Thanks Mike,Handy to know,I managed to get my hands on an NGK BR8EGP today which is also compatible,Tomorrow i'm taking the CRM to a local motocross mechanic to change plug,Clean carb and power valve,Determined to get this bike running right!

I have a Honda CRM250AR in Thailand and have been trying to get an NGKBR8ES spark plug for it,Every shop and Honda dealer has told me they can't get hold of one,Its driving e crazy now and i wondered if there is an alternative plug that works that i can purchase out here??

Many 2T Trials bikes and 4 stroke trails bikes,I will change the plug today and see if it makes any difference

It just jerks quite hard and lurches forward then stops then lurches forward etc,Its strange,feels like fuel has been cut!

I Have a CRM250AR and recently it has started stuttering after 20 mins of riding.Sometimes if i play with the cables that go into the AR unit it seems to clear it for a while,Could it be as simple as needing a new spark plug or could the power valve/AR unit be sticking etc?? I'm not very mechanicall...