Black Plugs / Running fine / what todo

thank you all

From what I understand is the wire and caps not resistor type.
www.z1enterprises.com/dyna-ignition-wire...sion-core-black.html

What spark model type should I order who is not resistor type?

 If I install the new plugs and 17.5 pilot jet and lower the needle and drive a hour drive with different throitle opening. If the spark plug show good condition, is then case close?

Or must I run the engine 1/4 kill engine and then clean plug run 1/2 kill the engine, check condition and then do the same for 3/4?

NGK B8ES are the non resistor plugs.

Khi changed the reccomended plugs from b8 to b7 for 650 motors around 78. Ie just after all the manuals were printed. B7 is hotter than b8. B7's for general use. B8's for constant high speed / revs. B9's for race use.
Whatever heat range you go for use the denso equivalent, far supeiror plugs.

I have now sent email update order to NGK B8ES.

will come back with a update when I have tested with new needle posistion 17.5 pilot jet and new plugs.

It will maybe take 1-2 weeks.

thank you all for the support.

Hello gordone
It will maybe take 1-2 weeks? For what, to got all the parts?
Or are you in vacation?

10x NGK Zündkerze B8ES

www.amazon.de/NGK-10x-Z%C3%BCndkerze-B8E...words=ngk+b8es&psc=1


17.5 pilot jet

www.motorradbay.de/keysterjetformikunica...6e1769fe4384b9c23a36



I have 4 x 17,5 pilots left if you want.

Hehe

thank you, but I have the pilot jets. The pmugs take 3-4 days.

Bussy at work with overtime, so need to take it when I got time

While waithing for the plugs I have a question plug with resistor vs not resistor.

is the idea my plug will run hoiter with not resistor?

I understand the spark is wider/larger with a resistor type.

summary why not resistor at all?

I don't run them at all.
Steve

I don't run res plugs or caps either but would love to hear a argument if this is a hotter set up over one with resisters. A search on the subject just gave me a head ache so I'm only "guessing" that it would ......

SWest wrote: I don't run them at all.
Steve

sorry for not be clear, my question was, what is the benefit of not using resistor at all, either in the plug or caps?

Resistors were only put in to stop interference with analogue tv's and radio's around back in the 70's. I don't run resistor plugs or caps on any of my bikes. In todays digital world there is no benefit either way to the bike other than something less to go wrong.

Finaly some work done!
Today have I installed four new spark plugs B8ES lower the needle from 5`th to 4`th position and installed the 17.5 pilot jets.
I adjusted all air mix screw to 1 turn out plus 1/4.

I also synced the carbs.

I recorded a video when I was finish, the idle needle on the RPM display, has not been so stably before on 1... never seen since I have had the bike...
streamable.com/na5kj

I started up the bike, it started easier then before and the idle was more smooth... I let it run for around 5-10 minutes to it was hot...
Then I took out the spark plugs, please see picture below:

Cylinder 1:


Cylinder 2:


Cylinder 3:


Cylinder 4:


I don`t know if the engine was run long enoufh, bu the plugs looks good for now?
My plan is to drive the bike around in different roads city and high speed and then take them out and see how they looks like?
If the engine is running fine and the plugs looks fine I don`t need to do more ? If the plugs are not perfect, then I need to figue out what
area the problem is ? pilot ? needle? main jet.. but not before ?