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What is the spark plug gap on a 1978 honda xl 350 motorcycle

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Hi, Anonymous for this scenario you will need your service, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere $10 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
197 xl 350 HELP please
XL350R service manual repair 1984 1985 XL350 Download Manuals Technical $10
Honda XL350 Owner Manual

Posted on Sep 12, 2017

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Posted on Jan 02, 2017

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SOURCE: spark plug gap

Don't change the setting on the plug. The 400's are happiest when you just plug in new ones and ride. They like NGKs the best. There are two types for the 400. One runs hotter. This choice will depend on which country you live in and what the ambient temperatures are.

Posted on Nov 10, 2008

  • 2336 Answers

SOURCE: spark plug gap

it is 0.036 in

Posted on Nov 10, 2008

  • 404 Answers

SOURCE: need to know the flote height for a 1968 honda motorcycle 350

Hi! I presume you have a Kei Shein carburettor set up? if so there really isnt a float height as such, if you are experiencing flooding or fuel spewing out of the rear aperture it is more likely the float needle/valve is either worn or has foreign matter stopping it from shutting out the fuel supply.
When you take the float bowl off and look at the float you'll see at the end under a tang a tiny spring around the tang which is attached to the float needle careful removal will reveal all for servicing.
O.K. penny dropped? do you mean Needle Jet? if so try middle to start and check plug colour after good run, remember raising richens the mixture lowering weakens. Trial & error I'm afraid as mileage, wear and fuel quality all determine final result?
Good luck!
Paul 'W'

Posted on Dec 06, 2008

ollie reece
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SOURCE: what is the gap for a cr250 honda spark plug

it is 32.0 buddy

Posted on Sep 19, 2009

  • 1978 Answers


.031-.035 plug gap

Posted on May 15, 2010

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Hi, Kenneth for more information about your issue and free downloads that you will need please visit the websites below. Good luck and have a nice day.
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Hello, I have a 1978 honda xl 125 motorcycle. my father is a mechanic. butwe were wondering what the ignition timing need to be on? thank you

There should be 3 marks on the flywheel. As the flywheel turns counterclockwise, the first mark is the full advance timing mark. The next mark is the BTC timing mark. the third mark is the TDC mark. Set the points to .015 gap then use a timing light while rotating the base plate to line up the BTC mark at idle speed, 600 rpm. Now check the full advance timing mark at around 2000 rpm. The idle timing is not as important as the full advance timing. Hopefully the spark advancer is in good condition. Please rate my answer. Thanks!

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I Have a 1978 Honda xl125 dirt bike .... my problem is that i have to change the spark plug ever second or third ride.. it will not make any spark after. the spark plug gap will be all black ( the side...

Sounds like carbon fouling from excessive oil being burnt. Is the exhaust a bit smokey? If so, a new piston and rings et may well be required.

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clean the spark plug. or put a new spark plug

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replace plugs 1 at a time unplug spark plug wire unscrew plug with socket wrench,check plug gap to make sure their to motors specs,install!

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