best sparkplug for k7 - Suzuki Burgman Forum
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post #1 of 16 (permalink) Old 03-16-2017, 10:23 AM Thread Starter
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best sparkplug for k7

Found the scooter in Central Florida with only 1000 miles,the receipts shows first service done at 600 miles, and for some reason few months later the scoot just sat in the garage getting crank once in a while for almost 8 years.
With the help from this forum, changed all fluids, new battery,and now is time for a new K&N filter and Sparkplug.
I live in Florida, so most of my rides will be in mild to hot weather, I need to get a sparkplug that will perform well in this condition
When I first rode the scoot home, at the beginning felt that that I was in a mechanical bull ride, but after 40-50 miles got better.Still doing it (less than before ), but the fixing is out of my league
thank you for your help
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post #2 of 16 (permalink) Old 03-16-2017, 11:15 AM
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Changing the filter isn't a terrible idea, but I kinda doubt the original spark plug needs changing at only 1000 miles. Your hesitation on the ride home was probably due to crummy old gas. Drain the tank, fill it with new, and use a little royal purple in the gas and it should recover nicely...
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post #3 of 16 (permalink) Old 03-16-2017, 01:19 PM Thread Starter
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The day I purchased the scoot, I rode 110 miles home. When I press the brake, and accelerate, vibration is gone
I think more about problem with belt or weights
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post #4 of 16 (permalink) Old 03-16-2017, 01:24 PM Thread Starter
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The day I purchased the scoot, I rode 110 miles home. When I press the brake, and accelerate, vibration is gone
I think more about problem with belt or weights
thinking about rust, Florida is humed, and since the
rice of the sparkplug, is not much......
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post #5 of 16 (permalink) Old 03-16-2017, 01:46 PM
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Always put in about an ounce of Gas Treatment at least every month at gas fill up, or more often. I use an Ethanol Shield, or use something similar gas treatment. How many miles on it now? about 1000? If that low of miles, there should not be anything wrong with the spark plug. Your issues would be in the fuel system. You need to siphon out the old gas and put fresh gas in it, and also put some fuel injector cleaner in the gas.

Since this thing has sat for 8 years, it is essential to check the tires very closely for any cracks or any signs of aging. Check the FDOT DATE on the SIDE of the tires. I would not ride on any tire that is 6 years old or older, no matter how good it looks!

Oil and Oil filter change every 5,000 miles with Premium 4 Stroke Synthetic Motorcycle oil. Later on when you get 10,000 miles on it, you can do your Major Service on it then. Put in a new iridium spark plug (NGK CR7EIX) That plug will probably last you for as long as you ever ride it. Open up and service and clean the CVT, Check everything good (then at 20,000 miles you will service the CVT AND change the belt). Air Filter change every 10,000 miles.
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Al in Sunny Tampa Bay Florida (St Petersburg)
2006 Burgman AN650 K6 White (The White Knight)
2008 Burgman AN400 K8 Red (The Red Baron)
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1971 Kaw Bighorn 350 Enduro Brown
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post #6 of 16 (permalink) Old 03-16-2017, 02:57 PM Thread Starter
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Great advise!, will print and save.
thank you very much
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post #7 of 16 (permalink) Old 03-16-2017, 10:14 PM
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Quote:
Originally Posted by island18 View Post
The day I purchased the scoot, I rode 110 miles home. When I press the brake, and accelerate, vibration is gone
I think more about problem with belt or weights
That could be glazing on the clutch. Accelerating briefly, <3 sec, against the rear brake usually clears it up.

Last edited by Skunkhome; 03-16-2017 at 10:17 PM.
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post #8 of 16 (permalink) Old 03-16-2017, 10:28 PM
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Hey Island18, what year is the scooter? how many miles on bike now?
I'd only change spark plug (don't forget to set the gap) if the bike feels really sluggish ...and after you've already run injector cleaner through it a few times, and a few tanks of good gas.

But yeah, the Iridium Spark Plug would be the best choice. again, don't forget to set the gap.

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Last edited by captainfish; 03-16-2017 at 10:48 PM.
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post #9 of 16 (permalink) Old 03-16-2017, 10:40 PM
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I bought mine with 1800 miles on it and I had the same problem. Heavy vibration, bucking. I did the simple things, Seafoam in the tank, oil change, spark plug. No good. Still getting a ride that was distracting and a slipping sound that sounded something like a dove's coo on acceleration. Coo oo oo oo until the clutch would finally lock in. It stayed that way until I followed QuantumMechanic's fix, which was to sand down the clutch to remove any slippery areas that may have accumulated during the break-in period. I did the sanding twice because I was not aggressive enough the first time and that sound, which is the precursor to vibration, reappeared. The second time I put 400 grit sand paper on a block, being careful to keep the block evenly pressured so as not to get any uneven, angled, ridged, hills or valleys on the pads. I started at the very beginning of the pad and ended at the very end of the pad with every stroke, always in one direction- not back and forth until all those shiny spots/areas were gone . This has worked perfectly for many, many miles, with no hint of a 'coo' sound or a vibration. That is the point in time when I really started love riding my B400. So smooth. So, if your fixes don't work you may need to get into the meat of your clutch pads. It is not difficult at all to do.

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post #10 of 16 (permalink) Old 03-17-2017, 01:34 AM
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Quote:
Originally Posted by captainfish View Post
Hey Island18, what year is the scooter? how many miles on bike now?
I'd only change spark plug (don't forget to set the gap) if the bike feels really sluggish ...and after you've already run injector cleaner through it a few times, and a few tanks of good gas.

But yeah, the Iridium Spark Plug would be the best choice. again, don't forget to set the gap.
Sorry Captain, but I got to jump in here. If you are using the REGULAR SPARK PLUG NGK CR7E you can gap the plug.

But if you install the IRIDIUM SPARK PLUG NGK CR7EIX, DO NOT GAP THE SPARK PLUG, EVER, THERE IS NO NEED TO.
You will probably never need to change the spark plug again for as long as you ride it.

Al in Sunny Tampa Bay Florida (St Petersburg)
2006 Burgman AN650 K6 White (The White Knight)
2008 Burgman AN400 K8 Red (The Red Baron)
1977 Honda CB 750 Silver
1977 Penneys 50 Moped Red
1974 Yamaha 360 MX Yellow
1973 Yamaha 80 MX Silver
1972 Honda QA 50 Red
1971 Kaw Bighorn 350 Enduro Brown
1970 Kaw H1 500 Red
1968 Kaw 120 Scrambler Red
1968 Kaw 120 Scrambler Blue
As far as the cages go, I've had all kinds,
but Toyota's Rule, no doubt!
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