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A misfire code is either plugs or injectors but if you are getting detonation (pinging sound ) then it may be faulty injectors letting in fuel ( incorrect amount of fuel) and at the wrong time . Detonation occurs from incorrect air/ fuel ratio and ignition timing and is spontaneous unplanned combustion . It occurs as the piston starts to compress the mixture and the fire occurs before the piston is near the top of the strake and so the piston is slapped hard against the cylinder wall. If left unattended it has the capability of melting holes in the top of the pistons
Hi Anonymous, try cleaning your speed sensor located on top of the transmissions right side between the top cover and the chrome starter end cap. Remove the the bolt that secures the sensor and pull it out of the transmission. Inspect sensor for obvious damage and repace if necessary. If sensor has no damage then wipe clean any obvious contamination like micro fiberous material with a clean rag and reinstall, torque bolt to 8 ft lbs. Please visit the website below for morinformation and good luck.
I'm going to guess at this one since I can't hear it. I'm going to guess a blown head gasket. People describe the noise in different ways. Some say it sounds like a squeak and I think it sounds like a whistle. Let the bike sit overnight and get stone cold. Before you try to start the bike, pull the spark plug wires off the plugs but leave the plugs in the heads. Open the throttle wide open but leave the enricher off. Turn on the ignition and press the starter button. Is the noise louder when you do this or is it louder when the engine is warm. If it's a head gasket, it should be louder when the engine is cold.
The only thing on the upper left side of the engine is the rocker arms and valve springs. There is a possibility that your friend got the center portion of the rocker box cover just a bit too close to one of the valve springs and it's hitting the center cover. Take a screwdriver and use it like a stethoscope and see if you can locate the noise. Feel the "alignment" of the lower, center, and upper rocker box covers. If the center and top cover are not in their proper position, this could be the problem.
I have same heater and problem-1) Check fuel inlet screens at bottom of hose in tank 2) Check air filters at fan module opposite end of the fan blade 3)Check for spark in ignition chamber 4) Check for fuel flow in ignition chamber (look at pressure gauge at opposite end from air exit) You'll have to remove the top cover to do these checks. The side covers will hang on each side ok. I hope these checks help you out.Good luck.
The hose goes to the VOES (vacuum operated electric switch) and the petcock if you have a carburated engine. The purpose of the VOES is to ****** the timing on your engine. Let me explain.
When you're cruising down the road with no heavy load, the electronic ignition unit will allow the ignition timing to go above 35° total. It does this to get higher fuel economy and lower emissions. When cruising, the throttle is not very wide open and the manifold vacuum is high.
But, the moment you accelerate, you open the throttle wider and the manifold vacuum drops. When this happens, the VOES changes state. causing the electronic ignition to ****** the timing back to where it should be. The reason you want to ****** the timing when accelerating is to prevent spark knock or pinging.
So, some will say that the VOES advances the timing when the vacuum is high. Others will say it retards the timing when the vacuum goes low. You choose what you think it does.