Question about RTO Spur Sprocket For Stihl 017, 021 Chainsaws

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028 wb how do you gap the points with the flywheel removed

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You need a cam tool--probably easier to see your Stihl dealer and have them set the points. Good luck!

Posted on May 05, 2010

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1 Answer

Spark plug gap for a1976 hd XLH sportster


Hi Anonymous, if you have a points ignition system H-D spark plug # 4 is gapped at .028" electronic ignition takes a # 4R gapped also at .028" and they both are torqued at 30 ft lbs. Good luck and have a nice day.

Sep 15, 2015 | Motorcycles

1 Answer

I have a 1975 Yamaha dt400 it has a points ing. In it how do I set the timing and what is the settings for it? ?


Take off left sidecover,......Remove flywheel nut and washer. You'll probably need to put the bike in 4th or5th gear and get someone to stand on the rear brake as you remove flywheel nut and washer.......Screw the japanese flywheel removal tool into the flywheel.....tighten the center bolt of the tool till it firmly butts on crankshaft......Strike the center bolt of the flywheel tool semi-hard with a hammer to "shock" the tapered fit of the flywheel and shaft...... Tighten the center bolt of the tool a little and repeat till flywheel is dislodged......Gently remove flywheel. There are powerful magnets in the flywheel so hold onto it tightly as you gently draw it off the shaft......You'll see the points and condenser....... Remove them but when you put the new points in, the little washers must go on precisely like they were on with the old set of points,otherwise the points will be shunted to ground and you'll never get any spark......After you've installed the points gently replace the flywheel on the shaft being careful to make sure you're not smashing the rubbing block part of the points......Oh yeah there's a flywheel key imbedded in the shaft. It insures proper location of the flywheel in relation to the piston. Sometimes they'll shear or get deformed. Replace it if it needs it. The bike may still have spark if it is sheared, but it will be at the wrong time........Put flywheel on and tighten flywheel tight.. I mean tight. If you don't you'll shear the key. Don't strip-out the threads though......The points are adjusted thru the windows in the flywheel.. It's kind of a hassle until you've done it a bunch of times but what you do is rotate the flywheel and make sure the points are closed at the low part of the ramp on the flywheel. Slowly rotate the flywheel and you'll see the points opening. The goal is to have the points break open at the same time the marks on the flywheel line up with the reference point on the engine.. The points have a little slot usually that helps you open and close the point gap. Basically the larger the gap=advances the timing.......the smaller the gap= retards the timing........ Good Luck

Feb 19, 2015 | Yamaha Motorcycles

1 Answer

What is the corect ignition timing on 1981 suzuki gs 750l?


According to the spec sheet it is:
Ignition type: Battery/coil
Ignition timing: 17degrees BTDC at 1500 RPM
Point Settings: 0,35mm / .014" point gap
Plug type: NGK B8ES
Plug gap: .024 -- .028"

Aug 16, 2014 | Motorcycles

1 Answer

Set timing on tecumseh 5-H.P. gasoline engine model H50-65371 J


Indications that the motor is out of time: jerks the rope out of your hand when trying to start, pops out the carb, runs but has no power and sounds 'off'.
When assembling the motor a dot on the cam gear and a dot on the crank gear need to be lined up.
If the motor has run correctly before the problem and has not been disassembled then the problem is likely external.
There are no actual timing adjustments. The flywheel key holds the flywheel in the correct position. If it is sheared or partially sheared the timing will be off. Check the flywheel key by removing the flywheel and visually inspecting the flywheel key; replace if not 100%. On assembly be sure the flywheel nut is tight or it will shear the key (again), then set the armature air gap ( gap between ignition module and flywheel magnet) to .020
On older motors the points gap can affect timing also but I dont believe your model has points. The points gap is also .020

Nov 19, 2012 | Tecumseh 5hp Engine Snow King Mtd Blowers...

1 Answer

The bike is starting only with small plug gap.If we set the gap to original it wont start? tell me the reason?


.....A weak battery comes to mind for starters. A carboned up spark plug is another; start with a new spark plug. If I recall correctly from 39 years ago, your bike has ignition points and condenser. Remove the points cover (on left end of the overhead cam), and check the points. Burned? Pitted? Get a new set of points and condenser but for now, just file the points a bit using an emery board or metal fingernail file. Set the points to .015 clearance at the high point on the cam lobe. If you have a timing light you could check the timing and adjust as needed by rotating the points base plate left or right. Bad points give resistance to the flow of electricity. When the points are closed, the condenser gets charged up. Less electricity going through the points means less of a charge going into the condenser. Now the points open up and the stored charge goes from condenser to coil. The coil then produces a spark. With a low charge in the condenser, the spark is weak and will not jump a wide gap. Set the plug gap to very little and the weak spark can jump the gap. The standard gap is .028. ....... I don't recall when Honda move the points to the flywheel but the images below may help if your bike is that style. Clean any rust on noted parts; magnets and pick up coils. Okay, now I have done my part. Now you gotta do yours; please rate my answer. Thanks! tombones49_177.giftombones49_178.gif

Jun 15, 2011 | 1972 Honda CB 100

1 Answer

I'd like to know what steps to take to replace the contact points on a 1978 Poulan Micro XXV Super Deluxe 14" chain saw


Its a long time since i saw one of these, however, start by removing the starter cover screws and the starter itself, you need to remove the flywheel nut,1/2 spanner as far as i remember, strike the non magnet side of the flywheel with a suitable hammer, the flywheel should just pop off, remove the points back plate cover, this should just pull off, the points and condensor are all one peice, held with two screws, either clean the points or replace the assembly, the back plate will have slots to allow you to set the points gap, the gap is between 12 and 15 thousands of an inch, put a small amount of grease on the felt pad against the cam, refit the flywheel and nut, take care to re fit it onto the woodruff key properly, the air gap between the coil and the flywheel should be set at approx 0.5mm, re fit the starter and check for a spark.

Apr 02, 2011 | Poulan 14" Chainsaw

1 Answer

5200 no spark


Remove the left side cover to expose the flywheel and ignition module. Set the module pole gap by turning the flywheel magnets under the module, insert a thin business card into the pole gaps, loosen the module screws to allow the module to contact the magnets. Tighten the screws and turn the flywheel somewhat to remove the card. Turn the flywheel one full turn to make sure the gaps do not close up at any point. Remove the ignition switch wire from the coil connection (not the pole ground), and install a fresh spark plug gapped at 0.020". Try again for spark. If nothing, replace the module. Hope this helps!

Nov 25, 2010 | Poulan Garden

1 Answer

No spark


Assuming that you have tried a new plug with no results, remove the flywheel side cover to expose the flywheel and ignition module. Remove the ignition switch wire from the module and try for spark again. If nothing, replace the module. Use a thin business card for the pole gap gauge--place the card between the flywheel magnets and the module, then allow the two parts to stick together. Tighten the screws, then rotate the flywheel to remove the card. Turn the flywheel one full turn and make sure the gap doesn't close up any further. At this point, you should have spark. Set the plug gap at 0.020". Hope this helps!

Jun 27, 2010 | Poulan Wild Thing 2375 18" Gas Chain Saw...

3 Answers

Removing flywheel and clutch assembly ms 250 stihl


You need a piston stop, watch part of this to explain use:
http://www.youtube.com/watch?v=cdqkIuVNUQc
Make one with starter cord or rope:
I suggest a length of starter cord or nylon rope be used instead of the piston stop (retain 6" ± so you can remove it). Make sure the piston is near the top of the cylinder before feeding the cord or it can fall through the exhaust port and damage the piston as it rises. HTH
Lou

Nov 18, 2009 | Garden

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