Resistor Plugs and Caps

retrobarmy1
Full Member

Posts: 225

Resistor Plugs and Caps Dec 6, 2015 19:10:19 GMT davefirestorm likes this

PM Quote

Post by retrobarmy1 on Dec 6, 2015 19:10:19 GMT

If any of you have been struggling with poor starting and performance, it's worth checking your plug caps. I've had several bikes in the past which have been fitted with resistor plugs and resistor caps of too high a value. The DR8ES (on my 250NA) are resistor plugs. I'm going to check the resistance of my caps tomorrow (if I get a chance) to make sure that the correct ones have been fitted. I had a BSA Royal Star which had been fitted with electronic ignition. It took me ages to find out what was causing the poor running and starting. I eventually connected the leads directly to the plugs (no caps) and the bike started first kick and took off like a rocket (no pun intended!).

Does anyone know what the plug cap resistance should be on the 250 SD?

Happy tinkering,

Mike

New bikes are definitely not for me!

Deleted Deleted Member Posts: 0	Resistor Plugs and Caps Dec 6, 2015 19:47:05 GMT retrobarmy1 likes this PM Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by Deleted on Dec 6, 2015 19:47:05 GMT I believe the below is correct Mike but don't quote me. "The plug caps should ohm out at 5,000 if they are resister caps".

retrobarmy1
Full Member

Posts: 225

Resistor Plugs and Caps Dec 6, 2015 20:38:29 GMT

PM Quote

Post by retrobarmy1 on Dec 6, 2015 20:38:29 GMT

Dec 6, 2015 19:47:05 GMT @82colandra said:

I believe the below is correct Mike but don't quote me.

"The plug caps should ohm out at 5,000 if they are resister caps".

Thanks, I have some new 5k ones to try, so that will be handy. ATT00014

Much appreciated,
Mike

New bikes are definitely not for me!

davefirestorm Platinum Member Posts: 3,889 mini-profile background: {"image":"","color":"1931e6"}	Resistor Plugs and Caps Dec 7, 2015 9:19:59 GMT PM Quote Select Post Deselect Post Link to Post Member Give Gift Back to Top Post by davefirestorm on Dec 7, 2015 9:19:59 GMT Good advice,I had problems with a Velo when I stuck wrong type plug and cap on it.
	"Mum, when I grow up I want to be a biker." "Well dear,... you'll have to make up your mind ......you can't do both."

" You Meet The Nicest People On A Honda "

Post by retrobarmy1 on Dec 6, 2015 19:10:19 GMT

Post by Deleted on Dec 6, 2015 19:47:05 GMT

Post by retrobarmy1 on Dec 6, 2015 20:38:29 GMT

Post by davefirestorm on Dec 7, 2015 9:19:59 GMT