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1) Check for spark remove one of the plugs, connect the plug wire to it and ground spark plug base to a good ground , such as the cylinder head , position the plug so you can see the electrodes , crank the engine over , a fat blue spark should be evident. 2)If the spark is good , check for one or more of the following possible malfunctions 1) Obstructed fuel line or filter.2) leaking head gasket(s)3) low compression. If the spark is not good, check one or more of the following a) Weak ignition coil(s) b) Weak CDI unit. c)Loose electrical connections. d) Dirty electrical connections. e)Loose or broken ignition coil ground wire. f) Broken or shorted high tension lead to the spark plug. Difficulty in starting. Check for fouled spark plugs, Improperly adjusted choke, contaminated fuel system, improperly adjusted carburetor,weak ignition unit,weak ignition coil (s), poor compression
Fouling a spark plug with unleaded fuel and wet fouling a spark plug with ethanol fuel is more common than you would think. Take out the old plug. Test for spark with a new plug. Then put in the new plug.
Make sure battery is up at least 11 - 11.5 volts
A low battery will spin over and sound like it should when cranking sometimes, but the starter will rob spark from the ignition and not fire due to low voltage
If there is no spark your points are probably dirty or just grounded out. Try a new points and condenser set. Install the points carefully so the new set does not ground. I assume you already tried new spark plugs and spark plug caps.
The spark plugs if they are blackish it means rich on mixture and thus they have fouled up and will give you hard start. If they are brownish whitish tht means they are ok, and if they are whitish means the engine is running lean.
Since you checked the the fuel pump and after removing the pipe fuel gushed out it proves tht the pump is functioning.
Getting back to spark plugs....remove one of the spark plugs and earth it on the cylinder head somewhere and fix the lead head to it and thn crank start the engine and see if theres good bluish sparks at the spark plug.
I would recommend you first to examine the spark plugs , replace them if necessary and try to start it.
Hope this helps!
hello and welcome
as i understand the vtx cranks but does not start. a good place i would start to look is the spark plugs. first you can verify that the plugs are not blackened over and wet. this would happen from fouling. with the vtx not turning over properly with the old weak battery alot of fuel was used in the cylinders and possibly fouled them out. ive seen that be a very popular problem. the other it to check for spark if the plugs appear to be fine. this can determine if something was faulted in the ignition.
Does it have a stock pipe,carb,any modifications! If its stock,I would put a new ring and piston in it,it seems like your getting a lot of blowby,also make sure your air filter is clean. It would help if you used an iridium spark plug.
Do you have fresh gas in the bike? Try changing the plugs with new ones and check for spark. You can do this by putting the new plugs on the plug wire and grounding it to the head on the engine crank the motor over you should see a bright blue spark. Check one plug at a time. No spark check the ignition wires and coils. As for the oily plugs it could be they are just fouled caused by either flooding the motor while trying to start, bad plugs, week coils, bad gas, poorly adjusted carb's. I would start with the plugs and work my way back to the carbs. Still fouling the plugs after all that start checking the engine, ie compression check ect.
The first thing I would do is replace the spark plugs again. You can foul a plug and it will cause you more problems than you can ever imagine. I see you have done all the logical things that I would recommend but I did not see you have replaced the plugs after the 200 miles. You would be surprised at how many times a $2.00 part can cause fits beyond belief.
Auto or manual choke? Could be out of adjustment. Cold engine idle speed may be too low. Fouled sparkplugs may be producing a weak spark (always buy high quality plugs). Maybe a weak coil. Make sure it's covered at night. Do they sell electric dipsticks for MC's? Hope you find the problem. Good Luck.