Track Day
Check List
 

About Us
Overview of Swedetech Racing Engines

ICC Engines
ICC Pavesi 125cc and ICC TM K9 125cc

Moto Engines
Moto Honda CR125 125cc and Moto Honda CR80 80cc

Parts & Accessories
Components for intake system, carburetor, exhaust system, ignition, as well as power valve stuffers, o-rings, air filters & more.

Tech Tips
Recommendations for engine break-in and jetting, as well as what oil and spark plugs to use.  Specifics about top-end, reed and other replacement parts.

Contact Us
Physical address, phone number, e-mail address & shipping form.

Map & Directions
Yahoo map and directions, to Swedetech's facility.

 
 
Webmaster
1.4.05
 

Track Day - Daily Check List

 
 
Make it a habit to follow these recommendations and procedures, everytime that you go to the track.
 

Prior To 1st Practice

• Check for loose nuts & bolts.
• Check water in radiator and add tape if it is cold out.
• Check tire pressure.
• Check jetting, matching current conditions.
• Warm-up engine - Check for proper water flow.  Put your hand on the side of the cylinder and head...  If it gets uncomfortably hot within a minute, you do not have good flow.

Basic Jetting Rules

Always start rich and work your way down.

Start with the main jet...  Lean it out until you get the desired piston and plug readings.  Then work on the low to mid range, with the pilot and needle.

Assuming everything else is functioning properly, you can read the piston as follows:

• If the piston is detonating towards the exhaust side the main jet is too lean.
• If the piston is detonating towards the intake side the pilot jet and needle are too lean.

After Every Practice Session

• Do a plug chop, if possible.
• Evaluate operating temperature - Add / remove tape, as needed.
• Check tire pressure.
• Check spark plug and make appropriate jetting changes.
• Warm-up engine - Check for proper water flow.  Put your hand on the side of the cylinder and head...  If it gets uncomfortably hot within a minute, you do not have good flow.

End Of Each Day

• Plug chop - Check piston burn.
• Check reeds for breaks or cracks.
• Check for loose nuts and bolts.

Maintenance

• Change top end regularly - At least a ring every weekend and full top end every other weekend.
• Change transmission oil every weekend.