Preformance Build

CrispyLeaves98 said:
okay, dont i need a new plug for that?
Click to expand...
Ideally you would run your engine up to temp getting somewhere you can get on and go full tilt right from the get go and hold it pinned at full for about 10-15 seconds then lift while pulling in the clutch (right from full throttle) and kill the engine, come to a stop and pull that plug and ride home or where ever, to see the whole picture a plug chop is just that cutting the threaded area open to see the base of the porcelain and how high from the base the discoloration goes
plug chop.gif
. This is really for racer's or very high performing engines trying to get the most out out of it, you can simply read the plug and still get a very good indication of what's going on. Edit sorry yes with a new plug after the engine is warmed and your somewhere suited.
 
CrispyLeaves98 said:
We got my buddys bike built but his chain kept popping off, his engine is slightly off center case the spark plug is having fitting issues so we are going to try a spring tensioner, nothing we cant do though, we started it, sounded great.
Click to expand...
You have the alignment off or the rear sprocket isn't centered, common fault for new builders.

Take the chain off and spin the rear wheel and watch rear sprocket very carefully. Put a pencil or felt maker near the sprocket and slowly work it in until it touches as you spin it to find where the imbalance is at. it's a good idea to hold the maker on the drop down as you move it in to the sprocket.
 
Chainlube said:
You have the alignment off or the rear sprocket isn't centered, common fault for new builders.

Take the chain off and spin the rear wheel and watch rear sprocket very carefully. Put a pencil or felt maker near the sprocket and slowly work it in until it touches as you spin it to find where the imbalance is at. it's a good idea to hold the maker on the drop down as you move it in to the sprocket.
Click to expand...
okay, but couldnt this issue be caused by the engine being off center, with the spark plug on the side of the frame? I'll ask him to take some pictures, but we will go ahead and center the rear sprocket. do i just have to make sure they are all torqued down the same?
 
CrispyLeaves98 said:
okay, but couldnt this issue be caused by the engine being off center, with the spark plug on the side of the frame? I'll ask him to take some pictures, but we will go ahead and center the rear sprocket. do i just have to make sure they are all torqued down the same?
Click to expand...
No, the plug doesn't have anything to do with the chain popping off, there is the odd chain that just won't stay on, but 99% of the time it's the sprocket alignment.

Take the chain and the cover over the clutch arm off, put a straight edge on the rear sprocket, it should be inline with the engine sprocket.
You can just look down the chain too, if it looks like it goes in or out, it's going to pop off.
 
Chainlube said:
No, the plug doesn't have anything to do with the chain popping off, there is the odd chain that just won't stay on, but 99% of the time it's the sprocket alignment.

Take the chain and the cover over the clutch arm off, put a straight edge on the rear sprocket, it should be inline with the engine sprocket.
You can just look down the chain too, if it looks like it goes in or out, it's going to pop off.
Click to expand...
ok but like what im trying to say is the engine is not centered in the middle, it is tilted slightly. We will re alaign.
 

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