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Discussion Starter · #3 ·
so the top of plug is what I need to be looking at.
I just installed a 2" snorkel should I get a jet kit.
 

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i just changed my plug with 125 hrs. on it. it was black all over the top. what do i need
 

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QUOTE ("swamprat":2jnuzws1)
How does this spark plug look? to me it looks like I'm running rich.
swamprat & coop,

you cant tell a whole lot from a new plug. the plug actually looked allright. definatle not rich.

coop,

i'm not positive but i think a plug will run leaner in the winter and richer in the summer due to temps. thicker air or something. 125 hrs could cover quit some time.
 

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I would leave it where it's at. You might be a tad rich but the carbon is staying burnt off the electrode. From what i have always understood you do not read the electrode or ceramic part of the plug for your final analysis, but it does play a part. The end of the threads on the plug is what you read. You can only get a true reading if you have done the throttle chop test with a new plug.
 

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I think a throttle chop test is when you install a new sparkplug then immediately take the bike out for a wide-open-throttle run through all gears,then before letting up on the throttle you shut the engine off,coast to a stop and remove the plug for inspection.
 

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when i was young and dumb i used to do that, all the way oppen then shut off the eng, it made a cool flame come out the exhaust and a whole bunch of carbon, i assumed it wasn't good to do taht and stoped once i gained some smarts. i've never heard of doing a test like that, i just ride it how its normaly ridden, and then check it. my .02

bowz

it does say honda tech, so i'll prob take his word
mine should say shady tree tech
 

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QUOTE ("Yooperforeman":1rkqkwsn)
I think a throttle chop test is when you install a new sparkplug then immediately take the bike out for a wide-open-throttle run through all gears,then before letting up on the throttle you shut the engine off,coast to a stop and remove the plug for inspection.
You got it! Except you do 1 test at 1/4 throttle, 1 at 1/2 throttle and 1 between 3/4-full throttle. Check plug after each run.
 
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