Oil ratio for my Swedish made jonsered chain saw model 625=2

Fuel mixture ratio

Oil Mix Ratio:
Starting in the early to mid 90s Dolmar, Echo, efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl and Tanaka all started recommending 50:1

• 1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil or
• 4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.

McCulloch, Poulan & Wen recommend 40:1

• 1 gallon of premium fuel to 3.2 ounces of quality 2-cycle oil or
• 4 liters of premium fuel to 100 milliliters of quality 2-cycle oil.

According to http://www.acresinternet.com/cscc.nsf/ed1d619968136da688256af40002b8f7/6bfe5f55ef68c8d188256b69007ea725?OpenDocument , the Jonsered 451E chainsaw uses a 25:1 fuel oil ratio with 2-cycle chain saw mix oil.

I hope this helps.

Cindy Wells

needs compression of at least 130 psi.replace rings,or barrel,or get new saw

Dolmar, Echo, Efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl & Tanaka; all recommend 50:1 and have for a number of years.
• 1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil.
• 4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.

Oil Mix Ratio:

Starting in the early to mid 90s Dolmar, Echo, efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl and Tanaka all started recommending 50:1

• 1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil or
• 4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.

McCulloch, Poulan & Wen recommend 40:1

• 1 gallon of premium fuel to 3.2 ounces of quality 2-cycle oil or
• 4 liters of premium fuel to 100 milliliters of quality 2-cycle oil.

Chinese chainsaws recommend 25:1.

Oil Mix Ratio:
The following ratios have been recommended for the last 10-15 years.
Dolmar, Echo, Efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Spear & Jackson, Stihl & Tanaka; all recommend 50:1.
• 1 gallon of premium fuel to 2.6 ounces of quality 2-cycle oil.
• 4 liters of premium fuel to 80 milliliters of quality 2-cycle oil.
McCulloch, Poulan & Wen; recommend 40:1.
• 1 gallon of premium fuel to 3.2 ounces of quality 2-cycle oil.
• 4 liters of premium fuel to 100 milliliters of quality 2-cycle oil.
Chinese chainsaws recommend 25:1.

If you have more questions or need additional help please reply below and I will get back to you. HTH & Good Luck.
Lou
Thank You for using FixYa.

Oil Mix Ratio:
Dolmar, Echo, Efco, Homelite, Husqvarna, Jonsered, Makita, Oleo-Mac, Red Max, Ryobi, Shindaiwa, Solo, Stihl & Tanaka; all recommend 50:1.
McCulloch & Poulan; recommend 40:1.
Chinese chainsaws recommend 25:1.

If you have more questions or need additional help please reply below and I will get back to you. Good Luck. HTH
Lou
Thank You for using FixYa.

is it a high idle? most chainsaw's chain continues to turn with a high idle.

50:1 ratio....Jonsered smokeless is what I would recommend.Ask 5 people what oil to use and you will get 4 different answers.

50:1 is the mixture for the Jonsered 535. I bought mine new around 1991 and it's been a great saw.