threenailz

Hey all,
I fouled my plug again today, at least I think that's the problem. The bike started fine, 1 pull, and I was able to ride for 5 or 6 minutes, but after that, I was taking a turn, let off the throttle and the bike died. I checked the gas lines, filters, and thought I may have flooded the engine. I waited for a while for the bike to cool and any excess fuel to evaporate and tried again, but nothing.

I think my mixture may be to lean, or my fuel/oil may be old. Would this cause the plug to look burnt and corroded?
I also could not find a matching plug, it says F7RC on it, and no-one at Lordco or CT has it in their system. Any suggestions of other plugs to run?

Also when I was speeding up the bike would almost hesitate when I reached 9000 rpm or so. Atfer the bike slowed a bit, the engine would kick in again and the same process would occur. Does this have anything to do with the stalling problem?

I am running a C1, on it's 2nd tank, with a 25:1 mix of regular fuel and some high grade 2 stroke oil.

Suggestions?

inthelead83

well you should have gone to 50:1 after your first tank and use synthetic oil but. and those plugs are crappy they always crap out and 1 question what are you driving on pavement gravel?

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threenailz

I was riding on pavement. any suggestions of plugs to run? And, i'll change my mix when i get the new plug installed.

device

i will go to my truck and check hang a min...
i get mine from autoparts store crappy tire never has them..
i would run a nother tank 25:1
course i have bad luck with bikes..

device

ok plug you want is:
NGK BR7ES

threenailz

Thanks,
i'm on my way out now, hopefully crappy tire has one, if not i'll have to wait till tomorrow.

huckster

BR9ES , 7 IS A LITTLE HOT

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Admin

I wrote another article just for you to compare your plugs to other known conditions. http://www.pocketbikeforum.com/artic...revisited.html

That sounds like a reed issue.

BR7ES is the NGK direct replacement for that plug.
W22ESR-U is the DENSO direct replacement for that plug.
WR5CC & WR5CP are the BOSCH direct replacement for that plug. (both are listed, unsure why)
RN3C is the Champion direct replacement for that plug.

Note - this information was gained from manufacturer sites yet those sites quote that the numbers given may not be correct. If you are unsure how to compare plugs please ask for help when purchasing at a reputable and knowledgable dealer.

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frikin_bike!

my bike does that too... keeps cutting out and I even have a black widow reed

device

9 you say?
i smell something not so funny?
smells like burnt O-ring!