- Torque Specs Harley Handlebars
- Harley Evo Torque Specs
- Torque Specs Harley Cam Cover
- Torque Spec Harley Exhaust
It's time I addressed the issue of tools & torque specifications. What issue? Address what you may be asking? Good questions! With over 100 videos uploaded and the vast majority of those relating directly to performing some kind of upgrade, customization, maintenance or repairs on motorcycles two questions surface with some frequency. These two questions are specific questions that should not be asked. These questions if asked then bring a question I want to ask back. The two questions I am referring to are: what size socket do you use for (bolt, nut, part here), and what are the torque specifications for (bolt, nut, part here).
The next service manual picture is of the final torque for the compensating sprocket bolt on a 2015 Street Glide Special with a 103: 175 ft-lbs. 35 ft-lbs difference between the two. This is a perfect example on a critical drive component as to why you should not be asking about torque specifications. The 2017 Harley-Davidson Ultra Limited and all other motorcycles made 1894-2020. The Harley-Davidson Milwaukee-Eight engine is the ninth generation of 'big twin' engines developed by the company, but only Harley's third all-new Big Twin in 80 years, first introduced in 2016. These engines differ from the traditional Harley Big Twin engines in that there are four valves per cylinder, totaling eight valves, hence the name. Sep 17, 2010.
The first question I want to ask back is: why are you working on your bike without a service manual? How did I know you weren't using a service manual? If you were referring to a service manual for your specific brand, make, model, and year of motorcycle you would have the torque specifications at the flip of a page and would not be asking for those values. I am quite adamant in my videos about the use of a service manual if you're going to work on your bike. When I get this question it is not one I will answer, and I would encourage other viewers not to answer their question either. There are to many variables on torque specifications between brands, makes, models, and even years of bikes and it's quite possible the person asking is referring to a completely different motorcycle. I had a guy tell me the torque specification on one of my 2015 Street Glide Special videos was wrong because the torque value listed in his service manual was different for his 2008 Road King. Seriously? Well, duh, yeah, different year, make of bike, hell, even a different size of the engine! Of course, it's going to be different! I guess he thinks his bike references the final word on torque values worldwide for each and every motorcycle…. This type of issue is why I generally do not mention specific torque specifications and why I will not answer this question when asked.
To validate this argument I want to refer to a critical drive component on the motorcycle: the Compensating Sprocket. The pictures below will help you understand why I don't give torque specifications when asked. The first service manual picture is of the final torque of the compensating sprocket bolt on a 2012 Street Glide with a 103. 140 ft-lbs.
The next service manual picture is of the final torque for the compensating sprocket bolt on a 2015 Street Glide Special with a 103: 175 ft-lbs. 35 ft-lbs difference between the two.
This is a perfect example on a critical drive component as to why you should not be asking about torque specifications. You should be using your service manual for your make, model, and year of bike to obtain the correct values.
The other issue is when the question is asked about the size of the socket or wrench needed for (bolt, nut, part here). It never ceases to amaze me on how many people seem to think that every nut and bolt on every model and year of bike are the same. Manufacturers change sizes quite frequently. So when the question comes up about socket sizes my immediate thought is are they even working on the same make and year of bike? My other concern at that question is: are they even capable of properly using tools if they can't even figure out what size socket or wrench they need for a nut or bolt? Not everyone has a mechanical aptitude. I get it. I also understand that a lot of people would like to work on their bikes, I think that's great. I also understand there are different levels of mechanical aptitude. Where one person might have no issue pulling a primary, another person may be quite concerned about changing brake pads. There is nothing wrong with different aptitude levels and how much someone is willing to wrench on their bike. There is an issue if they cannot determine the size of the socket or wrench they will need. This demonstrates a serious lack of understanding basic tool use and assessment inability. If someone cannot determine the bare basics of socket and wrench sizes they shouldn't be wrenching on their bike. Not being able to utilize tools properly could lead to serious injury or death if nuts and bolts are not secured correctly with the proper tool size and torqued to specification. Then add the possible inability to properly utilize tools and the outcome could be quoted from Chef Gordon Ramsay on Hell's Kitchen: 'This is a disaster'!
The bottom line is this: If you are wanting to wrench on your bike get a service manual for your specific make, year, and model. Use my videos as a visual reference before or as your working on your bike. Refer to the torque values from your service manual as necessary. Get the proper tools and know how to use them. You can usually purchase the tools you need for a task for less than the cost of paying a service department to do the work for you. Then you have the tools for repeating the same task later and for any other work you want to perform.
Ride Strong Wrench Proud
Harley Tune Up Specifications:
Print It And Go
Need a quick PDF printout of this chart to take to the garage? Click below to print a PDF of this file and take it mobile
Point Gap for 1963 to 1981 = .022'-.024
Point Gap for 1982 to 1985 = .015'-.016'
Spark Plug Gap:
1963 to 1970 = .040'
1971 to 1981 = .025'
1982 to 1985 = .040'
1986 to 1989 = .025'
1990 to 1995 = .035'
1996 to 2004 = .030'
Harley Davidson Engine Specifications for 1963 to 1981 two cycle engine:
Cylinder to Piston Clearance measured 3/8' below bottom ring land = .006' to .007'
Piston Ring End Gap = .007' -.017'
Piston Diameter is approximately 2.739'
IMPORTANT NOTE: Always bore cylinder with the piston on hand to insure a proper fit due to piston diameter inconsistencies.
Torque Specs:
Cylinder Head Bolts:17-21 ft/lbs (2.4-3.0 kgm)
Crankcase Bolts: 9-11 ft/lbs (1.3-1.5 kgm)
Axle Nut, 1976 and older: 50 ft/lbs (7.0 kgm)
Axle Nut, 1977 and newer: 100 ft/lbs (14 kgm)
Primary Clutch Nut, 1963 to 1981: 75-80 ft/lbs (11 kgm)
Oil Mix Specs for 1963 to 1995 Harley Davidson & Columbia Par Car without oil injection:
Use 1.5 ounces of any good quality two stroke oil to one gallon of gas.
Clutch on 1963 to 1981 uses 12 ounces of 75/90 wt. gear lube.
Use 75/90 wt in the differential on 1963 & newer Harley & Columbia.
Harley Davidson Engine Specifications for 1996 & newer B&S Vanguard four cycle engine:
Torque Specs Harley Handlebars
Harley Evo Torque Specs
Torque Specs Harley Cam Cover
Torque Spec Harley Exhaust
