Tecumseh Part #611049 - Champion Spark Plug #RCJ8Y
Autolite 458
http://www.toro.com/home/customercare/interactivemanuals.html Snowthrowers Single Stage Snowthrower TOC Maintenance Spark Plug Conditions Page down to Replacing a Spark Plug
how to replace plug wire on a toro mower
Plug is Champion RJ18Y. Gap is 0.035 This is on page 12, in maintenance section of Toro S200 Snowthrower operators manual. Checked at local Advance Auto Parts store here in upstate NY (south of Rochester) and they cross referenced this plug and said to use Autolite # 86, Price $1.69 + tx
Champion RJ18Y
.030
Champion RJ19LM will work.
Get a spark plug socket and wrench that fits the plug body and remove it by turning counter-clockwise.
The correct plug gap for my Toro GTS 6.5 horse mower is 0.035
.025
The spark-plug gap for a toro 6.5 hp self paced walk behind lawnmower is a 0.035 spark plug. You can easily find nice spark-plugs for sale on sites such as eBay.
In order to change the spark plug wires in a Toro lawn mower, the engine housing should be removed. The spark plug wire will then be disconnected which is a simple twisting movement under pressure. This is a very quick procedure.