Plug Champion L86C???

[raimond]

Hello!

I have bought the plag Champion L86C (the Champion L87Y is equivalent to the NGK BP6HS).Do someone knows it?? I feel that my motorbike runs a little bit slowlier...why?

Before I had the original Z4C. Which model of plug is equivalent to the Z4C?

Thanks!!

 

[Al.Fisherman]

To start with....Because Champions are C.R.A.P

http://www.motoredbikes.com/showthread.php?t=27290

 

[HseLoMein]

If im not mistaken, those are mini plugs. If they are, you are losing power because they are smaller and sit higher up in the sparkplug hole, which lowers compression.

 

[Esteban]

Dig hole,,,, put Champion plug in hole,,,, fill with dirt. Go get NGK,, or any other brand.

 

[raimond]

Also when I go open throttle the engine doesnt work continuously...in short times stop working....why???

 

[Al.Fisherman]

Also when I go open throttle the engine doesnt work continuously...in short times stop working....why???

You haven't mentioned changing the plug as of yet. If you haven't you need to start there...can't help until you change the plug and a new good wire would be good.

 

[raimond]

You haven't mentioned changing the plug as of yet. If you haven't you need to start there...can't help until you change the plug and a new good wire would be good.

I mean after I changed the plug.

Before, with the Z4C it was working very good...until the plug died.

Now,with the Champion L86C i feel less power and doesnt work good in open throttle

Which is the NGK most similar to the originall Z4C??

Thanks a lot for the help!!

 

[Al.Fisherman]

I mean after I changed the plug.

Before, with the Z4C it was working very good...until the plug died.

Now,with the Champion L86C i feel less power and doesnt work good in open throttle

Which is the NGK most similar to the originall Z4C??

Thanks a lot for the help!!

http://www.sinosparkplugs.com/Replacementchart.htm
A Z4C plug is a 11mm...7/16" plug..Where did you come up with the L86C (L87YC) for a Z4C replacement? A L86C (L87YC) BP4HS/BP5HS/BP6HS/BP7HS is a 12.7mm...1/2"
If your engine in fact used a Z4C plug which is 11mm in length and you installed a L86C plug which is 12.7mm in length, you might of closed the gap on the plug.....ya think? 1.7mm (12.7mm-11mm)= 0.0669". If you gaped the plug at .024", it might of closed to .017"
11mm 7/16"
H5 H7T Z4C Z8C M5 M7

BOSCH....WS8E WS5E

Nippon Denso (ND)...W14L-U W16L-U W20M-U W22M-U

Champion...H10 H8 CJ11 CJ8 CJ6 CJ4

NGK...B4L BP6L BM6A BM7A

 

[asfazrq]

I put an NGK iridium spark plug model #: BPR6HIX. it fit on an 80cc engine and boy the motor just runs great. no bogging, increased torque (little bit). $10 well spent