Gap for BPR5ES Spark Plug

alieid · 02-22-2019, 02:44 PM

Can someone help me figure out what the correct gap should be for my NGK R BPR5ES plugs? Replacing them today but don't know what to gap them to. thanks.

1994 E-Z-GO Golf Cart
Serial Number: 1065800
Product Number EH29CPG10012612
Robin Engine Model EH29C

Rooster59 · 02-23-2019, 04:30 AM

Not the answer you were looking for but if I recall correctly the EH29C engine takes BPR4ES plugs.

I gapped mine at .035" but I won't swear to it.

trig123 · 02-23-2019, 10:28 AM

.028-.030 is what the service manual said.

alieid · 02-23-2019, 04:33 PM

Quote:

Originally Posted by Rooster59

Not the answer you were looking for but if I recall correctly the EH29C engine takes BPR4ES plugs.

I gapped mine at .035" but I won't swear to it.

That’s a hotter plug I believe. I’m just replacing what was already in there since it’s my buddies cart. Cleaned carb, replaced plugs and adjusted governor. It was topping out at 16 but I’m hitting 23 now. Going to back it down a bit since it occasionally sputters/backfires

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alieid · 02-24-2019, 07:02 PM

Quote:

Originally Posted by Rooster59

Not the answer you were looking for but if I recall correctly the EH29C engine takes BPR4ES plugs.

I gapped mine at .035" but I won't swear to it.

That's what the old plugs were set to when I replaced them so I did as well but only temporarily until I figure out what the factory spec is. I'm seeing .28 and .30 so far but again not in a owners manual or factory website. Still hoping someone with an owners manual

big mule · 02-24-2019, 08:49 PM

Quote:

Originally Posted by alieid

That's what the old plugs were set to when I replaced them so I did as well but only temporarily until I figure out what the factory spec is. I'm seeing .28 and .30 so far but again not in a owners manual or factory website.Still hoping someone with an owners manual

See post # 3 above.

alieid · 02-25-2019, 07:59 AM

Quote:

Originally Posted by big mule

See post # 3 above.

Oops, thank you I see it now!

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trig123 · 02-27-2019, 07:39 PM

User manual report :)
I use the NGK BPR4ES instead of the one listed for the 9hp .

Rooster59 · 02-28-2019, 10:17 AM

Thanks. I thought my 295 pre-MCI had always used BPR4ES. Memory is still working.

trig123 · 02-28-2019, 10:37 AM

Yes, I beleive the NGK FR2A-D is the same plug as the NGK BPR4ES but you use a 5/8 socket to remove it instead of the 13/16th. I like you stay with the NGK BPR4ES on the 9 hps.
I sure don't want to go to change a plug and have to hunt up a different socket

02-22-2019, 02:44 PM	#1
alieid Not Yet Wild Join Date: Feb 2019 Posts: 10	Gap for BPR5ES Spark Plug Can someone help me figure out what the correct gap should be for my NGK R BPR5ES plugs? Replacing them today but don't know what to gap them to. thanks. 1994 E-Z-GO Golf Cart Serial Number: 1065800 Product Number EH29CPG10012612 Robin Engine Model EH29C
alieid Not Yet Wild Join Date: Feb 2019 Posts: 10

02-23-2019, 04:30 AM	#2
Rooster59 Gone Wild Join Date: Jul 2017 Location: East Central Missouri Posts: 1,955	Re: Gap for BPR5ES Spark Plug Not the answer you were looking for but if I recall correctly the EH29C engine takes BPR4ES plugs. I gapped mine at .035" but I won't swear to it.

02-23-2019, 10:28 AM	#3
trig123 Vintage tech Join Date: Sep 2009 Location: South Posts: 3,215	Re: Gap for BPR5ES Spark Plug .028-.030 is what the service manual said.

02-28-2019, 10:17 AM	#9
Rooster59 Gone Wild Join Date: Jul 2017 Location: East Central Missouri Posts: 1,955	Re: Gap for BPR5ES Spark Plug Thanks. I thought my 295 pre-MCI had always used BPR4ES. Memory is still working.

02-28-2019, 10:37 AM	#10
trig123 Vintage tech Join Date: Sep 2009 Location: South Posts: 3,215	Re: Gap for BPR5ES Spark Plug Yes, I beleive the NGK FR2A-D is the same plug as the NGK BPR4ES but you use a 5/8 socket to remove it instead of the 13/16th. I like you stay with the NGK BPR4ES on the 9 hps. I sure don't want to go to change a plug and have to hunt up a different socket

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