Presentation: High precision in the heart of the cylinder

The Compare support (or cylinder head pigement) is a workshop tool that screws directly into the well of bougie Cylinder head. It serves as a rigid guide to insert a dial comparator (analog or digital), allowing to locate the High Death Point (PMH) In the hundredth of a millimeter.

• Perfect ignition calibration: Essential to adjust the advance to the ignition of the 2-time internal rotor karting engines (such as KZ engines, Iame X30, Rotax, OK).

• Universal compatibility: Equipped with a standard thread M14 x 1.25, corresponding to the pellet of the vast majority of karting candles (NGK BR9EG, BR10EG, IW27, etc.).

• Zero flexion: Made of steel or CNC machined aluminum to ensure perfect stiffness, thus avoiding any false measurement during the rotation of the crankshaft.

- Technical specifications

- How to use: how to stall its ignition?

1. Installation: Remove the bougie Engine and screw the comparator holder by hand into the cylinder head. Tighten moderately.

2. Setting up: Slide the stem of your dial comparator into the bore of the bracket and block it slightly with the side screw.

3. PMH research: Turn the ignition rotor by hand. The comparator's needle will go up, stop, then go down. The highlight where the needle changes meaning is your High Death Point (PMH). Put the comparator dial to zero on this point.

4. Advance adjustment: Turn the rotor in the opposite direction of the walk to lower the piston of the value of the required feed (eg 1.5 mm before the PMH). All you have to do is align the marks of the stator and rotor.

💡 Michel's trick

"Want to adjust the ignition of a race engine to the eye 'or with a simple screwdriver by the hole of bougieIt's the best way to lose 2 horses or drill a piston! The trick: The pigement is screwed by hand. If you feel a resistance, do not force with a key, you may damage the aluminum thread of your cylinder head. My Pro Council: Once you have found your PMH with the comparator, make a small brand with indelible felt on your rotor and crankcase. It will allow you to make quick checks at the circuit without having to disassemble everything each time! "

❓ FAQ SEO (Frequently Asked Questions)

Q: Is the dial comparator included with the support? A: No, this reference includes only the metal support to screw. The dial comparator (usually at 10 mm stroke and 0.01 mm precision) is sold separately.

Q: Is it compatible with 4-stroke rental kart engines (Honda GX200 / GX390)? A: Yes, as long as the cylinder head uses a well of bougie At standard screws M14. Be careful, however, to the inclination of the bougie On some 4T engines that can distort the linearity of the measurement with respect to the vertical piston stroke.

Q: Can we use it to measure the squish? A: This tool is used primarily to measure the piston stroke for ignition. To measure the squish (the space between the piston and the cylinder head), the standard method remains the use of a tin wire inserted by the hole of bougie.