Question about 1986 Yamaha RD 350

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I've done ignition timing with timing light used in maruti workshop & set point gap at 0.3 mm, still pressure is getting back.

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Posted on Jan 06, 2011


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Wanting to know gap settings for plugs and points for 92 corolla hatchback

There are no points, the ignition is electronic, and is controlled by the ECU,

The plugs are gapped to 0.8 mm

Dec 18, 2016 | Toyota Corolla Cars & Trucks

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I have a 1993 ford Econovan maxi . I have ignition point . What is the gap on the ignition point . Thanks

point gap is .40 to .50 mm ( point 4 to point 5 mm) or .015 to .20"
most point distributors are at the .02 " mark but check and adjust as points to wide will misfire under load or lack power if too close
point gap variations can change ignition timing

Nov 20, 2016 | Ford Cars & Trucks

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What is the dwell angle on a 3f engine if point gap is 18 thou

dwell angle is the no of degrees rotation between points closed and points open and for example on a 4 cylinder engine ( 4 lobes =90 degrees the dwell would be around 45 degrees available
there is an adverse relationship between point gap and dwell angle
the closer the points the bigger the dwell and conversely the bigger the gap the smaller the dwell angle
in a distributor the point gap of 18 would have a large dwell angle and that affects ignition timing
in your workshop manual there will be a dwell angle specification and if you set the points at .020 " that will put you close to the dwell angle specification
from there you adjust the gap to obtain the dwell setting
after yo have the dwell set , adjust the ignition timing
there is plenty of information on dwell angle, /point gap if you type in ---dwell angle to point gap relationship--

Aug 16, 2016 | Cars & Trucks

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What is gap

Hi, Mike pertaining to engine spark plugs, "GAP" is the distance between the positive and negative electrodes at the base of the plug and is measured in thousands of an inch or mm by using a round pin gap gauge or flat blade feeler gauge. Every engine manufacturer has a specific design-size-heat range- gapped spark plug. Gaps will vary depending on engine brand. Gap is also referred to in engines using a mechanical "POINTS" ignition system instead of electronic ignition (what is the points gap) for more information about your question and valuable "FREE" downloads that you will need please visit the websites below. Good luck and have a nice day.
How to Inspect and Adjust the Spark Plug Gap NGK BOSCH CHAMPION N3 DENSO
Points and Condenser Setup wiring Setting Gap Cleaning Points Setting...
Multi Ground Spark Plugs NGK Spark Plugs Tech Video

Mar 12, 2016 | Motorcycles

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Whats the valve clearance for my Diahatsu Mira 1998 850cc?

Mira 847 cc 1993- Engine Code ED 10
Ignition data
  • Ignition system type: El-ecu
  • Ignition coil make/type: Dia/-
  • Supply voltage: 12 + Volts with ballast resistor
  • Primary resistance: 1.35-1.65 Ohms
  • Secondary resistance: 22000-30000 Ohms
  • Distributor make/type: Den/-
  • Contact breaker gap/air: 0.2-0.4 mm
  • Dwell angle: Deg\par Ignition Timing - unleaded: 5 2/900 Deg eng/rpm (without vacuum)
  • Ignition Timing - leaded: Deg eng/rpm (without vacuum)
  • Timing mark location: Flywheel
  • No 1 plug location: Pulley
  • Firing Order: 1-2-3
  • Spark plug make: Bosch
  • Spark plug type: WR6DC
  • Electrode gap: 0.7-0.8 mm
Fuel System
  • Fuel type: U/L
  • Fuel pump type/pressure: bar
  • Engine idle speed: 900+100/-50 rpm
  • Fast idle speed: 2000 rpm
  • CO level at idle speed: 1.0
  • 0.5 Vol %
Engine Data
  • Valve clearance - inlet: 0.25 mm (hot)
  • Valve clearance - exhaust: 0.30 (hot)
  • Compression pressure: 1.2-1.5 bar
  • Oil pressure: 2.5-5.6/3000 bar/eng/rpm
  • Radiator pressure cap: 0.6-1.05 bar/type
  • Drive belt 1 - size: 9.5x925/KDB 925 mm/type
  • Drive belt 2 - size: mm/type
Electrical System
  • Alternator output: 10/2500 Amps/eng/rpm
  • Regulated output: 14.2-14.8 Volts
  • Battery: 12/35 V/Ah
  • Starter motor make/type: Den/-
Other data
  • Clutch operation type: Cable
  • Clutch adjustment: 10-30 mm
  • Cambelt failure: Damage
  • Cambelt Part Number: 13514-87211
  • Tyre pressures: 1.8(26)f 1.8(26)r bar (psi)
  • it took me 3 seconds to google this then i realized that this is a older engine then yours

Oct 30, 2014 | 1996 Daihatsu Mira

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My 1988 Toyota Tercel starts and immediately stops unless I flutter the gas. Carb new, cylinder head, pistons, rings, bearings, all new. Checked for correct timing. Assuming its not the carb or the

Hi Richard, Your vehicle does not have engine management and therefore there are no codes to read. Before anything else, check all vacuum tubes and hoses are connected correctly to the carburetor and to the sensors and valves on the manifold and cylinder head. Make double sure of the hose connection between the lower part of the carb and the intake manifold. If that is not connected or if it is leaking the engine will exhibit the symptoms you describe. The ignition timing on your vehicle is 10 degrees before top dead center. The timing marks are on the front pulley and the timing cover. These vehicles were fitted sometimes with electronic ignition and sometimes with contact breakers and condenser. If yours has the latter, you should first set the breaker or point gap to point four five mm. This should be done using a feeler gauge. To do this, rotate the engine until the points are fully open against the cam inside the distributor and then adjust by slightly loosening the two screws holding the breakers in place. Move the lower part of the base until the required setting is correct. (It is critical) Once the gap has been set tighten the screws and recheck the gap. Turn the engine by hand to the !0 degrees BTDC firing on piston number one and then loosen the 10mm bolt which locks the distributor and turn it so that the points are closed and just on the verge of opening. The difference between open and closed is the lightest possible finger pressure. Lock the distributor again and make sure that there is a spark at the points. If the vehicle has an electronic distributor, take out the rotor arm and the protective cover under it and set the timing by placing the rotor at the position where it has just past the pickup coil. This will allow the vehicle to start. As the vehicle has a carburetor and not injection, the management system if fitted will be for emission control but not engine management. Once the engine starts re set the ignition timing with a stroboscopic timing light at 10 degrees BTDC. Always set the ignition timing before attempting any adjustment of the carburetor. Once the ignition timing has been, set if the carb has an automatic choke, make sure it is connected and getting electrical power and that the adjustment is correct. If after doing the above the behavior has not improved significantly you will need to remove the anti tamper cover of the mixture control screw, take a long flat screw driver and insert it. The screw is located at the base of the carburetor. Turn it inward lightly until it comes to rest on the face of the seating and then loosen it three and a half turns. Start the engine and turn the screw in or out until the engine runs smoothly. Let me know how you get on and if you manage to sort out the problem. If not we'll have a rethink on what the problem can be. It would help to know what engine we are dealing with and as many other details as possible. Best regards John

Aug 26, 2012 | 1988 Toyota Tercel 2 Door

1 Answer

How can i adjust contact breaker's gap in maruti 800

most cars fitted with point ,wow old problem i generally set the gap @ .16 thou, if you havent got a set of feeler gauges us an old hacksaw blade ,

Apr 30, 2012 | Maruti Cars & Trucks

1 Answer

Hello! I have a 1975 Z1-B 900. I rode it about two weeks ago. It ran fine. About a week later, I went to start it up, and it would only run on two cylinders, No. 1 and 4. I have replaced the spark plugs,...

Your motorcycle has two sets of points. Each point set operates one coil or two spark plugs. You can try cleaning the point contact surface with a point file.The point may be worn and grounding out to the frame. The bike may need two new sets of points properly installed and timed to run on all four cylinders again. 1st -- Adjust gaps -- Do this separately for each points set. Turn crankshaft clockwise using 17 mm wrench to widest points opening and adjust gap separately for each set of points at 0.3-0.4mm (.012-.016 inch). Each points set has two base screws to very slightly loosen thereby allowing movement to open or close gap, then retighten after setting gap. The widest gap happens when the heel is resting on the highest part of the cam. At this stage nothing but the gap has been adjusted. But this is important because proper gap does affect the subsequent timing procedure. And other screws have remained tight.

2nd -- Set Timing -- Each points set has two mounting screws and pry slots which can be used with strobe light (after slightly loosening the two mounting screws) to align the respective F marks with the timing mark. But if the adjusting plate doesn't travel far enough to allow correct adjustment, then loosen the three mounting plate screws and move the mounting plate.

3rd -- Tighten and recheck --Tighten all screws and recheck timing with strobe light.

Aug 16, 2011 | kawasaki Z1B Motorcycles

1 Answer

I am seeking the points setting/gap for a 1962 auston 6 cyl 4ltr 2.45ton truck hope you can help thanks gary.

If it still has a breaker point ignition system then gap the spark plugs at .032 inch, or .81 mm, and if the distributor has been converted over to an electronic ignition system then gap the spark plugs at .040 inch, or 1.0 mm.

Sep 25, 2010 | Aston Martin DB7 Cars & Trucks

2 Answers

Need to know the timing specs for a essex v6 Bakkie and points gap please


Aug 31, 2009 | 1978 Ford Granada

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