To change the lower case lube, undo the drain located at the bottom of the case and drain fluid. Above the drain port approx 6" there is another port. Remove that plug as well. Once the case is drained refill it by forcing the fluid into the bottom port. When it starts to come out of the top port it is full. Install drain plugs and you are done. You have to fill from the bottom to avoid any air pockets.
Yes. And don't forget to have them lube the Johnson rod.
It is a 2 stroke so it is in the gas and the lower unit has gear lube in it which can be checked by removing the upper plug on the side of the unit.
There are two fill/drain plugs located on the right hand site of the lower case. Remove them and drain the lubricant. Once emptied force the new lube into the case using the lower port. When it starts to come out the top it is full and you can reinstall the drain plugs. Always fill from the bottom port or air pockets will get trapped in the case.
Jiffy Lube has a $10 off coupon online, but I think you may be better off going with Firestone or Merchant's Tire. If you go to their sites' you will see you can get an oil change coupon there for $19.99 which should be lower than Jiffy Lube with the coupon.
If your engine has electric shift, a special gear lube is required. If it is a mechanical shift, ordinary hypoid 90 will work. Seems the special lube was called premium blend, but I could be wrong about the name. I would give a quick call to a Johnson dealer to verify availability of the special lube if needed.
Mercury® Marine High-Performance Gear Lube from Basspro
Yes
Although Jiffy Lube charges a variety of prices around the country, the average for an oil change there is $30-$40. However, they use coupons a great deal, so most people actually pay $25-$35 for their oil change from Jiffy Lube.
Change upper and lower ball joints the factory ball joints have no fitting for lube. The aftermarket one do
You don't put motor oil in a lower unit. Get a few tubes of lower unitgear lube from a marine supply dealer and a device to squirt it in. Remove the screws at the top and the bottom. Drain the old lube out. squeeze the new lube in from the bottom till it comes out the top, then re install the screws. Do this at the end of every boating season.
Stay away from ez-lube, quick-lube, or any other such chain lube shop. Have your oil changed at a trusted dealership or an independent mechanics shop and expect to pay around $30.
Jiffy Lube offers oil change services, filter replacements, and belt replacements to name a few. Also Jiffy Lube can do inspections for additional problems.