Ignition Points & Timing Plate Allen Head Mounting Screw Set | Honda CT90 / Trail 90

Description

Ignition Points & Timing Plate Allen Head Screw Set | Honda CT90 / Trail 90

The factory screws holding your points and timing plate aren’t Phillips — they’re JIS, and a Phillips driver strips them on the first hard turn. After decades of tune-ups with the wrong screwdriver, most CT90 timing plates show up with at least one screw rounded over or seized. This stainless steel allen head set replaces every one of those screws with hex-drive bolts you can actually grip. Complete kit with washers. Does not include the plate or the points.

Why You Need This

The CT90 runs a single set of points, and you’ll be back in there often — we set CT90 timing with every oil change, about every 1,000 miles. Honda used JIS (Japanese Industrial Standard) cross-head screws on the points and timing plate. They look almost identical to Phillips, but the drive angle is different, so a Phillips bit cams out and rounds the head the moment it fights back. Stainless allen bolts give you a positive grip that won’t cam out, and they won’t rust or seize in place the way the plated originals do.

Specifications

Installation

Difficulty: Beginner

Tools needed: JIS 2 screwdriver (to back out the old factory screws without chewing them up) and an allen key for the new bolts.

1. Remove the points cover from the engine.
2. Back out the factory screws one at a time, replacing each with the matching allen bolt and washer from the kit. Use a properly fitted JIS 2 driver; if a screw is already stripped, you may need an impact driver to start it.
3. Snug the new bolts — do not overtighten. The timing-plate threads strip easily if you crank down on them.

Watch the points-mounting bolt: the bolt that holds the contact points has to seat perfectly straight, with its washers stacked so the head clears the rocker arm. Take your time on that one — if it sits crooked, or the points wire grounds out against the plate, the bike won’t fire.