So I picked up a not running 02 Club Car with fe290 for 400 and it only runs at walking speed in grass. The spark was erratic at best so after removing the ground on the limiter it started and ran. I was getting a cherry red exhaust so I assumed I was running lean, Plug electrode was white as well. I installed new lines, filter, and pump but electrode still white. I added a new carb and now no more cherry red but still about the same very little power. When I’m in maintenance mode I can get full travel out of the belt from both pullys but when weight is applied to the cart it doesn’t have enough oomph to get into the power band and the belts all the way which results in low low end power and no top end speed. I have checked for air leaks and have none, checked valve clearance and compression is 150 exactly. Any other ideas?