What causes Cam chain tensioner wear, noisy top end on the Honda Cb750?

Listen for rattle at idle and 2000rpm Estimated fix cost: $150-$600

What causes Carburetor gumming from sitting, poor idle on the Honda Cb750?

Cold start, idle sync, fuel leaks at bowls Estimated fix cost: $200-$500

Battery voltage 13.5-14.5V at 3000rpm Estimated fix cost: $150-$400

Rock rear wheel side to side for play Estimated fix cost: $100-$300

Known issues to inspect before buying a used Honda Cb750. What to check and how much repairs cost.

MODERATE

Listen for rattle at idle and 2000rpm

Fix cost: $150-$600

MINOR

Cold start, idle sync, fuel leaks at bowls

Fix cost: $200-$500

MODERATE

Battery voltage 13.5-14.5V at 3000rpm

Fix cost: $150-$400

MINOR

Rock rear wheel side to side for play

Fix cost: $100-$300

☐Compression test all four cylinders

☐Verify title, VIN, engine numbers match

☐Check fork seals and steering head bearings

☐Cold start it yourself, no pre-warming

Very durable if maintained; neglect is main risk