marshg246
VIP MEMBER
This has gotten really confusing. Are you talking about 850 Nortons or 850 cars?Probably weren't until they were modified here in the USA. It's very possible that the 850 I saw was modified by the owner.
This has gotten really confusing. Are you talking about 850 Nortons or 850 cars?Probably weren't until they were modified here in the USA. It's very possible that the 850 I saw was modified by the owner.
I should be arrested. Somebody mentioned a single SU carburetor on a Mini, and I went off the thread topic rails. Austin Mini car.This has gotten really confusing. Are you talking about 850 Nortons or 850 cars?
Alan,
I want to say those resistor plugs will work with the non-resistor caps, but I don't have solid copper core plugs wires, or a Pazon to verify. I have a Boyer, non-resistor caps, stainless solid core wires, and use resistor plugs. Maylar thinks those plugs should work. At least I think that is what he is saying. Give it a go. At least they are the right heat range.
Are you sure about N4G equivalence to NGK 9.....?My bad. I was under the impression that this Champion N4G plug was the same heat range as a 7 series NGK plug. I looked, and it looks like it is closer to a NGK 9, which is too cold. I suggested the 6 because it is only one step warmer than a 7. No big deal, because a 7 is not that hot. However, a 6 is considerably warmer than the Champion 4.
That NGK BPR7EIX should be correct and give you the waffle gold you desire. One would hope anyway. Unless you can't use a resistor plug as mentioned.
It's all I could find on one obscure heat range chart. I got tired of looking. I based it on the 4, 59 in the Champion column of a heat range chart cross referencing with the 9 in the NGK column on that same chart, which could be very wrong. I couldn't find anything on that specific Champion N5G plug. What I looked atAre you sure about N4G equivalence to NGK 9.....?
There was some info about lower Champion "N" numbers earlier.It's all I could find on one obscure heat range chart. I got tired of looking. I based it on the 4, 59 in the Champion column of a heat range chart cross referencing with the 9 in the NGK column on that same chart, which could be very wrong. I couldn't find anything on that.
note clip position these are the carbs i put on uhhhh mebbe i should not have moved clip to 2nd position....will find out tomorrow....mebbe i f**ked up and should have left as they came out of box......ddduuuhhh
...bike ran great no flat spots ,,,,,overall was much smoother than single mikuni and pulled and pulled.
dark plugs was what i was trying to eliminate with 34mm mikuni and now these ones have achieved neither with either pilot is bush type in the new carbs
I would try the plugs first whilst leaving the needles exactly where they are Alan. It’s always good to only do one change at a time. And personally I think your needle is correct where it is now.got some sleep today will put NGK BP7ES plugs in and move clips back to position #1 where they were out of the box and see what happens i just read in another post that the bush type pilots are weak for 850 so that might be a factor now for some coffee