Our high-definition engine decals transform your motorized bicycle into a show-worthy build in minutes. Follow these steps for a perfect, bubble-free application.
Before You Start
Gather Your Supplies
- Clean microfiber cloth or lint-free rag
- Isopropyl alcohol (rubbing alcohol) or glass cleaner
- Spray bottle with water + 2-3 drops of dish soap (optional wet method)
- Credit card or squeegee
- Masking tape (for positioning)
Prepare Your Workspace
- Work in a shaded area (direct sunlight makes adhesive cure too fast)
- Ideal temperature: 60-80°F (not too hot, not too cold)
- Allow a freshly painted surface to cure at least 2 weeks before applying decals
Application Steps
Step 1: Clean the Surface
Thoroughly clean your engine cover or gas tank with isopropyl alcohol. Remove all:
- Dirt and dust
- Oil and grease
- Old adhesive residue
Let the surface dry completely.
Step 2: Position the Decal (Dry Fit)
Before removing the backing, hold the decal against the surface to verify fit and placement. Use small pieces of masking tape to mark the position if needed.
Step 3: Apply the Decal
Dry Method (Best for Small Decals):
- Peel the backing paper away from the decal
- Carefully align and press onto the surface
- Use a credit card to squeegee from the center outward, pushing out air bubbles
Wet Method (Best for Larger Decals):
- Lightly mist the surface with soapy water
- Peel the backing and position the decal—the water allows repositioning
- Once aligned, squeegee from the center outward to push out water and air
- Allow 24 hours to fully cure before exposing to water
Step 4: Remove Air Bubbles
Small bubbles often disappear within 24-48 hours. For stubborn bubbles:
- Prick with a fine needle at the edge
- Press flat with your finger
Pro Tips
- Measure first: Our 4-stroke engine decals are 2½ inches diameter—measure your shroud recess before ordering
- Temperature matters: Applying in cold weather reduces adhesive strength; warm the surface slightly with a hair dryer if needed
- Don't rush: Take your time with alignment—it's easier to go slow than to remove and reapply
Jan 13, 2026