KLR Boost control maps
Here are the three known versions of the KLR boost control maps. The first and last (1989), I can say 100% came from the chip labels I’ve shown here because I read the chips myself from KLRs that I have. The middle one is based on researching forum posts and online tuner ROM databases.
In all versions, the boost target map is located at 0xC00 and the open loop CV map is located at 0xB00.
- The earlier variant, chip label 1267355131:

- The first update, chip label believed to be 1267355138, possibly introduced in late 86 or 87:

- The 1988 Turbo S/1989 variant, chip label 2227355531 (note the open loop map is identical to the 1267355138 version):

Raw map values
CV Open loop
- CV open loop, early version, chip label 1267355131:
| Throttle deg \ RPM |
1832 |
2003 |
2208 |
2393 |
2611 |
2873 |
3079 |
3316 |
3594 |
3922 |
4316 |
4544 |
4798 |
5401 |
5763 |
max |
| 57 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
| 61 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
54 |
54 |
48 |
48 |
48 |
| 65 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
73 |
73 |
69 |
67 |
61 |
58 |
58 |
| 69 |
115 |
115 |
115 |
115 |
115 |
109 |
108 |
106 |
104 |
100 |
96 |
86 |
76 |
73 |
69 |
77 |
| 73 |
154 |
154 |
154 |
154 |
138 |
125 |
121 |
117 |
115 |
111 |
108 |
102 |
94 |
88 |
81 |
92 |
| 77 |
191 |
191 |
191 |
175 |
161 |
148 |
144 |
138 |
134 |
129 |
125 |
121 |
109 |
104 |
100 |
115 |
| 81 |
191 |
191 |
191 |
175 |
161 |
148 |
144 |
138 |
134 |
129 |
125 |
121 |
109 |
104 |
100 |
115 |
| 90 |
191 |
191 |
191 |
175 |
161 |
148 |
144 |
138 |
134 |
129 |
125 |
121 |
109 |
104 |
100 |
115 |
- CV open loop, later version, chip label 1267355138*:
| Throttle deg \ RPM |
1832 |
2003 |
2208 |
2393 |
2611 |
2873 |
3079 |
3316 |
3594 |
3922 |
4316 |
4544 |
4798 |
5401 |
5763 |
max |
| 57 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
| 61 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
54 |
54 |
48 |
48 |
48 |
| 65 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
73 |
73 |
69 |
67 |
61 |
58 |
58 |
| 69 |
115 |
115 |
115 |
115 |
115 |
109 |
108 |
106 |
104 |
100 |
96 |
90 |
84 |
81 |
81 |
81 |
| 73 |
154 |
154 |
154 |
154 |
154 |
146 |
142 |
138 |
134 |
131 |
127 |
123 |
119 |
115 |
115 |
115 |
| 77 |
191 |
191 |
191 |
191 |
191 |
182 |
173 |
169 |
165 |
161 |
157 |
150 |
146 |
142 |
146 |
150 |
| 81 |
191 |
191 |
191 |
191 |
191 |
182 |
173 |
169 |
165 |
161 |
157 |
150 |
146 |
142 |
146 |
150 |
| 90 |
191 |
191 |
191 |
191 |
191 |
182 |
173 |
169 |
165 |
161 |
157 |
150 |
146 |
142 |
146 |
150 |
- CV open loop, 1989/Turbo S version, chip label 2227355531
| Throttle deg \ RPM |
1832 |
2003 |
2208 |
2393 |
2611 |
2873 |
3079 |
3316 |
3594 |
3922 |
4316 |
4544 |
4798 |
5401 |
5763 |
max |
| 57 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
38 |
| 61 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
57 |
54 |
54 |
48 |
48 |
48 |
| 65 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
76 |
73 |
73 |
69 |
67 |
61 |
58 |
58 |
| 69 |
115 |
115 |
115 |
115 |
115 |
109 |
108 |
106 |
104 |
100 |
96 |
90 |
84 |
81 |
81 |
81 |
| 73 |
154 |
154 |
154 |
154 |
154 |
146 |
142 |
138 |
134 |
131 |
127 |
123 |
119 |
115 |
115 |
115 |
| 77 |
191 |
191 |
191 |
191 |
191 |
182 |
173 |
169 |
165 |
161 |
157 |
150 |
146 |
142 |
146 |
150 |
| 81 |
191 |
191 |
191 |
191 |
191 |
182 |
173 |
169 |
165 |
161 |
157 |
150 |
146 |
142 |
146 |
150 |
| 90 |
191 |
191 |
191 |
191 |
191 |
182 |
173 |
169 |
165 |
161 |
157 |
150 |
146 |
142 |
146 |
150 |
Boost
- Target boost, early version, chip label 1267355131:
| Throttle deg \ RPM |
1832 |
2003 |
2208 |
2393 |
2611 |
2873 |
3079 |
3316 |
3594 |
3922 |
4316 |
4544 |
4798 |
5401 |
5763 |
max |
| 57 |
137 |
141 |
144 |
145 |
145 |
146 |
146 |
148 |
148 |
148 |
150 |
150 |
150 |
152 |
152 |
152 |
| 61 |
139 |
141 |
145 |
151 |
154 |
157 |
157 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
| 65 |
139 |
141 |
148 |
157 |
164 |
167 |
167 |
170 |
170 |
170 |
167 |
167 |
166 |
165 |
165 |
165 |
| 69 |
141 |
142 |
159 |
170 |
177 |
180 |
180 |
180 |
180 |
180 |
177 |
177 |
174 |
171 |
171 |
171 |
| 73 |
143 |
145 |
171 |
183 |
190 |
190 |
190 |
190 |
190 |
190 |
188 |
185 |
180 |
178 |
177 |
177 |
| 77 |
145 |
152 |
180 |
204 |
203 |
202 |
201 |
201 |
200 |
199 |
197 |
193 |
186 |
182 |
180 |
180 |
| 81 |
145 |
152 |
180 |
204 |
203 |
202 |
201 |
201 |
200 |
199 |
197 |
193 |
186 |
182 |
180 |
180 |
| 90 |
145 |
152 |
180 |
204 |
203 |
202 |
201 |
201 |
200 |
199 |
197 |
193 |
186 |
182 |
180 |
180 |
- Target boost, later version, chip label 1267355138*:
| Throttle deg \ RPM |
1832 |
2003 |
2208 |
2393 |
2611 |
2873 |
3079 |
3316 |
3594 |
3922 |
4316 |
4544 |
4798 |
5401 |
5763 |
max |
| 57 |
137 |
141 |
144 |
145 |
145 |
146 |
146 |
148 |
148 |
148 |
150 |
150 |
150 |
152 |
152 |
152 |
| 61 |
139 |
141 |
145 |
151 |
154 |
157 |
157 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
| 65 |
139 |
141 |
148 |
157 |
164 |
167 |
167 |
170 |
170 |
167 |
167 |
167 |
166 |
165 |
165 |
165 |
| 69 |
141 |
142 |
159 |
170 |
177 |
180 |
180 |
180 |
180 |
177 |
176 |
175 |
174 |
171 |
171 |
171 |
| 73 |
143 |
145 |
171 |
190 |
193 |
193 |
193 |
193 |
193 |
191 |
188 |
186 |
184 |
182 |
180 |
180 |
| 77 |
145 |
152 |
180 |
206 |
208 |
209 |
208 |
207 |
207 |
206 |
202 |
198 |
193 |
188 |
185 |
185 |
| 81 |
145 |
152 |
180 |
206 |
208 |
209 |
208 |
207 |
207 |
206 |
202 |
198 |
193 |
188 |
185 |
185 |
| 90 |
145 |
152 |
180 |
206 |
208 |
209 |
208 |
207 |
207 |
206 |
202 |
198 |
193 |
188 |
185 |
185 |
- Target boost, 1989/Turbo S version, chip label 2227355531:
| Throttle deg \ RPM |
1832 |
2003 |
2208 |
2393 |
2611 |
2873 |
3079 |
3316 |
3594 |
3922 |
4316 |
4544 |
4798 |
5401 |
5763 |
max |
| 57 |
137 |
141 |
144 |
145 |
145 |
146 |
146 |
148 |
148 |
148 |
150 |
150 |
150 |
152 |
152 |
152 |
| 61 |
139 |
141 |
145 |
151 |
154 |
157 |
157 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
158 |
| 65 |
139 |
141 |
148 |
157 |
164 |
167 |
167 |
170 |
170 |
167 |
167 |
167 |
166 |
165 |
165 |
165 |
| 69 |
141 |
142 |
159 |
170 |
177 |
180 |
180 |
180 |
180 |
177 |
176 |
175 |
174 |
171 |
171 |
171 |
| 73 |
143 |
145 |
171 |
190 |
193 |
193 |
193 |
193 |
193 |
191 |
188 |
186 |
184 |
182 |
180 |
180 |
| 77 |
145 |
152 |
180 |
206 |
206 |
206 |
206 |
206 |
206 |
208 |
206 |
206 |
206 |
206 |
206 |
194 |
| 81 |
145 |
152 |
180 |
206 |
206 |
206 |
206 |
206 |
206 |
208 |
206 |
206 |
206 |
206 |
206 |
194 |
| 90 |
145 |
152 |
180 |
206 |
206 |
206 |
206 |
206 |
206 |
208 |
206 |
206 |
206 |
206 |
206 |
194 |