake, right behind the air filter box. It looks like a 1/4" flat metal plug. Do NOT drill this. There is no slot for a screw driver. There is a tool which is no more then a small piece of pipe that fits over this plug and you turn it in till seated, gently. Count the turns. Back out to 2 and a half turns, thats normal. Or if you no that you need more fuel injected, simply turn the screw OUT 1/4 or 1/2 turn and try it. GOOD LUCK (Its not hard)
There is no drilling to be done. Hope i didnt scew something up on mine......
Posted on Sep 03, 2009
Be sure to properly oil the K&N filter after you've cleaned it. Then verify that the jetting is correct by operating at full throttle (only for as long as safe conditions will allow) then stop the engine and look at the color of the spark plugs. White coloration of the plugs = too lean. Dark spark plugs = too rich. A nice tan or light brown color = perfect.
Running with jetting that's too rich, or too lean, can both cause driveability problems, poor performance and reduced spark plug life.
While you're in there, inspect the spark plug caps for damage, cracking, and signs of electrical 'leakage' (carbon tracking which are conductive, visible lines running down the length of the cap, inside or out). Replace any plug caps that look suspicious. Tip: WD-40 works as a great, non conductive cleaner for plug caps and high tension leads.
Posted on Nov 05, 2009
An engine never misfires due to these things. It is always because of maladjustment of the timing at the CB points. Check the timing and set it right.
Posted on Apr 06, 2010
Tips for a great answer:
Oct 13, 2017 | 2003 Honda VT 750 C2 Shadow
Jan 01, 2014 | 2003 Honda VT 750 C2 Shadow
Mar 25, 2013 | 2003 Honda VT 750 C2 Shadow
Sep 14, 2012 | 2003 Honda VT 750 C2 Shadow
Aug 14, 2012 | 2003 Honda VT 750 C2 Shadow
Apr 20, 2012 | 2003 Honda VT 750 C2 Shadow
Jul 30, 2011 | 2003 Honda VT 750 C2 Shadow
Nov 19, 2009 | 2003 Honda VT 750 C2 Shadow
Oct 26, 2009 | 2003 Honda VT 750 C2 Shadow
Sep 03, 2009 | 2003 Honda VT 750 C2 Shadow
Jun 21, 2018 | Motorcycles
64 people viewed this question
Usually answered in minutes!
Step 2: Please assign your manual to a product: