Topic: another vote for seafoam

[Ratfink]

OK already! I went and got some! I put about a third of it in my 750 and the rest in my Toyota 4runner. I noticed a difference in the truck right away but the bike Im not sure. I may not have put enough in the 750 to really clean. Or maybe it didnt need it....

[Tim.]

I'm going to dump some into my Honda Civic.  120,000 miles and it burns through all the engine oil between changes.  Nothing coming out the exhaust though, and no oil on the garage floor.  I think it's evaporating 

[theunrulychef]

Just another warning about MEK other than the whole "It'll kill you" bit.  It will also melt many fiberglass resins.

So this Seafoam stuff, it's made of real gold & angel tears? 

[Hop on a Honda]

I must buy some SEAFOAM for my other SOHC4 and see if it will transform it into a Str8-8
Even the VOLVO flying phone Box will appreciate that.
Dave

[gold01ca]

WOO HOO!

SEAFOAM is available in Canada @ NAPA Auto parts!! $13 canuck bucks/can.
Got me some and will give this "magic brew" a try in my 750 K4.
This is one helluva great forum for a newbie such as I, many thanks!

[medic09]

How much of the stuff do you all use per application?

The can says it's (one pint) good for 8-25 gallons of gasoline treatment.

I figured on 'high-dosing' at one pint/8 gallons.  On our standard CB750K tanks, that's about a little less than 2/3 of the can, eh?

What's your experience?  Does it differ with bike's condition (mine's really acting up)?

[jaknight]

     Hi There medic,

     In the fine print on the SeaFoam can, you should see a blurb that says something to the effect of 1 ounce per gallon of gasoline.  For my '74 cb750 K4, that means about 4 ounces of SeaFoam.

     Usually, I fill my gas tank and then pour in about 1/4 of the can of SeaFoam.  A 16 ounce can equals 4 servings of gas treatment for me.

     IF you do want to add more, it won't hurt it.  I have read threads about guys who added a lot and lived through it fine.  I just go for the regular treatment of 1/4 can with each full tank of gas........ I am sure it will be no problem to give the bike an initial dose of, say, 1/2 can if you want to........

     ~ ~ ~ jaknight ~ ~ ~

[csendker]

I've typically dumped 1/2 can in a full tank of gas.  Once, I was pissed at something or other and threw a whole can in one tank and lived to tell about it.  Bike ran crappy for that one tank, but better after. 

[aptech77]

The Seafoam Deep Creep product also is DA BOMB!!

[AR-Guy]

Well I sold on the stuff. 
What is the recommendation for using in the crankcase? 
Sea Foam says 1 1/2 oz's per Qt. is that what you Sea Foamers use? 
How long ya leave in it before changing oil? 10 min ½ hour??

Going to try it in the morning.

Buck

[Honda CBer]

personally, i wouldnt put seafoam or anything else in the crankcase of an engine this old, unless i KNEW that there was gunk in there that needed to come out... if you pulled the oil pan, what would you find in there?

for the tank, i usually put 1/3 to 1/2 bottle in a fresh tank of gas, perhaps every tenth tank or so...

[Bob Wessner]

personally, i wouldnt put seafoam or anything else in the crankcase of an engine this old, unless i KNEW that there was gunk in there that needed to come out... if you pulled the oil pan, what would you find in there?

for the tank, i usually put 1/3 to 1/2 bottle in a fresh tank of gas, perhaps every tenth tank or so...

I would be reluctant as well. Does anyone know the affects of Seafoam on a wet clutch system?

[tazzmann]

I use Seafoam in my crankcase on all my bikes. I use about 1oz. So far it has done wonders keeping the internals of the engine clean. I have had no bad experiences with the wet clutch, so I would have to say it works well for me. When I first got my 1979 KZ650 and changed the oil. It was black and sludgy. I added Seafoam to the crank case and ran it around for about 300 miles. Changed the oil again and it looked black, added more Seafoam and ran it another 300 miles or so. At the last oil change, the oil was almost the original color I put in. I took the valve covers off and there was not but a few specks of "dirt" or sludgy stuff left in the valves.

I would say it is very good, though if you DO have leaks afterwards, you needed to do maintenance on your bikes anyway!

P.S. I now have a case of the stuff in my garage!

[DrMark]

I've added 2 ozs to crankcase 1 week before I planned an oil change. No problems with clutch noted. Does a nice job. Just like Tazz said, first couple of oil changes....kinda dark. Last 2 were more what I hoped for.

[GroovieGhoulie]

I would be reluctant as well. Does anyone know the affects of Seafoam on a wet clutch system?

I don't know about seafoam, but I used a quart of "Marvel Mystery Oil" in the crankcase of my bike for one oil change.  Cleaned some crap out when I drained it (which was the point), but it thinned the oil and the clutched slipped during rapid, high-RPM gearchanges.  Normal driving was fine.  Next oilchange I switched over to 20w50 (hot summer here) and the clutch went back to locking up tight, no slipping.  I'm going to switch back to 10w40 as it cools off.

Not quite what you asked, but I imagine the effects would be similar.

[Honda CBer]

I would be reluctant as well. Does anyone know the affects of Seafoam on a wet clutch system?

I don't know about seafoam, but I used a quart of "Marvel Mystery Oil" in the crankcase of my bike for one oil change.  Cleaned some crap out when I drained it (which was the point), but it thinned the oil and the clutched slipped during rapid, high-RPM gearchanges.  Normal driving was fine.  Next oilchange I switched over to 20w50 (hot summer here) and the clutch went back to locking up tight, no slipping.  I'm going to switch back to 10w40 as it cools off.

Not quite what you asked, but I imagine the effects would be similar.

marvel mystery oil is about 25% stoddard solvent (WD40) and 75% distillates... smells and looks and burns like heating oil... thins out oil like water thins gravy...

[mrbreeze]

Yeah,I forgot all about this post.I was going to report back from last year if it made any difference.Well,now I don't remember if it did or not but my bike has been runnin' sweet this whole season. I did use 1/3 can to tank of gas but not right in a row.It didkeep rust away.I will definitely do it again for the winter storage.

[Tim.]

For all the Canadians on the board, I picked up two cans of Seafoam at Carquest today in Toronto and they were on sale for $8 a can down from $13.  Seems like a decent deal.

One can for the Honda Civic, one for the 550, or maybe the 750 - the 550 is going to be freshly rebuilt so I won't insult it just yet.

[nickjtc]

One can for the Honda Civic, one for the 550, or maybe the 750 - the 550 is going to be freshly rebuilt so I won't insult it just yet.

It's a Honda; no insult will be taken!!

[seabird]

OK all you over-served characters over "The Pond" - any of you have any idea if/where it can be obtained in the UK?

TIA,

Seabird
'75 CB400/4

[csendker]

http://www.seafoamsales.com/buy.htm

All the stores seem to be in the USofA, but you can e-mail them to see if they send anything your way.

[seabird]

Thanks for the response - my address sent this afternoon - here's hoping!

Terry

[Tim.]

I dumped a whole can into a full tank (35 litres) in my Civic, and within 20KM noticed a difference.  Much stronger pull, no hesitation off the line - guessing it's cleaned the injectors etc.  Nice stuff.  Will have to see whether the effects last beyond the 1/2 tank I've burned so far.  Will run the tank to low before filling up so I don't dilute the mix.

For $8 a can, I'd be tempted to use it often, but would be concerned about detrimental impact - there doesn't seem to be any warning against excessive use on the can.

[skiri251]

CB750K5
I have just rebuilt the carbs and treated the tank with Por15.
Does Seaform damage Por15?

The bike is not in perfect condition (hesitates at idle etc.) It's got 45k miles on it and I don't know the history. I guess I should put Seaform into the crank case also..

[Tim.]

CB750K5
I have just rebuilt the carbs and treated the tank with Por15.
Does Seaform damage Por15?

The bike is not in perfect condition (hesitates at idle etc.) It's got 45k miles on it and I don't know the history. I guess I should put Seaform into the crank case also..

NO - you should figure out what's wrong with the bike - have you done the tappets?  Timing?  Cleaned the carbs?  Changed the oil?  How long have you had the bike?

Aside from that, I can't imagine Seafoam harming the POR-15.