What is happening to my rancher 455 when I press the throttle and it bogs down? It idles fine but cannot get to full acceleration so I can cut.

SOURCE: , No.455 Rancher, 20" Gas - Powered Chainsaw: What is the oil mixture ratio for the Rancher 455...

50: 1; You can download an OM here:
HusqvarnaUSA.com
http://www.husqvarna.com/us/homeowner/support/download-manuals/
Enter the 3 digit model number (no XPs, Es, just the numbers)
Serial number decode – useful when downloading IPLs and Manuals
06 1500198
06 = year produced – 2006 (single digit before 2000; please contact Husqvarna for single digit clarification http://www.husqvarna.com/us/homeowner/support/customer-support/)
15 = week produced – March
00198 = 198th unit Husky produced that week

Oil Mix Ratio:
The following ratios have been recommended for the last 10-15 years and is what Husky suggests for your saw..
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.

SOURCE: i have a husky 455 rancher.never had a problem

When this has happened to me, it turned out to be a hole or crack in the fuel line. At the higher revs, more fuel is needed. The added "suction" for the higher demand pulls air into the line and the unit does not have enough fuel to run. Check for that first and also the fuel filter inside the tank. The filter might be clogged as well.

Keep us posted,
Dan

Testimonial: "got some very usefull stuff off ur reply, i did'nt know u could cx the fuel filter. Turns out my prob was actually a bad batch of fuel, but your reply gave me many options if it happens again in future. thanks for you time."

SOURCE: i have a husqvarna 455 rancher that won't run at

Clean or replace the fuel filter. Check the fuel lines for decay or other damage. Check the muffler for plugging of the screen. Be sure to run with fresh fuel mix and to shake the container thoroughly each time just before filling the tank to prevent oil starvation. Hope this helps!

SOURCE: Husqvarna 455 rancher has no power at full

Check for plugged fuel filter, air cleaner, and muffler. Check the fuel lines for decay or other damage. Check the chain for proper oiling and not so tight that you can't turn it by hand. Hope this helps!

SOURCE: I have a 09 455

If gas is leaking from the carb, can you see if it is a damaged fuel line with a leak or coming from the carb itself. If it is the carb tighten the screws on the carb itself. If neither one is the problem you probably do need a carb kit installed. Hope this is helpful. Best regards and good luck.