How to remove burners on a Coleman Grill - Coleman Roadtrip Grill LXE 9949-750

The low jet probably has a partially blocked jet. It isn't unusual for paraffin or petrol fuelled burners to become blocked and the jets have to be cleaned regularly with a jet cleaner or pricker - a thin hard steel wire clamped in a pressed steel holder. Modern or premium products often have an internal jet cleaning mechanism built in.

It is rare for propane or butane powered appliances to suffer blocked jets but it does happen sometimes. If the jet is accessible it can usually be cleaned with a pricker of the right size but if it isn't accessible or the pricker provides only a temporary cure, the appliance will need partially dismantling and the jet (or nipple) removed for cleaning.

Yellow flame is blocked burner clean out with Air line ,or wire brush ,prick out burner holes .

You could try Coleman, they might be able to supply one.

The Coleman Company, Inc.
3600 North Hydraulic
Wichita, KS 67219
1-800-835-3278
TDD:316-832-8707

It is called a Match Extension. It lets you use an ordinary book match to light the burner by placing the lit match in the wire loop and holding it near ththe burner

The only place the line could be blocked is either in the burner, the venturi valve on the burner and the burner orifice. In any case, the burner must be removed to insect it thoroughly, as well as clean it.

Hope this helped you to trouble shoot and solve the problem.

might have water in burner or a melted o-ring from fire

The Coleman website has a pretty excellent list of owners manuals. (Here's the link for the 9921A700)
I believe that you unscrew the burner assembly on the right, which will then let you remove the cooktop to clean inside and re-assemble.
This procedure is not listed on the Coleman website or in the owners manual, however it appears to be fairly straightforward. I'd recommend using some teflon tape on the threads when screwing the burner assembly back on.

Try cleaning the carbon out of the burners.

Try the Coleman web site, you chould be able to get one there.

The issue is with the valve that is connected to the knob. it is poorly designed. To fix it take off the lid assembly and remove the front black cover that covers the knobs. remove the almost diamond shaped metal piece that the knob shaft runs through. put on your gas tank and adjust the valve to a position where no gas comes through.. might be lucky or you will have to replace that valve.