2014 800 terralander.  was just doing 25 klm along a dirt road and bike stalled, came to a stop, hit the start button...started and stalled. did this several more times and finally had to start it in gear and give it gas to get where i was going running rough and soon as i came to a stop it stalled.  let it set for hour or so and it started right up and been perfect ever since.       

anyone every experience anything like this bike only has 1700 klm on it and never driven hard..   tia.

new plugs and prob solved..

How did the old plugs look?  Where they original? And if so, how many miles on them?

I've seen a multitude of NGK plug failures in both Sea Doo watercraft & CFMOTO. The CFMOTO problem seems to be more prevalent when they see repeated on/off  start ups without getting up to temperature, such as moved in/out of a shop. I've not seen or heard of your stalling during a driving cycle when driving, more often a startup & dropping a cylinder.

The Sea Doo uses the same NGK plug & on occasion they drop a cylinder & it is the plug. I can hear those motors @ idle & the cylinder missfire. They are 3 cylinder & will run two.

The problem you describe stalling while driving, if it was hot I'm not sure it's a plug. Hopefully it is!

Wondering out loud if there is a preferred alternative to NGK

How did the old plugs look?  Where they original? And if so, how many miles on them?

they where black pretty much, only 1800 klm on bike at the time.  doing a lot stop and go short runs not good on the plugs.

Hi, did you use the same NGK plug, or you found a better alternative? Regards,

i use ngk again,    all good so far

If you want a vast overall improvement to hot/cold start, hot/cold idle, improved acceleration and improved fuel economy consider replacing your stock factory fit NGK spark plugs with an equivalent NGK replacement Iridium spark plug.

I fitted them to my CFMOTO C force 800 X8 Euro 4 spec V twin cylinder, liquid cooled, 4-stroke, SOHC, 8-valve, 800cc engine. It changes the whole running/handling of the machine, most importantly on overrun and throttling off to slow down there is now zero mini or maxi backfires. The stock fit NGK plugs have a large ceramic tip, after analysis I noted that they would turn to a brown colour, even after low miles and cleaning. This indicates overheating/glowing of the plug when engine reaches operating temp. Therefore, historically when I throttled off on overrun and get a slight backfire, the plug running hot and glowing would cause premature backfires as the combustion chamber ignited small residue particles of fuel.

Be "VERY CAREFUL" where you purchase these NGK Iridium plugs from, checkout the splinternet for issues concerning supply of "Fake" NGK Iridium spark plugs before you proceed. If the cost is too good to believe and too low, trust me it will be fake plugs. A guy on Ebay selling stuff from his bedroom, please avoid like the plague or these days Covid 19. A fake plug will destroy your engine, the tip will melt off inside your engine and terminate it.

Go to an exceptionally large Motorbike outlet, one that has a large chain of outlets nationwide, they cannot afford to sell fake goods their business cannot afford the consequences of selling fake goods. They will be dealing with and obtaining their NGK goods from your countries bespoke NGK agent/supplier, you will pay a premium price, but it will worth every penny or cent you spend.

Contact NGK direct in your country for confirmation but, in UK they recommend you leave the spark plug gapped as is from the box. They will also inform you that the plug requires zero cleaning or servicing if it is matched to the injection system and combustion chamber configuration on your bike it will clean itself. Because the tip of the Iridium plug is ridiculously small when compared to the stock plug there is zero after glow on the plug when hot and therefore in my experience zero mini or maxi backfires.

Take care enjoy your ride....Grandmaster Splash & his Furious Drive