Runs good for a couple minutes after starting, then at idle a small miss begins to occur, it increases and it stalls. this sook was running perfectly at 55mph and it died, no fire,after a few minutes it started and missed and stumbled back to the shop. I cleaned all swiches and connectors, it ran better but off idle it still stalls. This is a 2009 DRZ 400SM that does not sit, fuel system clean and perfect. Anybody seen this problem?

SOURCE: suzuki drz 400sm

They should be around 33hp at the rear wheel. They should wheelie ok, though you will need to try a bit for decent ones.

SOURCE: 94 GSXR 750 DIED WHILE RIDING AND WILL CRANK BUT NOT START

There may not be an in-line fuel filter on the bike. Most bikes don't come with them. Yes, the fuel petcock has two screen filters on one pipe and they can get clogged up. Remove the tank then remove the petcock and clean it. The gas in the tank should be dumped into a clear plastic storage bin so that you can see if there is any water in the gas as well as rust and trash. Your bike is 15 years old and the inside of the tank may be rusty. If so, Google “ kreem fuel tank liner “ or go to

www.http://www.4secondsflat.com/Fuel_Tank_Sealer.html

This will end the rust problem. Go ahead an install an in-line fuel filter. There is a drain plug on the lower left side of each carb. Drain each carb into a clear container and look for water and trash. You may need to clean the carbs but hold off to see if the other stuff fixes the problem.

Go to the site below where you can see a parts diagram for your specific bike. You will select the actual brand, year, model, etc., once you go to the site. Part numbers and prices are also shown. You can order parts from this site. In the event no price is shown on a particular part, the part is not in stock.
www.babbittsonline.com/pages/parts/viewbybrandand/parts.aspx

Please top rate this answer. Thanks!

SOURCE: 1994 GSXR 750 wont start

the carbs are proberbly blocked, you might have rust in your tank that will keep blocking, put an inline fuel filter in and get carbs cleaner, you also got a flat battery, give i little revs until it starts then adjust the idle

SOURCE: drz 400 sm starts but i cant give it any gas or it dies

Can you slowly increase the revs? It sounds like an accelerator pump or debris in the carb.

SOURCE: 400 Eiger ATV, starts and runs fine, stalls the

If 2 stroke check crank seals, check plug cap for proper resistance,check for good fuel flow to carb.Spark should jump at least a 1/4" gap,NOT JUST the .030 or plug gap.