Question about Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer

1 Answer

Ryobi 2800R 28CC Weed Wacker questions

I recently purchased a used Ryobi 2800R 28CC Weed Trimmer off Kijiji.

It started right up first try, but I have a few questions that I hope someone can answer for me.

Line housing is always spinning. Is this normal? I would think it would be safer if it only spun & trimmed when I pulled the throttle?

Smokes alot? - Normal?

Loud - Anyway to make it a bit more quiet?

Thanks in advance!

Posted by on


1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 124 Answers

Most likely it does not have a clutch which is common on cheap curved shaft trommers. The only cause for smoke in a 2 cycle engine is the oil you put in the gas.

There are two major differences in 2-cycle engines. There are water cooled and there
are air cooled engines and the oils are entirely different. Water cooled (outboard) engines run at much lower temperatures and at much lower RPM's. It is necessary for outboard oils to burn during the combustion cycle. In this situation the oil turns to smoke so that the oil is not deposited in or on the water. Air cooled engines run at a much higher temperature and must not be used with outboard oils. In an air cooled engine the oil should leave the muffler in liquid form. If the oil turns to smoke it is not able to lubricate the engine and a very undesirable carbon deposit is left behind leading to engine failure or stuck piston rings.

Since a top quality mixing oil will cost $12 or more for a six pack (that comes out to well over $100 a gallon of oil) there is little wonder that so many companies want a piece of that pie. Cheap oils no bargain even if it is free. If the oil says it is for outboards, lawn mowers, string trimmers, and chain saws, they are telling you that they know nothing about 2 cycle engines and only want to take your money.You should choose an oil whose brand is that of an engine manufacturer. Obviously these companies are not in the oil business but they want to make sure that they do not cause warranty claims from an inferior oil. The life of you engine is dependent on choosing a good grade of oil. You should pick an oil that you trust and that you can purchase on a consistent basis. Unlike gasoline, oil does not deteriorate with age. It is better to buy enough to last you a year or two than it is to change brands every time you run out.

The l0ud muffler probably can not be helped unless the muffler is rotted and needs replacing.

Posted on Sep 21, 2009


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Brand new weedwacker model#316-711370 first time started right up ran for awhile then just stopped,wont start at all now

#34 craftsman weed wacker manual
100+ items - pdf download about #34 craftsman weed wacker manual ... Books Title
File Code
Craftsman Weedwacker Manual from Sears com
Free Craftsman Trimmer User Manuals ManualsOnline com

Aug 04, 2015 | Cars & Trucks

1 Answer

Why is my ryobi 18 volt trimmer smoking? I have had this 2.5 years and using it on lawn edges only.

The motor is failing. Most likely the brushes have failed, but this is all sealed and they cannot be replaced alone.

Jun 10, 2014 | Ryobi 18 Volt 18v Cordless String Trimmer...

1 Answer

I have a RYOBI E530 Touch Start Push Button weed wacker. Model RY29550. I took it in for repair since the cord wouldn't recoil back in and was told to just use the batter/electric start. I do not...

Most Ryobi manuals are available on their site: . The direct link to the RY29550 manual is: .

Are you sure of the model number? The RY29550 lists electric start with 12V battery for all models, no pull cord. It takes battery pack 130269012 and charger 140295003. This site has parts for the RY29550: .

I hope this helps.

Cindy Wells

Jul 10, 2011 | Garden

1 Answer

Have a Ryobi weed wacker 725r 31cc click link Trimmer Plus. No more line-can't figure out how to remove bottom to replace the line or what kind of line to replace with. Deceased husband lost directions...

i also have a ryobi weed wacker. if it is the same. you don"t have to remove the button. line up the 2 arrows one on wheel with bumpy edges and one by the button. you should see 2 holes feed a 2-3 foot piece of line into the hole the line comes out of for cutting and it should come out of a curved holw on the bottom by the button .tuck the end into a small round hole . pull line tight (tug on the section that you cut with). wind the string by turn the ring around the button. til desired length. if this doesn't work. google you model # and look for a manual (manual for ryobi weed wacker model # ------------.)

Jun 09, 2010 | Garden

1 Answer

The string head does not spin as fast as the

it sounds like the centrifugal clutch is slipping. take it to several shops and get some quotes. Most times you'll find that fixing a Ryobi is more expensive than buying a bnew one.

Sep 02, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

1 Answer

Replace pull cord on ryobi model cs30 weed wacker

Good fix, mrfixit-jerr! Also, if you remove the rear cover (4 screws) you can stabilize the crankshaft by inserting a screwdriver between the lobe of the shaft and the counterweight.

Apr 03, 2009 | Ryobi 30 Cubic Centimeter Curved Shaft Gas...

Not finding what you are looking for?
Ryobi 30 Cubic Centimeter Curved Shaft Gas Trimmer Logo

1,056 people viewed this question

Ask a Question

Usually answered in minutes!

Top Ryobi Garden Experts

Jim Parker
Jim Parker

Level 3 Expert

1041 Answers

Gene Tuck

Level 2 Expert

248 Answers


Level 2 Expert

203 Answers

Are you a Ryobi Garden Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides