05-22-2022, 07:29 AM
Just an intermediate tip for disconnecting the iacv;
The two windings of the iacv are 108 ohms each, they are; winding1 center contacts and winding two is between the outside contacts.
I just tried out if the engine would start and set a code ( the orange c.e. light ) and it did, i then connected two 470 ohm resistors in place of the iacv and the c.e.l. was still unhappy, i then put another two 470 ohm resistors in parallel with the first pair and the e.c.u. was happy with the 470:2= 235 ohm load per winding of the iacv and the c.e.l. did not light.
Then started the cold engine and it started immediately and ran at 1000 rpm.
The iacv would have been in the 1050 rpm state when the engine was switched off last and current temperature in the workshop is 16 deg C.
This may not be the best solution but i wanted to try this out anyway, it's a 50 cent 20 minutes fix.
My cb919 has a manual rpm adjustment and a mechanical choke cable, i never adjust or change the choke on it and have run it for 4 years at least.
I also have a 330 ohm resistor connected to my o2 sensor on the cb1100 ( courtesy of the ferret's advice ) connector with some electrical tape for years and enjoy a surge-free ride ever since.
Have not had a ride on the cb with the 470 ohm resistors to see what it's like but it is a start.
For the really techo guys i think it is worth connecting two 100 microfarad capacitors across the two windings, this may store/release enough energy to motivate the iacv by making the pulse last longer.
Realize this is not the final answer but wanted to let you know anyway
The two windings of the iacv are 108 ohms each, they are; winding1 center contacts and winding two is between the outside contacts.
I just tried out if the engine would start and set a code ( the orange c.e. light ) and it did, i then connected two 470 ohm resistors in place of the iacv and the c.e.l. was still unhappy, i then put another two 470 ohm resistors in parallel with the first pair and the e.c.u. was happy with the 470:2= 235 ohm load per winding of the iacv and the c.e.l. did not light.
Then started the cold engine and it started immediately and ran at 1000 rpm.
The iacv would have been in the 1050 rpm state when the engine was switched off last and current temperature in the workshop is 16 deg C.
This may not be the best solution but i wanted to try this out anyway, it's a 50 cent 20 minutes fix.
My cb919 has a manual rpm adjustment and a mechanical choke cable, i never adjust or change the choke on it and have run it for 4 years at least.
I also have a 330 ohm resistor connected to my o2 sensor on the cb1100 ( courtesy of the ferret's advice ) connector with some electrical tape for years and enjoy a surge-free ride ever since.
Have not had a ride on the cb with the 470 ohm resistors to see what it's like but it is a start.
For the really techo guys i think it is worth connecting two 100 microfarad capacitors across the two windings, this may store/release enough energy to motivate the iacv by making the pulse last longer.
Realize this is not the final answer but wanted to let you know anyway