Question about Yamaha Motorcycles

1 Answer

1976 tt 500 points and condenser installation

How to set point gap

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.


    An expert that got 20 achievements.


    An expert that got 10 achievements.

  • Yamaha Master
  • 40,627 Answers

Hi, Conatyl for this scenario you will need your service/owners manual if you can't find the first and best tool you ever bought for your Yamaha, despair not, for a mere zero $0 you can download another one. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below. Good luck and have a nice day.
1977 Yamaha XT500D No spark at points since rebuild
How to adjust and restore points on your vintage motorcycle
1976 1981 Yamaha TT500 Repair Manual Clymer M405 Service Shop Garage
OEM parts for Yamaha
Yamaha TT500C 1976 Owner Manual

Posted on Feb 06, 2017

6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 65 Answers

SOURCE: what is the {points gap} on a 1979 gs425L

.014"-.016" is the point gap

Posted on May 06, 2009

  • 3567 Answers

SOURCE: having a problem with points type ignition on a

The base setting for the point gap is 15 thousandths. Set the left cylinder to .015 and check the timing with a timing light. Adjust the timing for the left side by moving the base plate up or down. Now change the timing light to the right cylinder and check the timing for the left cylinder. Adjust the timing for the left side by changing the points gap if the left base plate can not be adjusted, ( I can't remember if the left plate adjusts or not ). The wires should not be grounded. Check to see if the timing advances as it should when the revs increase. Below is a photo from an 1979 RD400 owners manual. Yours looks the same.

f9ff258.png Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part and/or the notation "Not Available" is in the description, the part is not in stock. It looks like they have points for a 1975 RD350 and they should work on your bike.

Yamaha can tell from the VIN what exact year and model your bike is. Check with them as I don't think the 350 was made in 1979.


Posted on Jul 12, 2009

  • 124 Answers

SOURCE: Points gap for Kawasaki KE 125

Point gap will be .14. Make sure after you set the points at .14 you attempt to insert a .16 feeler gauge. It should not go between the points without moving them. Also, a .12 feeler gauge should slip in without any force.

Posted on Nov 23, 2009

  • 3567 Answers

SOURCE: 1976 ty175 yamaha cutting out after a few minutes

Several things could cause this and are somewhat inter related. I would clean the carb inside and out to start with. Check the reeds for cracks, chips and distortion. The cost is only a can of spray carb cleaner. Timing is not likely to be a factor. Use a timing light to check if you wish, again the cost is little or nothing. The most likely causes are bad crankshaft seals and/or the need for new seals on the intake assembly. The metal carb fits into a flexible fitting between it and the reed assembly. When the fitting gets old and hard it tends to loose it's ability to seal. Often they will develop cracks that let in air which leans the fuel mix. When the engine warms up the cracks widen and the engine runs poorly.

Posted on Dec 02, 2009

Testimonial: "thanks again guru!! u always had great explanations!! i greatly appreciate u thanks,Bill"

  • 8404 Answers

SOURCE: I have 1971 honda cb450 what do I set the points

try .035 ... or you can look at a generic service manual at

I love that model!

Posted on May 06, 2010

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

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

2 Answers

What is the points gap?

Points gap was used before electronic ignition. The "points" were a set of contacts found under the distributor cap and rode a cam that opened and closed them at the firing point you set with a timing gun (a gun shaped device that flashed light, when the first cylinder plug fired) aimed at a scale on the front of the engine overhanging a mark on the crankshaft pulley. The points were set to a gap suggested by the manufacturer.

Mar 19, 2015 | Cars & Trucks

1 Answer

How to set the points on a 1973 yamaha lt2 100

I do not know what the dwell or correct gap would;d be to get the correct dwell so I cannot help that way. You will need to google it or get the gap and/or dwell from a Yamaha or other such service center. To change point gap normally there is a screw which will loosen and allow the points to be moved (one side of the point assembly) so that with the cam that moves the point assembly apart on the middle of the high point the points can be set with the required gap between the open points to give the required dwell for coil primary saturation.,

Nov 27, 2014 | Yamaha Motorcycles

1 Answer

1968 Ford Ranchero

Spark Plug Gap is .032 inch. Many have started using .035 as it is easier to set using most newer tools.

Point Gap is .016 inch. You may also set point gap by using a dwell meter if you have one. That setting would be 32 degrees.

Aug 01, 2014 | Lisle 67870 Spark Plug Gauge Gap

1 Answer

Points gap 305 smal block

Set your points gap using a dwell meter - 30 degrees (range 28 to 32 degrees). Spark plug gap .035"

Jul 13, 2014 | Chevrolet Chevy Cars & Trucks

1 Answer

Gape setting for points on massey fergson 135 gas motor ?

need spark plug gap and point gap for MF 135

I found this link about the points gap and plug gap.
"My I&T manual says .021 point gap and .025 plug gap."
There's a lot more information on the MF 135 on the web. Just do a search ' MF 135"; "massey ferguson 135 perkins gas engine point gap"

Jun 14, 2014 | Computers & Internet

1 Answer

What is the point gap setting for a 1969 AMC V8?

generally speaking we look for 30 degrees dwell,but setting the point gap at 18 thousands of an inch work well,then adjust the timing. dwell changes timing but timing does not change dwell,so adjust the points first then set the timing

Jul 27, 2012 | AMC AMX Cars & Trucks

1 Answer

When setting the points, I think the gap is set at .015 is that correct? Do you set the points when they are on the high or low side of the lobe ? ed

Yes, the point gap is .015

There is a line etched on the face of the point cam. This lines up with the rubbing block (cam follower) of the points. This is the position that the gap is set at.

Jan 31, 2011 | 1970 Triumph T 100 R

2 Answers

I have 1981 Yamaha SX 650 and can't find the point gap and valve adjustment settings anywhere? Any answeres

Hi, the points gap is 14 to 16 Thou. Inlet valves 4 thou, exhaust valves 6 thou. I dont know the settings in metric, so using a set of imperial feeler gauges, that measure in thousands of an inch.
An easy tip for setting the points, is use the thickness of a standard cardboard, Business Card, it is the correct thickness for your points gap.

Jul 21, 2010 | 1981 Yamaha XS 650 H

1 Answer

Need to set the timing on a 1978 kawasaki 650kz. how?

you have 2 sets of points one set attached directly to main backing plate the other set has another backing plate attached to main backing plate .start with the first set turn motor till points at the widest gap set gap to0.35mm turn motor back till points close diconect push on terminal and attach multimeter lead to points terminal attach
other multimeter lead to earth tun motor to the points break continuity with earth check position of f mark to pointer move backing plate till points break contact on f mark now do same to next set of points nb if points worn you might have to run a much smaller gap 2 get rite!

Jul 20, 2010 | 1978 kawasaki Z 650

Not finding what you are looking for?
Motorcycles Logo

Related Topics:

78 people viewed this question

Ask a Question

Usually answered in minutes!

Top Yamaha Experts


Level 2 Expert

281 Answers

Steve Sweetleaf
Steve Sweetleaf

Level 3 Expert

1144 Answers


Level 3 Expert

2600 Answers

Are you a Yamaha Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides