Deciphering the code on my ignition switch!

[Guest]

The only key I have for '80 750L is cheap and soft 'Curtis' recut and its starting to show its age. I want to cut a fresh, factory correct key from the codes everyone talks about and I have a blank NOS Suzuki key that I found on eBay.

I took the ignition off (I figured this is the most important source for a code out of all the locks on the bike) and found a punched code that doesnt match any of the '3-digit' codes everyone talks about. It looks exactly like this:

Ɵ98119-0

That little Theta symbol is about half the size of the characters that make up code itself.

I took spare key I have, the new key and the code to a locksmith and he said the numbers did not match the rises & falls on my old key (he also did not find any such code on his computer) and offered to blueprint a key for me by disassembling the lock cylinder for $60 labour +cutting costs = $75 w/ tax.

Do I have a 'special' lock cylinder or something?

[tkent02]

Did you try the key guy on eBay,? Did you ask if the three digit code looked right for your key?

[hikermikem]

Check the helmet lock, look closely near the entry slot & there may be a very faint number stamped there...

[oblique]

Did you try the key guy on eBay,? Did you ask if the three digit code looked right for your key?

I bought the key from a general seller, not a guy who specialized in cutting them.

Check the helmet lock, look closely near the entry slot & there may be a very faint number stamped there...

I was under the impression the seat lock and helmet locks are not as deep as the ignition ie. the ignition switch uses more teeth to actuate.

[GSX1000E]

Remove your seat lock and look underneath it. Your three digit code is there.

[Steve]

I was under the impression the seat lock and helmet locks are not as deep as the ignition ie. the ignition switch uses more teeth to actuate.

The lock may, indeed, be different, but it will still have the same number.

.

[oblique]

Remove your seat lock and look underneath it. Your three digit code is there.

If I may inquire, how do you cut a key with more than 3 profile changes along its length from a 3 digit code?

[posplayr]

If I may inquire, how do you cut a key with more than 3 profile changes along its length from a 3 digit code?

A unique one to one mapping from R3 to RN. Elementary coding theory. Even heard of spread spectrum communications? R1 (binary) is mapped into pseudo random sequences which can be RN where N is very large and non repeating. It could be as easy as 0 = dogbert, 1=mona lisa; both dogbert and monalisa live in an infinite dimensional space, but can be differentiated with a single bit.


If you find the right person, they just look up the profile from the code. I know I have done it and have a locksmith in SB CA if you cant find another.

[rustybronco]

I think the number of permutations of a 5 depth by 5 position cylinder would by 250. If that is the case I guess they wold start with a number, 150 for instance, then add the number of combinations (somewhat less that 250 as we wouldn't want all ones on a key) chosen to that number and come up with the ending number

[posplayr]

I think the number of permutations of a 5 depth by 5 position cylinder would by 250. If that is the case I guess they wold start with a number, 150 for instance, then add the number of combinations (somewhat less that 250 as we wouldn't want all ones on a key) chosen to that number and come up with the ending number

If I had 4 bit of either 0 or 1, that is 2^4 =16
If I had 5 positions of depth 5 that would be 5^5 combinations
5 raised to the 5th power is 3125 combinations

There is an exact formula for permutations, but an inductive demonstration is hopefully more appropriate.

[rustybronco]

That's why I said think.

[chuck hahn]

The 3 digit code when looked up tells what the 5 notches are set at for the machine to recut a key.

[chuck hahn]

Did you look at the key itself for anything stamped on it?? Got the owners manual..sometimes a previous owner might write it inside a cover??? Why cant the locksmith cut one from the one you have thats working??

[oblique]

I will check the the other locks for codes. The key I have works but its worn...I want a fresh cut on a better key for longevity.

[JTGS850GL]

A unique one to one mapping from R3 to RN. Elementary coding theory. Even heard of spread spectrum communications? R1 (binary) is mapped into pseudo random sequences which can be RN where N is very large and non repeating. It could be as easy as 0 = dogbert, 1=mona lisa; both dogbert and monalisa live in an infinite dimensional space, but can be differentiated with a single bit.

Just curious if you ever worked with Jacobs? I trained at Qualcomm when OKI Telecom first developed a CDMA chipset. Very interesting guy.