Newbie plug replacement question - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 11 (permalink) Old 01-07-2007, 12:31 PM Thread Starter
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Question Newbie plug replacement question

Greetings!

I've just purchased a 1986 stock, very clean V750 with 20K miles. I'm a returning rider after a long layoff. I'm thrilled to find so many experienced riders here. Not much of a wrench but willing to try. Took my first short ride and noticed poor idle and some popping on decel.

My first thoughts are (thanks to you all): 1) replace plugs, 2) Get some Sea Foam :-) and 3) Install a new MF battery. I have the Kawa shop manual but can't find any procedure to install new plugs. I see 2 plugs but from reading here, I see there are 4.

My question is, what all do I have to remove to gain access for replacing the plugs and battery? Any other tips would be great. Thanks!
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post #2 of 11 (permalink) Old 01-07-2007, 12:39 PM
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There is one plug on each side of each cylinder, for a total of 4.
You will need a thin walled socket.
For battery removal, open the toolbox, remove the two bolts in the rear of it.
Lift the seat, there's the battery. Remove the hold down clamp, disconnect the negative cable first, then positive. This should eliminate any chance of sparks if ya happen to bump something while doing the positive cable.
Pull out the battery.
When reinstalling the new battery, pay close attention to the vent tube to be sure it is routed all the way through to the swingarm area in the middle of the bike without any kinks.
This is just a quick run down, any other questions, just ask.


AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC


"When life throws you curves,
Aim for the apex."

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post #3 of 11 (permalink) Old 01-07-2007, 12:55 PM
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Might also want to check mixture screws for the popping problem. Probably have to turn them out another turn or so from stock.

The thin wall socket is 18mm. Don't forget the antiseize when reinstalling plugs.

Have fun with your new Vulcan !!!

Jon

93VN750, under re-construction
vn750.com Member # 828

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post #4 of 11 (permalink) Old 01-07-2007, 02:24 PM Thread Starter
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Thanks a lot. I really appreciate your wisdom. Doh, the 4 plugs were in front of me the whole time. Popped the seat and see the battery is a Yuasa YTX14AH (L)-B5 so I guess that's a good thing. Heading to the parts store now. Thanks for the tips on battery venting and mixture screws.
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post #5 of 11 (permalink) Old 01-07-2007, 06:16 PM
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Quote:
Originally Posted by DeForestSD View Post
Popped the seat and see the battery is a Yuasa YTX14AH (L)-B5 so I guess that's a good thing. Heading to the parts store now. Thanks for the tips on battery venting and mixture screws.
Yep, it's a good thing to find a maintenance free in there. And with that battery ya wont have to worry about venting.

The idle trouble could be as simple as adjusting the idle screw some.
I prefer mine to idle a little on the low side, but stock is around 1100rpm's.

Have ya read any of the info here on 'marbleing' to reduce and/or eliminate popping?

Excuse the limited assistance. Alot of folks here put the bikes up for the season and it's been kinda quiet lately.

There is also a group at Yahoo for the Vulcan. Alot of members there are here, but that one tends to be a little more active at times.
You can check it out HERE, but ya got to join to view anything there.


AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC


"When life throws you curves,
Aim for the apex."

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post #6 of 11 (permalink) Old 01-09-2007, 12:13 AM
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Welcome to the club....

Plugs- good idea.
Battery- excellent.
Seafoam- Works miracles. I put some in my bike for the first time (about 7k) and the difference was AMAZING. Depending on how youre bike was run prior to you getting it, it may take a couple of tankfulls. But, you will appreciate this stuff in the end.

Ben-
SW Ohio

'02 VN750
Pipes drilled
Spline lubed
R/R relocated
AGM batteried
Iridium equipped
LED tail lighted
8000-ish miled
Soon to be MCCTed

Lovin Life.
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post #7 of 11 (permalink) Old 01-09-2007, 12:20 AM
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Hmmm.. excuse me..
But if the replacement is a maintenance free battery.. you don't have to worry about a vent tube cause the battery is sealed..
*reaching over and snatchin that beer away from hyperbuzzinm cause I just know he did not intend to even suggest pitting anything other than a maintenace free battery in and it had to be the beer that even made him thing about having to riute a vent tube...*

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post #8 of 11 (permalink) Old 01-09-2007, 06:06 AM
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Quote:
Originally Posted by Dianna View Post
Hmmm.. excuse me..
But if the replacement is a maintenance free battery.. you don't have to worry about a vent tube cause the battery is sealed..
*reaching over and snatchin that beer away from hyperbuzzinm cause I just know he did not intend to even suggest pitting anything other than a maintenace free battery in and it had to be the beer that even made him thing about having to riute a vent tube...*
Hey!! I wasn't done with that yet !!!


I realized that and, after I finished the beer that I had hidden behind the jar of mayo, mentioned it....

Quote:
Originally Posted by hyperbuzzin View Post
Yep, it's a good thing to find a maintenance free in there. And with that battery ya wont have to worry about venting.


AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC


"When life throws you curves,
Aim for the apex."

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post #9 of 11 (permalink) Old 01-23-2007, 03:14 PM Thread Starter
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Man, I'm getting so stoked. Saturday is my final session of the MSF rider course. Then DMV, Insurance and I'm ready to roll.

So far I've:
- tightened loose positive battery terminal connection
- connected Battery Tender overnight. Got a nice solid green light
- installed fresh NGK plugs
- added 3 oz. Sea Foam to gas and ran on the center stand til warm a couple of times

Now the bike fires Instantly when I press the starter. I did check the oil sight glass and it appears to be solid opaque suggesting dirty and overfilled ( no oil level line visible). I hope the overfilling isn't hiding some internal issue.

Thanks again to all for taking your valuable time to respond.
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post #10 of 11 (permalink) Old 01-23-2007, 03:25 PM
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Best of luck to ya on the final day at the MSF course


AKA: Tim & 'The Adventure Cycle' VROC #24567, NEVROC, SteelCity VROC


"When life throws you curves,
Aim for the apex."

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