cramer2603
New Member
Hey, guys. Switched gears and got a new project. I got this GN400 last summer after my uncle passed away. It was stored in a shed for about 36 years and I drug it out and am putting it back on the road.
What I’ve done so far:
Carb clean
Tires
Wheel bearings
Battery
Front brake system replaced
It started immediately after getting it home using starting fluid. Now it starts fairly easily and runs. But it constantly backfires and bogs down at low-mid rpms. It kind of breaks free at about 4K and will rev but backfires. This improved slightly after adjusting my float position. Lost spark a few weeks ago so I baked my CDI and regained spark. Today I adjusted the float again using a ruler to 23mm. Performance decreased.
So I know my CDI is suspect and my float height may or may not be correct. Can a CDI “kind of” work? Or is it an all or nothing? Anybody have any ideas?
Pics of rescue day and pic of two grown men on it for your entertainment.
What I’ve done so far:
Carb clean
Tires
Wheel bearings
Battery
Front brake system replaced
It started immediately after getting it home using starting fluid. Now it starts fairly easily and runs. But it constantly backfires and bogs down at low-mid rpms. It kind of breaks free at about 4K and will rev but backfires. This improved slightly after adjusting my float position. Lost spark a few weeks ago so I baked my CDI and regained spark. Today I adjusted the float again using a ruler to 23mm. Performance decreased.
So I know my CDI is suspect and my float height may or may not be correct. Can a CDI “kind of” work? Or is it an all or nothing? Anybody have any ideas?
Pics of rescue day and pic of two grown men on it for your entertainment.