Trying to find how we're spark plugs are - Trophy 1200 Triumph Motorcycles

5/8 spark plug socket .or a 5/8 deep well socket

Champion is the kind of plug. most are 5/8 of an inch.

Wrong Spark Plug or bad gas. Can you see the spark in the plug if you lay it on the cylinder?

SPARK PLUGS ARE INCORRECTLY FITTED

Rings! Don't know if this is 2 cycle or 4 cycle engine.If it is a 4 cycle engine you shouldn't have crankcase oil on the spark plugs.If it doesn't turn over,how is oil getting on the spark plugs? At any rate,I'd check for cracked ring or rings.

Changing things is not always the answer. What were the codes?

You need to pull the spark plug out, connect the spark plug wire and ground the plug to the motor and see if you have spark. If you have spark (bright blue) then it is a fuel problem. A yellow spark is and indicator of a coil issue.

According to what I can find, you don't need to take the intake manifold off:
3.5L Engine

1. Disconnect the negative battery cable.
   WARNING When disconnecting the cable, only pull on the plug cable boot, never on the wire itself!
   
2. Detach the spark plug cable from the spark plug.
3. Use spark plug wrench to remove the spark plug(s) from the cylinder head.
   WARNING Do not let any dirt or debris get into the engine through the spark plugs holes while when are removed.
   

To install:

1. Install the spark plug and tighten to 15-22 ft. lbs. (20-30 Nm). Do not over-tighten the spark plug.
2. Attach the spark plug wire(s) to the spark plug(s).
3. Connect the negative battery cable.

Hi imgonzalez10...

The Spark Plug part number is what you need if you are going to replace the spark plug because it is faulty,broken,ect.
When you go to the parts house to get the Spark Plug that is the number you will give them to get a correct new plug.

The Spark Arrestor is a device that goes on the exaust to stop sparks from being discharged from the engine into the enviroment.

Please take time to rate me

Check for spark, try pulling the wire and hold it near the engine while trying to start it, look for a spark to jump. If no spark replace the wire or the ignition coil. If you get spark try replacing the spark plug. if you get spark you should also pull the spark plug and see if the end of the plug looks wet if its not wet you aren't getting fuel and I can make some other recommendations.