what plugs can I use?

evilone · Post by **evilone** » Sun Jul 13, 2008 5:48 pm

This is the plug store gave me, they supposedly cross referenced it to the NGK. What plugs can I use? This is a Champion L87YC. 1987 elite se50

gashead · Post by **gashead** » Sun Jul 13, 2008 6:14 pm

This in tech. doc.
plug matches chart.
http://hondaspree.net/phpBB2/viewtopic.php?t=3800

evilone · Post by **evilone** » Sun Jul 13, 2008 6:41 pm

Thanks, I used search option and got way too many returns. That's the list I was looking for, checked tech docs but overlooked that one!

burnt_toast · Post by **burnt_toast** » Sun Jul 13, 2008 7:02 pm

Use proper NGK, champions not so great..

Virtually any local motorcycle shop will stock NGK

evilone · Post by **evilone** » Sun Jul 13, 2008 8:20 pm

So what do you think of the electrode? It's wasted, does that look like a lean condition?

burnt_toast · Post by **burnt_toast** » Sun Jul 13, 2008 9:27 pm

evilone wrote:So what do you think of the electrode? It's wasted, does that look like a lean condition?

hard to tell from that angle but doesn't look too good. light gray can be lean but again hard to tell.

honestly try a proper NGK and do some plug chops that will tell u.

evilone · Post by **evilone** » Mon Jul 14, 2008 7:17 pm

I ordered a couple NGK's. Will do some chops.

GN Racer · Post by **GN Racer** » Mon Jul 14, 2008 7:22 pm

If you run the bike hard and have modifications done to it, you might want to go with a colder plug. BPR7HS/BP7HS/B7HS.

Cubey · Post by **Cubey** » Mon Jul 14, 2008 8:31 pm

burnt_toast wrote:Virtually any local motorcycle shop will stock NGK

I got one from in-stock at a run of the mill O'Reilly auto parts store

evilone · Post by **evilone** » Mon Jul 14, 2008 8:46 pm

GN Racer, I ordered a couple GNK BPR8HS plugs. I have a 1987 elite se50p with unrestricted exhaust, ported exhaust port on cylinder, ported and polished intake, shaved 1985 spree head, and aftermarket variator with 3 gram weights. I can go about 3 1/2 to 4 miles before it acts like it's overheating. Hopefully the plugs help. I did notice the white insulator was blistered and electrode part way melted.

evilone · Post by **evilone** » Mon Jul 14, 2008 8:48 pm

By the way the 3 1/2 to 4 miles is full throttle at 44-45 mph.

GN Racer · Post by **GN Racer** » Mon Jul 14, 2008 9:06 pm

Give the 8 a try. The worst that can happen is that you'll foul the plug. No big deal.

I think however, that you will be fine with one of the 7's that I mentioned.

3 gram weights? I bet the bike likes to rev.... Have you tried a little heavier on the weights?

evilone · Post by **evilone** » Tue Jul 15, 2008 5:13 am

I plan on heavier rollers soon but am using the 3's since they came with variator. Thinking 7's or 9's?

evilone · Post by **evilone** » Tue Jul 15, 2008 9:01 pm

Replaced plug today with the NGK 8. rough at take off but better than champion plug. Did plug chop...LEAN. Up-jetted from 85 jet to 90 jet...purrs like a kitten. Didn't have time to do plug chop, will do tomorrow and report. Oh yeah, I was hitting 47 mph flat and about 50 mph down light incline and gaining speed going uphill

evilone · Post by **evilone** » Tue Jul 15, 2008 9:03 pm

GN Racer, can I get your opinion on what weight rollers I should try? What about 7's?