Spark Plug's - which to choose for 85-86 250R

[ceaserthethird]

Ok went out to buy some spark plug's this pass weekend and -

Honda Sale's men told me - we have a

Brand - NGK

1. a $2.50 plug - (BR8ES or BR9ES)

2. a $5.50 plug Recommends - (B8EG

3. a $8.50 plug - (don't have model number

what the difference and is it worth the money :confused:

What Sprak plugs are you running ?

Whats the Best Sprak Plug out their ? :wondering

[JackFlack]

Stock is NGK BR8ES

and

NGK Iridium IX Spark Plugs BR9EIX

[Yamahondaman]

Jet it with the BR8 or 9ES....PENDING on Jetting on what plug to use ...the 8 is HOTTER !!! do not EVER use a "7" !!!! TOO HOT !!!
after jetting ....... Then use the "BR8EG or the BR9EG" !!!
Discount Auto .................................................. ........................ TWO BUCS !!

[jason 32]

ngk b8es series
or the b8ev
i have found the 8es to be better than all the other plugs i have used
nippondenso to-irridium
jet it right -golden brown is what you want the plug too look like
not black-oil
white -too lean
wet -too much fuel

[Lomax]

I run a B8ES in mine, havent had any trouble yet.

[ceaserthethird]

NGK - Iridium plugs , Any comment's ?

[3Razors]

Stick with NGK or ND (Nippendenso) sp?

[250rAL]

NGK - Iridium plugs , Any comment's ?

I wouldn't pay the extra $; it's not necessary.

[Billy Golightly]

I run B8ES in everything I own too. Hard to find the R resistor types around here.

[hrc85250r]

the "BR8EG" plugs are nice, if it runs real hot for some reason while youre riding or you run alcohol and accidentally jet it lean it is cheap insurance....they have a very fine center electrode and it will melt and your motor will barely run if it gets too hot, cheaper to replace a 5$ plug than a 150$ topend....

[ride_red_95]

i always run BR8ES in my 250r and they seem to work really well

[JackFlack]

Anyone run BR9ES ?

Thats what the owners and service manual says to run.

[crackshot]

Anyone run BR9ES ?

Thats what the owners and service manual says to run.


I am because it has been unusually hot here.

[ceaserthethird]

Any one tryed the - Iridium Spark plug's ?

[crackshot]

Yep. They seem to give more power, response and crispness.

[Yamahondaman]

Anyone run BR9ES ?

Thats what the owners and service manual says to run.

they say to try and jet it to a cold plug like the BR9ES...Much BETTER !!!
the reason "Honda" Say's to do that is because the "R" work's REAL GOOD with there Stator and Brain Box Eletrical System.... i run the "R" Plug in ALL of the Rag's i build ....GREAT Plug's ....Can't Beat Em !!

[Fox250R]

i run the 9 on hot days i guess its like jetting 3 sizes up.....

[hrc85250r]

the difference between "R" plugs and non"R" plugs is the resistor in the ceramic between the electrode and the plug boot connection to the plug. if you dont run a "R" you are screwing up the whole brain and everything. it will ru on them, but nowhere near the performance.

[Russell 350X]

i am runnung a BR9ES now and it sputters at the top RPM's, so should I go to the BR8ES? Thats what was in it but it fouled out. What is the stock jetting for a 85 R also, may need to make a smaller jet.