Make your own free website on Tripod.com





Products
Mopeds
Minibikes
Utility

Media
Photo gallery
Tomos history
Tomos racing
Moped fans

Links

Tech corner
BT 50 Engine Data
A5 Engine Data
Tuning
Troubleshooting
Spare parts

Editorials
A5 Colibri
Dealer horror stories
Testimonials
Tomos™ Nederland

White papers:
Gearbox oil Anti-theft

 
Home

Spark plug condition table

Brown or grayish color indicates correct running conditions White deposits indicate incorrect mixture oil ratio or use of low quality oil
Black deposits indicate too rich fuel/air ratio-try hotter spark plug Wet oil deposits indicate ignition system problem or worn-out engine
Melted electrodes indicate ignition timing problem or overheating-try cooler spark plug Increased gap between electrodes indicates worn-out spark plug-replace spark plug