Backpack gas blower

It uses Hi test gasoline. NOT regular. You'll be having hard start problems if you use regular grade fuel. The engine is a 2 stroke which means you MUST mix oil into the gasoline before you put it in the blower gas tank. The proper 2 cycle oil can be had at any home improvement store or garden departments in places like Walmart. Do not use automotive oil or you will have a huge amount of smoke when you run the blower. You can get an owners manual by going on Homelite's website too.

If it is a 4 cycle blower, you do not mix oil with the fuel....It takes straight Gas. there is an oil cap to put engine oil in crankcase, this only usually takes 2,3,4 oz. of oil. Sounds like your Spark Plug probably fouled out from having oil mixed in your gas. I would recomend changing your Spark Plug and put some Fresh GAS only in the blower, dump the old stuff out !!! You should be on your way Blowing in No Time !

Most Ryobi products made in the past 5 years use a 50:1 fuel mix. Check the fuel cap to see if it is listed there. The older Ryobi product used a 32: 1 fuel mix ratio and it was usually listed on the sticker that shows you how to work the choke. If in doubt, go with the 32:1 ratio. The only thing it will cause is premature fouling of the spark plug. Too little oil in the mix will cause premature engine wear.

50:1 is 2.6 ounces of 2 cycle mix to each gallon (U.S.) of gasoline.
32:1 is 4.0 ounces of 2 cycle mix per gallon.

I recommend to use a 2 cycle mix that is specifically designed for lawn equipment and contains fuel stabilizer. The ones with stabilizer will usually be .5 ounces larger.

Good luck!

Welcome to the wonderful world of 2 cycle engines. Your McCullough blower uses a fuel mix to lubricate the piston. You MUST mix 3.2 ounces of 2 cycle mix to every gallon (U.S.) of gasoline.

If you run straight gasoline through your blower, you will RUIN the engine in seconds!

The fuel mix ratio is crucial to the lifespan of the engine. DO NOT GUESS.......MEASURE !!

I would also encourage you to purchase a 2 cycle mix that contains a fuel stabilizer. Gasoline starts to degrade in as little as 60 days, and a stabilizer will allow your fuel to stay fresh longer.

Good luck.

50:1 petrol oil mix 50 petrol 1 part oil

Yours is not a current model and I did not find a manual. The following is an excerpt from a 26cc MightyLite Blower/Vac UT08550/UT08951 "Operator's Manual":
This product is powered by a 2-cycle engine and requires pre-mixing gasoline and 2-cycle lubricant. Pre-mix unleaded gasoline and 2-cycle engine lubricant in a clean 1 gallon container approved for gasoline.
Recommended fuel: This engine is certified to operate on unleaded gasoline intended for automotive use.
Mix Homelite Premium Exact Mix lubricant with gasoline according to the instructions on the package. If Premium Exact Mix lubricant is not available, use a high quality synthetic 2-cycle engine lubricant, mixed at 2.6 oz. per gallon (US).
Do not use automotive lubricant or 2-cycle outboard lubricant.
NOTE: Premium Exact Mix fuel mix will stay fresh up to 30 days. DO NOT mix quantities larger than usable in a 30 day period.
PREMIUM EXACT MIX (50:1)
GasolineLubricant
1 gallon (US) 2.6 oz.
1 Liter 20 cc (20 ml)

If properly adjusted your blower will operate fine on 50:1 regardles of what the manual reads. HTH
Lou

Add 3.2 oz of 2 cycle oil to one gallon of gas (40:1 ratio)

3 to 1

50 to 1

The 4200 gas backpack leaf blower requires 50:1, 2 cycle oil mixed in the gasoline