Author Topic: Spark Plug Change  (Read 3151 times)

Vision

  • Sr. Member
  • ****
  • Posts: 364
    • View Profile
Spark Plug Change
« on: August 31, 2014, 01:44:22 PM »
Anybody know of a video/blog post on changing these?

What brand is best?

tortoise

  • Hero Member
  • *****
  • Posts: 558
    • View Profile
Re: Spark Plug Change
« Reply #1 on: August 31, 2014, 03:59:28 PM »
Also consider performing a compression test . . requires 10mm adapter.




Jim Moore

  • Jr. Member
  • **
  • Posts: 89
    • View Profile
Re: Spark Plug Change
« Reply #2 on: September 01, 2014, 12:25:58 PM »
Speaking of plugs, my bike came with a spare plug, an NGK CR7HSA. The book calls for a Champion P-RZ9 HC. Are those compatible?

Thanks,

Jim Moore

  • Jr. Member
  • **
  • Posts: 89
    • View Profile
Re: Spark Plug Change
« Reply #3 on: September 01, 2014, 12:36:09 PM »
Speaking of plugs, my bike came with a spare plug, an NGK CR7HSA. The book calls for a Champion P-RZ9 HC. Are those compatible?

Thanks,

The internets says "YES!." Anyone got any practical experience?

Stig / Major Tom

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 14690
  • Rural Ohio
    • View Profile
Re: Spark Plug Change
« Reply #4 on: September 01, 2014, 02:00:26 PM »
The internets says "YES!." Anyone got any practical experience?
I'd put the NGK back in ...or go to the Iridium NGK ($3 vs $7 for the Iridium)
Most autoparts stores can get you that NGK overnight.
This is the same plug my scoot uses.
Stig
Boston Strong
Rural Ohio

And, I'm feeling a little peculiar.

BettinANDlosing

  • Hero Member
  • *****
  • Posts: 2235
  • Carter Merz
    • View Profile
    • Columbia Scooters
Re: Spark Plug Change
« Reply #5 on: September 01, 2014, 04:23:12 PM »
Speaking of plugs, my bike came with a spare plug, an NGK CR7HSA. The book calls for a Champion P-RZ9 HC. Are those compatible?

Thanks,
NGK all day!!!!! Make sure you start the plug by hand, it's very easy to cross thread the aluminum and of you do its a sh** ton of work to get the head off and helicoil it.
2002 Kymco B&W 300; MRP 78MM "300CC", Naraku cam, Yoshimura rS3 exhaust, 17g Sliders, Yellow torque spring drilled airbox, stock carb #115 main #40 pj.

2001 "Yamaha" Zuma AKA MBK Booster; MHR OverRange, Dellorto 19mm BHBG, Polini "big" intake, RS-3 Rear shock, Stock cylinder.

Vision

  • Sr. Member
  • ****
  • Posts: 364
    • View Profile
Re: Spark Plug Change
« Reply #6 on: September 01, 2014, 08:51:56 PM »
I'd put the NGK back in ...or go to the Iridium NGK ($3 vs $7 for the Iridium)
Most autoparts stores can get you that NGK overnight.
This is the same plug my scoot uses.
Stig


What Iridium NGK is comparable to the CR7HSA? I don't see it.

BettinANDlosing

  • Hero Member
  • *****
  • Posts: 2235
  • Carter Merz
    • View Profile
    • Columbia Scooters
Re: Spark Plug Change
« Reply #7 on: September 01, 2014, 10:54:57 PM »

What Iridium NGK is comparable to the CR7HSA? I don't see it.
CR7HIX is the right iridium, they last FOREVER!!!!
2002 Kymco B&W 300; MRP 78MM "300CC", Naraku cam, Yoshimura rS3 exhaust, 17g Sliders, Yellow torque spring drilled airbox, stock carb #115 main #40 pj.

2001 "Yamaha" Zuma AKA MBK Booster; MHR OverRange, Dellorto 19mm BHBG, Polini "big" intake, RS-3 Rear shock, Stock cylinder.

Stig / Major Tom

  • Global Moderator
  • Hero Member
  • *****
  • Posts: 14690
  • Rural Ohio
    • View Profile
Re: Spark Plug Change
« Reply #8 on: September 02, 2014, 10:30:26 AM »
CR7HIX is the right iridium, they last FOREVER!!!!
Yep, that's the one I'm running in my Like200i.
Will likely boost your idle by a few RPMs.....gave me a slightly more reassuring idle while waiting at lights.
Stig
Boston Strong
Rural Ohio

And, I'm feeling a little peculiar.

Vision

  • Sr. Member
  • ****
  • Posts: 364
    • View Profile
Re: Spark Plug Change
« Reply #9 on: September 29, 2014, 01:28:00 AM »
So this weekend after an oil change I replaced the regular NGK with 3k on it with an Iridium.

I'm impressed. I don't know if the improvement came from a fresh plug, the Iridium, or both, but the bike has a little more power. There is more pep on the low end and with the throttle wide open. I'll get a surge of power on long hills where there wasn't any before the change.

Great stuff. Thanks guys. I'm surprised.

bluescoot125

  • Jr. Member
  • **
  • Posts: 50
    • View Profile
Re: Spark Plug Change
« Reply #10 on: October 30, 2014, 07:37:04 PM »
CR7HIX is the right iridium, they last FOREVER!!!!
im going to get this plug for my agility 125 last time I went to advanced auto I asked if they could find iridium to replace the  CR7HSA and he did know how or something. This is the same plug in an iridium though?

An Error Has Occurred!

Call to undefined function split()