Another SEAFOAM Thread - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
Carbs and Fuel System
From the gas tank to the carbs
All fuel system discussion

LinkBack Thread Tools Display Modes
post #1 of 4 (permalink) Old 06-08-2010, 09:02 PM Thread Starter
Glenn C.
gcextreme's Avatar
Join Date: Apr 2010
Location: Alexandria, Minnesota
Posts: 1,627
iTrader: (16)
Another SEAFOAM Thread

Ok, i have used seafoam in my truck, poured it into the gastank, the crank case, and did a de-carbon by sucking it in thru a vac hose into the engine as the Seafoam website instructs. I have seen great changes, it works wonders.

So my question is, what's the best way to apply it to my vulcan? Is it just adding it to the gas?
How much do you recommend and whats the procedure, pour it in, run it a bit, let it set, then run it more??

Has anyone added it to the crankcase/oil??
Is there any way to suck it into the motor like thru a vac line???

Anyway, any suggestions and ideas, or instructions would be great.


Glenn C
Alexandria, MN
My VN750 Page
VN750 Stator Plates and Products

2001 Kawasaki Vulcan VN750
1986 Kawasaki Vulcan VN750 (being restored)
1986 Kawasaki 454LTD (being restored)
1985 Kawasaki 454LTD (being restored)
gcextreme is offline  
Sponsored Links
post #2 of 4 (permalink) Old 06-08-2010, 09:07 PM
Senior Member
peerless's Avatar
Join Date: Apr 2010
Location: Strawplains, TN
Posts: 192
iTrader: (3)
A lot of us add a few ounces to the crankcase, ride for about 20 minutes, then change the oil.

2004 VN750 "Rosanna"
Acquired March 6, 2010

NGK Iridium Plugs
NGK Caps
Big Crank ETX15L AGM Battery
Battery Tender Jr. w/Pigtail
Rear Spline Lubed
Front Spine/U-Joint Lubed
Metzeler ME 880's
Brake Fluid Flushed, Filled, and Bled
Saddlemen Studded Saddlebags and Tank Bib
Installed 12 Volt Power Outlet
R/R Relocated flightcontrol Style

N/A... I'm Going Ridin'
peerless is offline  
post #3 of 4 (permalink) Old 06-08-2010, 09:49 PM
Senior Member
baldy's Avatar
Join Date: May 2010
Location: St. Albans, Maine
Posts: 796
iTrader: (0)
Add the required dose to the gas and as peerless said add some to the crankcase before you change your oil. Here is another alternative to seafoam. It works better IMO.

01' VN750
Jardine cross over exaust
Kyriakin grips and foot pegs
Modified seat and backrest
Luggage rack
Crash bar with Kyriakin pegs and extensions
Kumho 758 165/80-15 CT rear Dunlop 404 110/90-19 front
Coastered and air/fuel screws at 2.5 turns
Spline lube

93' VN750 getting TLC
Decals and mirrors
Coastered and air/fuel screws at 2.5 turns
Degoated with Harley mufflers
Duro 110-90-19 front 150-90-15 rear
Pick-up coils at .020
Spline lube
baldy is offline  
post #4 of 4 (permalink) Old 06-09-2010, 10:00 AM
Members who have donated towards server costs
fergy's Avatar
Join Date: Mar 2006
Location: Kyle, Texas
Posts: 4,054
iTrader: (3)
Lots of folks here us it in several different doses. Some go with a half can in a full tank once a month, some of us use about 3 oz in a full tank once a month, and depending on if you just bought the bike or have been having carb issues, we might have you dump half a can in the gas and run it for a few minutes, then let it sit overnight to see if it can dissolve the varnish in the carbs etc. Sometimes we suggest you drain the carbs and inject straight seafoam right into the fuel hoses coming off the petcock to fill the carbs and let them sit overnight or a couple days. On a good running bike, I like to do the 3 oz every month to keep things clean, then in the winter if I'm riding less often, I make sure the tank is full and keep 3 oz or so in the full tank always to stabilize the fuel and keep condensation down.

In the oil, I only add maybe 1/3rd can, warm the bike by riding 10 minutes, then drain and change the oil and filter. I wouldn't keep it in the oil like we do the gasoline.

If you live where the winters are cold, you might want to look into the K100 MG stuff. It sounds like its very effective, maybe more so than seafoam, but I've had such good success with seafoam, and I live in Texas, I really am happy with it.

Kyle, TX member #707 VROC#19556
2002 VN1500 Classic
Spline Lube Procedure, with photos, R/R Relocation and Coil Mod
Rusty Tank Cleaning!
Electrical Fault Finding Flowchart

fergy is offline  
Sponsored Links


Quick Reply

Register Now

In order to be able to post messages on the Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

Once registered, your User Name"cannot be changed". We can make exceptions within 7 days, but after that, it is set in stone.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

For the best viewing experience please update your browser to Google Chrome