Question about Motorcycles
My engine shuts down after 2 min or so on Gsxr 750 1997. It starts normally but when it warms up, the motor shuts down. After that, I have to let It cool down a while to start It again.
Here's the things I did to fix it up to now
-Replace spark plugs
-Clean fuel filter in gas line from gas tank to carb
-Clean fuel nozzle + carb mvt good
Bad ignition coil. You can try to find the OHM specs and test it but that is what happens when you have a failing coil.
Posted on May 16, 2013
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Posted on Jan 02, 2017
SOURCE: cutting out at higher rpm
If the engine is the DOHC 16 valve engine inline 4, and has multiple carbs, then I have 2 suggestions for you, First thing I would take the carbs off, as a whole rail, and have them ultra-sonically cleaned at a shop, and the diaphragms checked in the tops. After that, you need to have the carbs synced while on the bike. I have a GSF600S and it was basically opposite your problem, it had a sputter in the low rpm range, and the carb syncing fixed it, and they honestly weren't that far off. The way those carbs feed fuel, if one is giving too much fuel then it will cause ur plugs to foul, or flood that cylinder, causing the issue. For the carb syncing I suggest building this tool, which I did for my bike.
It's a liquid column differential manometer, which very accurately and sensitively measures the vaccum on the different cylinders of the engine. The only other thing I can think of is your ECM, which controls the engine, and incorporates your rev limiter. These are pretty pricey, so I would do the steps above first.
Posted on Jun 19, 2009
SOURCE: stalling when starting
if after the two mins ur putting the choke back in and the bike dies, it could be that your needing to adjust the idle speed.
it might just be set on the lower limit so that when ur bike isnt fully warmed up it struggles.
Posted on Mar 16, 2009
SOURCE: 1989 tw200 yamaha won't start
G'day egdbcs . Ok.now lets see.You say good spark,so i'm presuming you are doing the old sight test.Try bending the arm on a know good sparkplug about 5-6mm,earth the plug and kick'er in the guts(crank it over)Be very carefull , high voltage danger.If there's still a good spark it's safe to say that there will also be a good spark under pressure in the combustion chamber,speaking of which you should also do a compression test,anything over 100psi should be ok. as i'm not to sure of the extent of the re-build,hopefully the valves were lapped and checked for straight and true and valve seals replaced,if you notice oil on the tip of the spark plug you could have a leaking valve seal or oil seal .Try putting a small amount of fuel directly into the combustion chamber ,tighten up the spark plug ,install the plug cap and.......Yeah ..You guessed it ..."kicker in the guts".If all the abouve are correct and true it should fire up.If it runs for 5-10 seconds then stops you've got some sort of fuel starvation problem , could be dirt in the carb,blocked idle jet ,or air passage or even the needle could have come off it's clip,believe me with an old bike like yours anything could be worn and loose inside that carby.The only other thing to consider is the timing.There may be a good spark but is it happening at the right time inside the engine???. I'll leave it all in your capable hands EGDBCS.Hope this helps to solving your worries. Chow for now......Tilleydog..
Posted on Jun 03, 2009
you could possibly have a bad fuel petcock they sometimes work there way out and cause fuel cut off to half the carburetors. The vent tube on tob of the tank can also become blocked. You can check it buy sucking on the tube and making sure you can **** air out of it. You may or may not have inline filters under the tank. If it's a 93 there is no fuel pump.
Posted on Sep 19, 2009
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