I have a honda pressure with a honda 160 motor.ran great yesterday but today will not stay running and very hard too pull almost pulled my arm off from back pressure.replaced plug checked oil also checked on off switch also gass lol.any ideas this shouldnt have this much back pressure when starting my right arm is 3 inchs longer than the left.please help thanx tim

SOURCE: Karcher 2400R

You have a poor signal to the spark plug usually caused by a rusty fly wheel found underneath the pullcord casing. clean it with releasing ajent such as wd 40. common when not in use for a while.

SOURCE: Katcher pressure washer w/ 5hp Honda Engine

pour a bottle of carburettor or fuel injector cleaner in the fuel tank, replace the spark plug and set the spark pluglug gap at 0.7mm. Replace the air filter element. Also change engine oil if necessary (mobil 10w30 synthetic.

SOURCE: honda pressure washer cuts out when lance trigger released.

You most likely need to set your valve clearances. If it is hard to pull over or the recoil snaps back after starting your valves need to be set for sure. This may not be the entire problem but it is a good start. Also change the spark plug, a bad plug will cause odd problems and is too cheap not to eliminate as a source. In addition check your fuel, pour a little out into a white container (I like spray paint can caps for this) and look at the color. If it is yellow to orange it is bad. You can pour it into you car, the car electronic sensors will compinsate for it quality but a small engine can't. Use a NGK BP6ES or BPR6ES plug.
You need:
Feeler gages
10mm open end wrench
14mm open end wrench
1 long shaft screw driver or rod
1 spark plug socket and ratchet

Remove the spark plug and the valve cover. Pull the recoil over slowly until the intake valve opens (intake is closes to the carb and it will go down when it opens). Now put your long screwdrive down the spark plug hole. Slow pull the engine over until the screwdriver handle is at it highest point, this is top dead center. It may take a few attempts. Now check your valve clearance between the rockers and the top of the valve. The intake should be .006 and the exhaust .008, both can be +/- .001. To adjust: hold the large nut with the 14mm then loosen the small one with the 10mm. Lefty loosey. Now turn your large nut until you get the correct setting and then tighten the small one the lock it in. It may take a few attempts and alway reverify your setting after you lock it down. Once done, find top dead center again and reverify. Now your valves are set.

SOURCE: Karcher pressure washer with Honda GC160 engine only runs on chok

You need to remove the carb bowl, then with a small flat screwdriver remove the jet. ( on the side, at the bottom of stem.) take a small wire or toothpick and clean the gunk out of the jet, reassemble and open fuel valve, start, and pat yourself on your back.

SOURCE: pull cord getting stuck

Pull starter rope wheel is Jamming against casing usually some lube n check for ware will fix it