A forum for owners of Yamaha TTR250 trail and enduro bikes!

Nugget · Member

What Spark plug!! ?.

Cubber · Super Guru

Steve, take a look at this very page - at the top is a blue horizontal line. Above the left hand of this line you will see some clicky things.

Click on the one that reads The TTR250 FAQ web pages and lo and behold you get transported to a cuddy-load of items.

One of them is Spark Plugs.

You could, of course, click this CLICKY THINGY.

Martyn

TTRfan · Super Guru

Hi Steve and welcome to the forum!

This is what you need:

NGK CR9E - Spark Plug The workhorse, at the heart of smooth-running engines around the world. OEM Quality
Triple-Gasket Sealing Process
Consistent Performance
Plug of Choice in Millions of Vehicles
Plug Specifications Thread Diameter - 10mm
Hex Size - 58
Firing End - V-Grooved center electrode
Resistor type

Nugget · Member

Thanks for your help

colin13846 · Senior Member

Is it worthwhile paying a bit extra and getting an Iridium plug - CR9EIX CR9E-IX ?

Lin · Senior Member

We use the iridium plug. They last longer, NGK claim improved combustion but think you'd be hard pressed to notice it. I think the longer life makes them a good choice. We ran them 30,000km in an XT Yamaha and the engines were still starting and running ok.