What causes Throttle body sync causes rough idle/vibration on the Honda Cb 650r?

Listen for uneven idle, test throttle response at low RPM Estimated fix cost: $100-$200

What causes Cam chain tensioner noise on cold start on the Honda Cb 650r?

Cold start rattling near engine top end area Estimated fix cost: $150-$350

Inspect headers closely for rust, pitting, or discoloration Estimated fix cost: $50-$400

Oil residue or wet film below fork tubes Estimated fix cost: $150-$300

Known issues to inspect before buying a used Honda Cb 650r. What to check and how much repairs cost.

MODERATE

Listen for uneven idle, test throttle response at low RPM

Fix cost: $100-$200

MODERATE

Cold start rattling near engine top end area

Fix cost: $150-$350

MINOR

Inspect headers closely for rust, pitting, or discoloration

Fix cost: $50-$400

MODERATE

Oil residue or wet film below fork tubes

Fix cost: $150-$300

☐Cold start the bike before buying

☐Check service history for valve clearances

☐Inspect chain and sprocket wear

☐Test all electronics and ABS function

Very reliable, minor issues with neglected examples