Just got my 72 commando on the road after buying it and shipping from Texas.
I have tried to sift through the info on the forum about tuning (trust me there's lots) but I'm still having trouble understanding exactly where I should be looking.
My first thoughts are this bike may need to be rejetted due to the altitude difference. That said I'd like to get other's input before going to that trouble. After a rainy spring, I'd rather ride then tinker.
Here's what I have found thus far;
1) the bike starts up first kick
2) after about 30 sec. with the choke on I can start to turn it off
3) Idles pretty good at about 800rpm
4) I get some popping during deceleration
5) the mixture screws were set about 3/4 turn from seated.
6) opening the mixture screws seems to help reduce the popping but makes the idle less consistent
7) the bike feels very well powered and smooth during acceleration and at freeway speeds
8) best I can tell, everything is stock and the carbs are amal 930's (number stamped on the side)
9) bike came from Keller Texas (709') (not sure how it ran there) I am in Calgary (3736')
I have only a rudimentry understanding of the mixtre screws and their function.
I would love to understand exactly how these function during idle and during running and would love to know the exact process I should use for adjusting.
I have no doubt that this is covered somewhere on this forum so perhaps it might be as simple as pointing me to that link
Thanks
Jeff
I have tried to sift through the info on the forum about tuning (trust me there's lots) but I'm still having trouble understanding exactly where I should be looking.
My first thoughts are this bike may need to be rejetted due to the altitude difference. That said I'd like to get other's input before going to that trouble. After a rainy spring, I'd rather ride then tinker.
Here's what I have found thus far;
1) the bike starts up first kick
2) after about 30 sec. with the choke on I can start to turn it off
3) Idles pretty good at about 800rpm
4) I get some popping during deceleration
5) the mixture screws were set about 3/4 turn from seated.
6) opening the mixture screws seems to help reduce the popping but makes the idle less consistent
7) the bike feels very well powered and smooth during acceleration and at freeway speeds
8) best I can tell, everything is stock and the carbs are amal 930's (number stamped on the side)
9) bike came from Keller Texas (709') (not sure how it ran there) I am in Calgary (3736')
I have only a rudimentry understanding of the mixtre screws and their function.
I would love to understand exactly how these function during idle and during running and would love to know the exact process I should use for adjusting.
I have no doubt that this is covered somewhere on this forum so perhaps it might be as simple as pointing me to that link
Thanks
Jeff