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Latest discussions at Pit Bike Club:
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05-05-2013, 05:52 PM
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#1
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On Stabilizers
Join Date: Apr 2013
Posts: 65
Bike: yz85 07
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Difference between c7hsa and cr7hsa spark plugs?
Just wondering what the difference because I have been buying the c7hsa spark plugs and most people say to buy the cr7hsa plugs. Can someone tell me the difference if there is any?
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05-05-2013, 05:57 PM
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#2
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Senior
Join Date: Apr 2011
Location: ballymoney
Age: 36
Posts: 830
Bike: 140gp/zpf140
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Re: Difference between c7hsa and cr7hsa spark plugs?
Heat range on cr7hsa is more and would last longer ...
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05-05-2013, 06:18 PM
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#3
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On Stabilizers
Join Date: Apr 2013
Posts: 65
Bike: yz85 07
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Re: Difference between c7hsa and cr7hsa spark plugs?
Quote:
Originally Posted by mattiepatty
Heat range on cr7hsa is more and would last longer ...
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Awesome I will buy those in future buy a 10 pack for Ł18
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05-05-2013, 11:33 PM
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#4
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Super King
Join Date: Jan 2006
Location: barnsley
Age: 36
Posts: 1,696
Bike: kx250f
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Re: Difference between c7hsa and cr7hsa spark plugs?
wrong cr7 vs c7 both same heat 
r stands for Resistor 
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05-05-2013, 11:45 PM
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#5
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Senior
Join Date: Aug 2007
Location: south yorkshire
Age: 34
Posts: 609
Bike: yx140 yx177
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Re: Difference between c7hsa and cr7hsa spark plugs?
the letter R? lol
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06-05-2013, 12:02 AM
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#6
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Super King
Join Date: Jan 2006
Location: barnsley
Age: 36
Posts: 1,696
Bike: kx250f
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Re: Difference between c7hsa and cr7hsa spark plugs?
Quote:
Originally Posted by padge
the letter R? lol
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yes well done lol............. stops radios messing up etc etc wouldnt worry about the R
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06-05-2013, 10:52 AM
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#7
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Novice
Join Date: May 2013
Age: 33
Posts: 1
Bike: stomp 125
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Re: Difference between c7hsa and cr7hsa spark plugs?
Quote:
Originally Posted by mattiepatty
Heat range on cr7hsa is more and would last longer ...
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the number is the heat range. The r stands for resistor
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06-05-2013, 11:25 AM
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#8
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On Stabilizers
Join Date: Apr 2013
Posts: 65
Bike: yz85 07
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Re: Difference between c7hsa and cr7hsa spark plugs?
Quote:
Originally Posted by SteamBoatWilly
the number is the heat range. The r stands for resistor
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Does the resistor have any difference in them
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07-05-2013, 10:23 AM
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#9
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Wheelie King
Join Date: Dec 2007
Location: worcestershire
Age: 51
Posts: 2,280
Bike: various
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Re: Difference between c7hsa and cr7hsa spark plugs?
Quote:
Originally Posted by kamy
Does the resistor have any difference in them
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The resistor just cancels out radio interference with anything electronic like ignition systems but on a pit I've never noticed a difference myself to running a non-resistor plug.
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07-05-2013, 01:12 PM
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#10
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On Stabilizers
Join Date: Apr 2013
Posts: 65
Bike: yz85 07
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Re: Difference between c7hsa and cr7hsa spark plugs?
Quote:
Originally Posted by mart35
The resistor just cancels out radio interference with anything electronic like ignition systems but on a pit I've never noticed a difference myself to running a non-resistor plug.
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Thanks in guess I will just go for the cr7hsa plug in future even although there is not much difference and there is no difference in price swell.
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