honda305 Home honda305 Auctions honda305 Gallery honda305 Forum


honda305.com Forum

Login
□ Search
□ FAQ 
□ 
Vintage Honda Owners,
Restorers, Riders and
Admirers

Spark plug

Have a part and no Part Number? No idea where it's from and where it goes? Post a description and a photo here!
Newmanraia
honda305.com Member
Posts: 4
Joined: Tue Jan 17, 2017 8:38 pm
Location: New jersey

Spark plug

Post by Newmanraia » Thu Jan 19, 2017 9:33 pm

What is the correct spark plug for a 65 dream

User avatar
Seadog
honda305.com Member
Posts: 1272
Joined: Thu Dec 25, 2014 9:54 am
Location: Cape Cod, MA

Re: Spark plug

Post by Seadog » Fri Jan 20, 2017 8:13 am

Many use the NGK D8HA. Do you have the handbook?
Newmanraia wrote:What is the correct spark plug for a 65 dream

DJM
honda305.com Member
Posts: 553
Joined: Thu Oct 09, 2003 1:54 pm
Location: Chesterfield UK

Post by DJM » Fri Jan 20, 2017 6:08 pm

Handbook says C or D7HW but back then the wide heat range plugs weren't around.

AS previous answer, either a D8HA or D8HS should be fine, certainly good enough to get you up and running and not likely to overheat through being too 'soft' and shouldn't foul if motor is in sound condition and the mixture / timing are both OK.

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Fri Jan 20, 2017 7:09 pm

The early parts list book I have shows D-8H and I know for sure that there are other HONDA manuals which show D-7X.
Go figure. .............lm
DJM wrote:Handbook says C or D7HW but back then the wide heat range plugs weren't around.

AS previous answer, either a D8HA or D8HS should be fine, certainly good enough to get you up and running and not likely to overheat through being too 'soft' and shouldn't foul if motor is in sound condition and the mixture / timing are both OK.

User avatar
Seadog
honda305.com Member
Posts: 1272
Joined: Thu Dec 25, 2014 9:54 am
Location: Cape Cod, MA

Post by Seadog » Sat Jan 21, 2017 8:44 am

I'd never considered that the owner's manuals might have changed over the years. I have no idea when mine was printed, but it recommends D6HW plugs for normal use and D8H for heavily stressed use.
Attachments
Plug.jpg
Plug.jpg (74.44 KiB) Viewed 2162 times

LOUD MOUSE
honda305.com Member
Posts: 7817
Joined: Mon Aug 15, 2005 8:23 am
Location: KERRVILLE, TEXAS

Post by LOUD MOUSE » Sat Jan 21, 2017 8:48 am

Look at the lower part of the rear page and you may find the year.
Could be I have my number off by one!*^*% ....................lm

Seadog wrote:I'd never considered that the owner's manuals might have changed over the years. I have no idea when mine was printed, but it recommends D6HW plugs for normal use and D8H for heavily stressed use.

User avatar
Seadog
honda305.com Member
Posts: 1272
Joined: Thu Dec 25, 2014 9:54 am
Location: Cape Cod, MA

Post by Seadog » Sat Jan 21, 2017 9:26 am

Looks like December 1965.
LOUD MOUSE wrote:Look at the lower part of the rear page and you may find the year.
Could be I have my number off by one!*^*% ....................lm
Attachments
Back.png
Back.png (370.71 KiB) Viewed 2154 times

Post Reply
cron




 

CB-77 | CYP-77 | Road Test | Riding Log | Literature | Zen | Marketplace | VJ Survey | Links | Home