Question about 1994 Ducati 916

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Fuel delivery troubleshooting

I found spark at both plugs..... the lines in the tank and elsewhere do not appear to be pinched.... putting the tank back on...I don't know which lines go to which connectors on the tank.....one hose has an M on it

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The other does not.... any suggestions?On the hoses black is M and white is R right? The black goes on the tank to the forward one and the white to the rear one. On the tank, black is 'out' white is 'in'.,,,

Posted on Nov 10, 2008

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Posted on Jan 02, 2017

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2012 Velocity 150cc MP 150-6..


Hi, Anonymous and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Fuel line to carburetor or throttle body pinched or kinked.
8. Carburetor float stuck.
9. Fuel injectors clogged.
10. Severely discharged or damaged battery, you need 12.5 volts or better and be able to pass a load test if necessary.
11. 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.
12. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and CDI box.
Spark plug cables in bad condition and shorting check for leakage in the dark, cable connections loose, or connected to the wrong cylinders.
13. Ignition timing incorrect due to a faulty MAP, CKP, O2, TPS, sensors.
14. Faulty neutral, clutch lever, or kickstand safety switch.
15. Faulty fuel pump or fuse or relay.
16. Faulty CDI box.
17. A stuck bent or burnt valve.
18. Tip over sensor needs a reset.
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 a nice day.
Scooter Troubleshooting Scooter won start All about Scooters
The Ultimate GY6 Starter Ignition Troubleshooting Tutorial
http://www.49ccscoot.com/manuals/Arrow_150_Engine_Service_Manual.pdf
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http://www.49ccscoot.com/manuals/Baja_SC150_Owners_Manual.pdf

Oct 04, 2016 | Motorcycles

1 Answer

How do i fix my motorcycle honda wave dash fuel gas not continous flowing if i fixed the gas cover


Hi, Danilo always check fuel flow first to isolate the problem area otherwise the usual suspects are:
1. Fuel tank empty.
2. Fuel cap or fuel tank not venting properly.
3. Fuel filter clogged with rust or dirt.
4. Vacuum line to fuel valve clogged, cracked, pinched, bent, broken, or missing*
5. Faulty vacuum line switch/relay
6. Petcock clogged or diaphragm cracked, cut or torn*
6. Fuel line from the fuel valve/petcock to the carburetor clogged, cracked, pinched, bent, broken, or missing.
7. Vacuum lines to the mechanical fuel pump clogged, cracked, pinched, bent, broken or missing*
8. Faulty electric fuel pump and or wiring*
9. Fuel line from the fuel pump to the carburetor clogged, cracked, pinched, bent, broken, or missing*
10. Carburetor inlet fitting clogged.
11. Carburetor float and or needle and seat stuck.
12. Carburetor overflow line clogged, pinched, or bent.
13. Vacuum line from carburetor deacceleration valve not zipped tied*
* If equipped or applicable.
For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
Scooter Troubleshooting Scooter won run All about Scooters
http://www.scootertherapy.com/startinghints.html
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Honda Wave 110i User Manual

Aug 31, 2016 | Honda Motorcycles

1 Answer

Ran day before, now why won't it start?


Hi, William and the usual suspects are:
1. Fuel tank empty.
2. Fuel supply valve/petcock turned off.
3. Fouled spark plugs.
4. Engine flooded as a result of overuse of the enricher.
5. Vacuum hose to the fuel supply valve/petcock disconnected, broken, cracked, or pinched.
6. Fuel valve/petcock or filter clogged.
7. Discharged battery, 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.
8. Loose or corroded wire connection at the coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, cable connections loose, or connected to the wrong cylinders.
10. Ignition timing incorrect due to a faulty ignition coil, ignition module or sensors (MAP, CMP, CKP, O2 and/or BAS).
11. Security alarm needs a reset.
For more information about your issue please visit the websites below. Good luck and have a nice day.
Troubleshooting No Start Honda Motorcycle
troubleshoot motorcycle not starting
How To Get Your Motorcycle Up Running Randys Cycle Service


Dec 13, 2015 | GAS Motorcycles

1 Answer

My Honda shadow 1100 had a new tranny put on now she runs good at idle and up to around 35 mph the falls on her face and pips and crackles cleaned carbs no change any clue?


Pinched fuel line? Gunk in the tank? Plugged outlet that limits fuel flow. Likely the tank was removed to work on the rest of the bike, and was not put back such that the fuel lines were routed properly.

Jul 23, 2014 | Motorcycles

1 Answer

How to repair leaking fuel lines under the tank


Okay, prepare to get some gas on you. You need to drain the gas
You'll need:

1 pair hemostats or hose pincher
1 pair of wire cutters
1 screwdriver phillips or flat head
1 nut driver 1/4 inch or 5/16 inch
New fuel line. (cut 1 two inch piece and put the bolt in one end making a plug) = 2 inch plug
Hose clamps.
1 Bolt that will fit inside fuel line.(make line plug)

Pinch either side of the fuel line with hemostats. Cut the factory clamp off and pull the hose off. Put the 2 inch plug on the tank,and that will stop the gas from coming out. put a hose clamp on it if you want so it don't leak.
Now put a gas can under the pinched line and unpinch it and let the gas drain out of that tank.
When done draining , cut that hose off the tank and put it on the other side where that plug is. Remove the plug and put that line on and let that tank drain.
Once the tanks are drained., Just cut the hose to length and replace, using new hose clamps and new fuel line.
If your quick enough you can swap the hoses out without draining the tank.
You will get gas on you no matter what.

Dec 02, 2010 | 2000 Harley Davidson FLHTCUI Electra Glide...

1 Answer

How to remove the gas tank to replace the spark plug. I have already removed the seat and couple of screws. I have lifted and pushed down the gas tank but could not pull enough to reach spark plug. Please...


This has been answered elsewhere, but I'll reiterate. There are two bolts holding down the rear of the tank. Remove them and, assuming you've already disconnected the fuel lines, pull backwards and upwards on the tank at the same time, with a slight bias to the left. There are two rubber donuts in the front which the tank is just wedged onto. When the tank comes free, you still need to disconnect the harness and the speedo cable underneath.

Apr 01, 2010 | 2005 Suzuki Boulevard S40

2 Answers

2004 Honda VTX1300. Won't fire. Thought it might be out of gas, put two gallons in it. Tried to start it with the choke open and closed. Kill switch is on. Any suggestions? Battery is good, lights,...


Have you checked the spark at the spark plugs?
How this is done is take a spare spark plug that is known to be good. Pull the spark plug boot off and install the spare plug in the boot and lay it on part of the engine to get a ground. Know try and start the bike and see if there is any spark coming from the spare plug. Do this to every plug and remember to put the cap back on the plug after you test that plug. If there is spark then that rule out ignition. Now check out the fuel delivery. You say you have a couple gallons of gas in the tank. That's good!
1st check the petcock and make sure that it is not plugged buy removing the fuel line and putting it on PRI setting. This means Priming the carbs or injectors with gas. If that is OK put the line back on and check the fuel filter witch should be under the gas tank and see if it is plugged. 2nd check the fuel pump to see if it is working. How to test this is remove the fuel line from the pump that goes to the carb or injector and turn the bike on but do not try to start. The pump should squirt gas out as you turn the key on. If it checks out OK then it has to be something with the carbs/injectors. Just got to try a process of aliamation. Just remember Air-Fuel-Spark=Bang. Hope this helps out. Please let me know how it works out.

Oct 16, 2009 | 2003 Honda VTX 1300 Retro

1 Answer

Engine skips, won't go over 55 mph. Works fine below that.


Hi ..... Go through the above list, pay particular attention to fuel delivery ie blocked breather in tank, any filter fitted to tap or change in line filter if fitted. Easy to check, take off fuel delivery to carb (place container to catch fuel), start bike and fuel should come out a strong contant flow.
Let us know how you get on.

Jan 20, 2009 | 2004 Suzuki VL 800 Volusia

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