Replacement spark plugs for the Iltis?

[Phil Waterman]

Hi Pedro-

Normally I would agree with Grant that plugs shouldn't matter that much with minor fuel contamination such as a little diesel or oil in the gas. I commonly run synthetic 2 cycle oil when breaking in a new engine or running one that has set for a long time.

But I have encountered what you are describing on stale gas particularly the stuff with ethanol in it (basically all gas in US) this stuff seems to go stale very quickly 30-60 days and is a particular problem with carbureted engines that are not run regularly.

I've made it a rule with my vehicles never to try and fix a poor running or hard starting problem without putting fresh gas in. Generally I drain the tank in question with a siphon made up of an outboard motor fuel squeeze ball primer with a transparent fuel filter to check for trash and water. Then I dump in a few gallons of really fresh fuel. Amazing how often problem goes away.

Plugs acting like you describe can also be a symptom of a weak spark. Even if you have just check the entire ignition system check it again.

Does the Iltis have a electronic ignition or old style?


Cheers Phil

[Pedro Bedard]

Phil,
It has electronic ignition.
And I concur it does sound like a fuel problem. I'll get him to drain the tank (there isn't much in there anyway) and try again.
I've already found a source for new plugs, won't hurt to put in new ones after all...
Pedro