They are Sirio. Or at least they were recently.

I ran @ the Great Lakes Challenge in Ohio very fast great runtime typical picco carb I ran a stock version very smooth powerband but I like the powerband of Sirio based IMO overall the CRF is a very good motor

Daniele told me that they are Sirio plugs. He said they are the best plugs.

I got a hunch that the pricing plays a very big role in that decision as well.
When you check Italian shops, Sirio plugs are by far the least expensive, while Picco plugs are way up there.

Also, the plugs are really good. The only other affordable plug that fits, is the GRP plug which is also very good and not that expensive.

We don't have O'Donnel plugs ( which IMHO is the best plug on the market) here in Europe, but I think they don't fit Picco engines very well anyways.

so can we use GRP,sirio,IDM, and picco plugs on any picco based engine?

That's what I do

Well you learn something new every day I guess. Strange when most people on this side of the pond consider the GRP/Ninja plugs to be the best.

My experiences with The O'D. plugs dates back to my last racing season 2004/2005 in the states.
Nova had horrible plugs at the time and the O'Donnell plugs worked great, both in off road and on road.

Maybe the grass is just greener on the other side

But I do agree that the GRP plugs are excellent at the moment.

OD plugs do not work nearly as well as Picco plugs do in the Offroad Picco's...neither do the IDM plugs.....I have teied both only to go back to the Picco plugs...the OD plugs seem to lack the trigger snap of the Picco plugs and the IDM plugs are not as durable.... I run Picco plugs in my CRF with amazing results...... to me its a no brainer, Picco plugs for Picco motors....They are extremely durable and give the motor awesome performance.....GRP plugs do not work nearly as well either inthe Picco's...tho I only run GRP's plugs in my GRP's..... IMO too many people try to reinvent the wheel and mismatch plugs to engines, which to me is akin to trying to fit a circle into a square...When you use the proper plugs for each brand you can usually be assure of top notch performance and fit...In the case of the Picco mills nothing runs as nicely as Picco original plugs......... And yes the CRF engines use the identical button as the regular Picco engines, hence using a Picco plug is your absolute best option !

Oh, ok!

your welcome !!

this maybe off topic but i have a Team Orion X312T Kyosho CRF (that limited edition thing that they brought out for the release of the kyosho RRR WC) and im having trouble finding a plug. i have used the O' Donnel 77t, and the Siro #6 Turbo plugs. when i take the colling head off to reviel the Button there is tiny amounts of what looks to be oil. (all these plugs are based on the OS Turbo plugs, i am yet to try a OS P7 so maybe the little changes in the plugs by the manifactures are causing this.

Any help would be appreciated

Thanks
Mitchell

Try nbhc.com.au or bartzrcpartz

They should both be able to help you out

I'm used O'Donnel glow plug & race very fast engine !
but Final race end unknow engine only 72 deg C ??

Hey guys i will be get back into running the CRF engine,i ran the 1st version awhile back when i ran the s720 ,this is Bobby Watson i picked up 2 of the 1st version will be running them for the 1st time in a Kyosho this weekend .If things go well i will be running the Crf at 09 winternats.

Bobby, Good Luck! you will need it.
or I can hook you up with JP P3L Firstline engines