Question about Seafoam - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 8 (permalink) Old 11-10-2009, 05:45 PM Thread Starter
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Question about Seafoam

I got my bike running nicely and have been riding it daily since Wednesday. no issues at all with the bike. I put almost 200 miles on her in that time. Last night I added 3 oz. (the recommended amount for 3 gallons) of Seafoam to my tank. This is the first time I've used the stuff and thought I would give it a try since everyone on here uses it religiously. On the way to work today bike was running fine, until the half way mark (about 13 miles). Then at low speeds and stops the RPM was dropping down to 500 RPM. Currently I have the idle at 1100. I made it to work fine but had to rev up the engine and keep it around 3000 RPM the rest of the way to work. At lunch, I took the bike home. I hit the highway and hit some high RPMs and rolled on the throttle until it was time to exit. Then the bike was running fine again.

Question is: Does this sound like the Seafoam just loosened some junk in the fuel and rolling on the throttle freed it or blew it out? I road around at lunchtime at low speeds on the way back to work and the bike was running flawless again.


VROC Number: 31246
2003 Kawasaki VN750 SOLD
2006 Honda VTX1800C
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post #2 of 8 (permalink) Old 11-10-2009, 05:53 PM
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That sounds like what happend. I wouldn't get too excited about it. It sounds like the seafoam is working. I'd suggest runnin it in the next tankfull, then every third or fourth one after that. Hope it doesn't act up on ya again.

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VN900 seat on my VN700
https://www.vn750.com/forum/showthread.php?t=12903

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post #3 of 8 (permalink) Old 11-10-2009, 05:59 PM Thread Starter
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Thanks! Would the Seafoam have any effect on the MPG of the bike? I've been getting 120 miles (without reserve) per tank of gas. The bike dies at 120 miles as I found out the other day when I was pulling into the gas station hehe. Does 120 miles per tank sound about right? I about 6'4" tall and 350 pounds so I know i'm putting some strain on that 750 hehe.


VROC Number: 31246
2003 Kawasaki VN750 SOLD
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post #4 of 8 (permalink) Old 11-10-2009, 06:36 PM
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Mine gets around 42mpg out on the hwy (cruisin 70-75 mph). If I keep it around 55mph it gets around 53 mpg. Yes 120 miles sounds about right to me, but mine is a vn700 and you've got 10 inches & 100 lbs more than me. I don't know for sure if the seafoam will have a big impact on fuel milage. I to have just recently started useing it.
Not sure if this helps any. Guess what I'm gettin at is, have your trips between tanks been the same typ of roads,speeds,ect. This plays the biggest part in fuel consumption.

"DAISY" 85 VN 700 19K
Owned since 09/12/09
Done list
Windshield
Marbled
Metal radiator drain plug
Removed exhaust baffles
TOCMAN. ACCT's
VN900 Seat

TO Do list
To much to list


VN900 seat on my VN700
https://www.vn750.com/forum/showthread.php?t=12903

Debaffling my stock pipes
https://www.vn750.com/forum/showthread.php?t=12756
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post #5 of 8 (permalink) Old 11-10-2009, 06:49 PM
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Quote:
Originally Posted by Chavisimo View Post
Thanks! Would the Seafoam have any effect on the MPG of the bike? I've been getting 120 miles (without reserve) per tank of gas. The bike dies at 120 miles as I found out the other day when I was pulling into the gas station hehe. Does 120 miles per tank sound about right? I about 6'4" tall and 350 pounds so I know i'm putting some strain on that 750 hehe.
that sounds like exactly what i used to get..



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post #6 of 8 (permalink) Old 11-10-2009, 08:29 PM Thread Starter
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The MPG estimate is from all highway driving and from combination of highway and city driving. straight highway driving between 70-75 mph I got 120 off of exactly 3 gallons. I got 110 miles off of 3 gallons when driving within the city from home to work. Also, I made a mistake on the idle RPM. Its set to 1500 RPM, not 1100. I set it to 1500 when the bike was crapping out on me because of the bad R/R. I have not reduced the idle back to 1100 since i've replaced and relocated the idle. I thought the highway driving would give me a lot better mpg then the straight city driving.

Since the R/R replacement, i've been kinda chicken to take the bike on a trip. Still making short trips to build up confidence that it was the R/R giving me all that electrical headache.


VROC Number: 31246
2003 Kawasaki VN750 SOLD
2006 Honda VTX1800C
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post #7 of 8 (permalink) Old 11-10-2009, 08:58 PM
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At 60 mph and below, with few stops, I get 50 mpg. At 75 mph, it drops to around 40 mpg. Since a clean carb (or injector for that matter) performs better, I would think a Seafoamed carb would get better mileage. But it may not be that much different!

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post #8 of 8 (permalink) Old 11-10-2009, 09:09 PM Thread Starter
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Thanks for the feedback. I drove home today from work and did not have any problems at all. I kept an eye on the RPMs at low speeds and its was fine. I guess seafoam works faster then I thought hehe. I'll go ahead and use it on the next 2 tanks and then once a month.


VROC Number: 31246
2003 Kawasaki VN750 SOLD
2006 Honda VTX1800C
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