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post #1 of 8 (permalink) Old 05-19-2011, 10:09 PM Thread Starter
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Gap size?

Anyone know what the plugs for these bikes are supposed to be gapped at? Ive been told that they come pre gapped but I check the plugs I bought today and they were gapped at like..0.25 or something, and then I called advance to find out what they're supposed to be and dude told me 0.35, which is what they're gapped at now, but I just looked it up and it seems like the most common gap I find is 0.8/0.9.....wtf.
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post #2 of 8 (permalink) Old 05-19-2011, 10:25 PM
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Anyone know what the plugs for these bikes are supposed to be gapped at? Ive been told that they come pre gapped but I check the plugs I bought today and they were gapped at like..0.25 or something, and then I called advance to find out what they're supposed to be and dude told me 0.35, which is what they're gapped at now, but I just looked it up and it seems like the most common gap I find is 0.8/0.9.....wtf.
Ma Kaw says .032-.036. I set mine at .032

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post #3 of 8 (permalink) Old 05-19-2011, 10:27 PM
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Gap should be 0.034~0.036 I believe. That is in hundredths of an inch.

Listings in millimeters would be different, which might be the .8 .9 you found.

Sorry , too tired to look up the I inch to milimeter conversions.

Oops fixed the decimal point.......

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post #4 of 8 (permalink) Old 05-19-2011, 10:36 PM
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.8-.9mm would be something like .032"-.036", I usually just use .04 as a multiplier for the simplicity, so .04 x .8 = .032, & .04 x .9 = .036 so that is what the .8-.9 is about I think... Like a 9mm Luger, 4x9=36 or about a .36 cal. and a 10mm is about a .40 cal., I'm simple, so I have to do simple...lol... All that is give or take a few feet...
PS- Or technically .8-.9mm = 8,000,000-9,000,000 angstroms...lol...
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post #5 of 8 (permalink) Old 05-19-2011, 10:37 PM
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Quote:
Originally Posted by Knifemaker View Post
Gap should be 0.34~0.36 I believe. That is in hundredths of an inch.

Listings in millimeters would be different, which might be the .8 .9 you found.

Sorry , too tired to look up the I inch to milimeter conversions.
I just looked it up. .8mm - .9 mm = .032-.036

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2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
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post #6 of 8 (permalink) Old 05-19-2011, 11:35 PM Thread Starter
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Well, I have them set at 0.35 now, and its running good. My main issue is my carbs are done for and the bike keeps loading up and fouling my plugs, and starts to run like **** after a while.
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post #7 of 8 (permalink) Old 05-19-2011, 11:44 PM
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Quote:
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Well, I have them set at 0.35 now, and its running good. My main issue is my carbs are done for and the bike keeps loading up and fouling my plugs, and starts to run like **** after a while.
Carbs aren't done for. Could be a bad float, poorly adjusted float, bad needle valve. Where are your air/fuel mixtures set at? You may be running very rich. 2 1/2 to 3 turns out is usually good.

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2001 Vulcan 750
marbled
TOC upgrade on ACCT
Air/fuel mixture set to 2 1/2 out
rectifier relocated
splines lubed
iridiums
decals removed
upgraded mirrors
Pic up coil mod done
degoated
All LED lighting
Upgraded Mosfet rectifier
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post #8 of 8 (permalink) Old 05-20-2011, 12:19 AM Thread Starter
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Carbs aren't done for. Could be a bad float, poorly adjusted float, bad needle valve. Where are your air/fuel mixtures set at? You may be running very rich. 2 1/2 to 3 turns out is usually good.
I dont know man, Im running rich in the rear cylinder and lean in the front. My gas tank has been coated because it was ridiculously rusted, and I think some of the clean coat may be coming off and getting sucked up into the jets. Ive cleaned and cleaned the carbs, Ive had a really good mechanic **** around with the bike and it just aint working out. Im gonna have him grab me a tank, petcock, and a set of carbs, slap em on and be done. Hopefully.
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