Question about 1984 Honda VT 500 C Shadow

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1983 Honda VT 500 C Shadow carburetor tuning

1983 honda shadow running rich with K&N air filter how to adjust to normal mixture Purchased 1983 Honda Shadow 500 with K&N filter installed. Spark plugs normal heat range DPR8EA-9 with carbon deposits. The bike gets good gas mileage (56-59 MPG) buts has a problem when the engine is hot, sometimes stalls while coming to stop or when trying to accelerate from being at a stop. Keeping engine revved allows the engine to keep running. Sometimes stalls anyway when the throttle is applied at all.

Posted by Joe Davide on

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5 Related Answers

Anonymous

  • 2 Answers

SOURCE: Very Rough Idle and sometimes cuts off while idling




sounds like bad Idle Air control valve Not Cheap


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Posted on Feb 21, 2009

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Molson02536

Harvey N Tawatao

  • 3854 Answers

SOURCE: 94 Camaro 3.4L V6- runs extremely rich

Check the vacum line to your fuel pressure regulator, the line may have a crack in it or the regulator may be bad. 

Posted on Apr 07, 2009

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wyatt1582

johnny wyatt

  • 453 Answers

SOURCE: throttle/Idle/running problem - wants to run too fast, or stall out

RPM's up and down check EGR valve and sensor. EGR valve and sensor control idle. That's why your getting the surging on rpm's and this could be giving out the other codes. If mass flow was bad car will not start and the same for the map sensor. O2 sensor measures gas and air for right mixer. TPS controls 0-60 speed as in throttle respons.

Posted on Apr 28, 2009

Anonymous

  • 207 Answers

SOURCE: Honda Shadow 750 keeps stalling and backfires

you have one of three problems yes ethonal suuuuuuuuuuuuuuuuuuuuuucks buy some stabil ethonal treatment and run it every tank full. REPLACE THE PLUGS FIRST ALWAYS.if that doesnt work drain your carbs with drain srew take your tank off and make sure there is no water in it bet ya $20 its your plugs

Posted on Jun 22, 2009

iain kelly

  • 311 Answers

SOURCE: 86 Shadow Running rich?

best thing to do is reset mixture screws to standard then get the carbs balanced,it will make a big difference

Posted on Jul 04, 2009

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1 Answer

I just bought a 2000 Honda Shadow Sabre 1100. It appears to be "running rich" and friends have said I should adjust the throttle/idle. How do I do this??? Thanks


To adjust your idle speed there is a single screw (usually with a black plastic knob ) that hangs down between the two carburetors. Turning the knob will raise or lower the idle speed. Clockwise will raise the idle. Counter clockwise will lower the idle. Changing the idle speed will not lean or richen the mixture. To change the mixture you will have to rejet the carburetors. I assume the carburetors have been rejetted to compensate for an after market exhaust system. In which case the carburetors are set too rich (too big of a main jet size) to compensate for a bad flat spot in the acceleration. If this is the case, take out the main jets and replace them with the next smaller size. If the machine is stock then check your air cleaner. If it is restricted/dirty, then the extra vacuum caused by the dirty air filter is causing the rich mixture. Try changing the air filter or in stall a high flow air filter like a K&N. This will put the mixture back to normal.

Jun 15, 2011 | 2001 Honda VT 1100 C2 Shadow Sabre

1 Answer

1984 VT 500 C Shadow: 1983 honda shadow -starts and runs, seems to miss ...


The fuel filter is in the tank on the petcock and is self cleaning. I suspect you have bad spark plug caps on your bike the cap is part of the wire. If you remove the wire and take a reading with an ohm meter, the cap should read 5000 ohms . Anything above or below and you should replace the cap. This is probably causing the slight miss.

May 06, 2010 | 1984 Honda VT 500 C Shadow

1 Answer

Can't find a carb rebuild kit for my 1983 Honda VT500FT Ascot


Bike Bandit has everything you need to rebuild the carburetor on your 1983 Honda VT500FT V-Twin Ascot, click on the link below to view

http://www.bikebandit.com/houseofmotorcycles/1983-honda-motorcycle-vt500c-shadow/o/m9690

Apr 18, 2010 | 1983 Honda vt 500 ft ascot

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