Probably has been asked. How to tell if an 883 has really been made an 1200
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https://www.hdforums.com/forum/sport...to-1200-a.html
Short of removing the cylinder heads, this is the easiest way to check:
You can actually measure the diagonal of the cylinder.
Jack up the rear wheel, take out both spark plugs
put the bike in 5th gear. Rotate the rear wheel
until the piston is at bottom dead center, BDC.
Use a wooden dowel or chop stick to feel when the
piston is at the bottom.
Then push the bottom end of the stick to the far side
of the combustion chamber and mark the end of the stick
where it hits the upper lip of the spark plug hole.
This is the diagonal of the chamber and it will be different
for a 1200 vs. a 883. Your measurements might be close to this.
For a 1200 it will be about 5 7/8"
For a 883 it will be about 5 1/2"
You can actually measure the diagonal of the cylinder.
Jack up the rear wheel, take out both spark plugs
put the bike in 5th gear. Rotate the rear wheel
until the piston is at bottom dead center, BDC.
Use a wooden dowel or chop stick to feel when the
piston is at the bottom.
Then push the bottom end of the stick to the far side
of the combustion chamber and mark the end of the stick
where it hits the upper lip of the spark plug hole.
This is the diagonal of the chamber and it will be different
for a 1200 vs. a 883. Your measurements might be close to this.
For a 1200 it will be about 5 7/8"
For a 883 it will be about 5 1/2"
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#8
I don't know how to tell if its been converted but I can tell you from work experience to look at all the nuts and bolts that are easy to see. This is the first step we use to see if a customer has done any work on the machines themselves. Cant hurt and wont mean it was a conversion done but its something that will give you some type of indication of work done. Look for any marks, nicks, or just any indication that a socket or wrench was used on that.
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