Finally trying to sort out carb tuning (future posting) and I have encountered some questions on the vacume retard lines.
I have the original (or year appropriate) 22D distributor having both advance and retard vacuum units. AND I have the "vacuum assist control valve" attached to the linkage bracket under the carbs. I've replaced all the lines, elbows and other rubber fittings and am now confused with which line goes where.
Page 46 or TRF's TR250 specific parts book (the red one) shows the line from the advance routing to the bottom of the control valve with the retard line connected to the top of the front carb.
For kicks, Page 45 of the TR6 blue book shows the exact opposite routing. It has the retard heading to the control valve on the bottom of the fromt carb with the advance connecting to the top of the front carb.
What gives? I thought the 69 TR6 and the TR250 were identical when it came to carbs, dizzys and such.
Bentley and Haynes manuals offer zippy help on this.
I'm sure someone is going to tell me how to work around that vacuum valve but for originality sake, I'd love to know how it was supposed to be connected as well.
I have the original (or year appropriate) 22D distributor having both advance and retard vacuum units. AND I have the "vacuum assist control valve" attached to the linkage bracket under the carbs. I've replaced all the lines, elbows and other rubber fittings and am now confused with which line goes where.
Page 46 or TRF's TR250 specific parts book (the red one) shows the line from the advance routing to the bottom of the control valve with the retard line connected to the top of the front carb.
For kicks, Page 45 of the TR6 blue book shows the exact opposite routing. It has the retard heading to the control valve on the bottom of the fromt carb with the advance connecting to the top of the front carb.
What gives? I thought the 69 TR6 and the TR250 were identical when it came to carbs, dizzys and such.
Bentley and Haynes manuals offer zippy help on this.
I'm sure someone is going to tell me how to work around that vacuum valve but for originality sake, I'd love to know how it was supposed to be connected as well.