i have a 1998 cbr600 after i ride for about 8-12 mile when its hot out side and i live in las vegas and were having 100-110f days so i mean hot my bike will shut down in the morning i made the same ride no problem but when i was riding home from work in the heat it will start sputtering and shut down and it take a few min before i can restart with full choke im thinking the fuel pump is getting hot and shutting downi bench tested it and its flowing goof though any suggestions would be greatly appreciated

 

Ummmm. . .I suggest you replace your fuel pump that you just said is flowing goofy. Let us know how that goes.

 

hahaha

-Lee

 

jets may have gotten clogged? check your plugs and ignition system too..

 

i meant to wright flowing good

 

i checked the plugs they look good if any other suggestions plz let me know

 

Heres an idea. This quote is from motorhead, his bike would run fine until it warmed up good. https://cbrforum.com/forum/cbr-600f3-17/bike-looses-power-speedo-96305/

 

I know that thread, not sure if it really applies.

But, if we're gonna go down the "warming up" road, where's your temp guage hang out at? You could have a blown gasket that's only opening up in extreme temps.

Also, the regulator/rectifier on your model bike has a tendancy to overheat (and melt). This could cause weird voltages to crop up in hot situations. Your big problem with all of this is you're going to have to get the bike hot enough so the problem will occur, then sit out in the desert sun and troubleshoot. I'm in Vegas every other July; I know it suuuuuuuucks.

 

That almost makes sense, but...... since heat is a form of resistance all into itself, it almost seems like a normal result. I do agree however if you test something and find out of spec results, the part should be replaced, or rebuilt to within manufacturer specs.

plainly put,

if your fuel system checks out, hot and cold,

your getting air into the engine, hot and cold,

and your ignition system is functioning within spec hot and cold.

check your charging system as well, if it checks out.....

it should be all good....

that being said, you have told us so far your fuel system checks out, and im pretty sure your getting air to the engine, so lets look at the ignition system, if your plugs are okay, make sure your coils are and your ignition box is okay, if that is all okay, you've missed something with your fuel, aswell, clean and adjust the carbs to factory specs.

-Lee (Honda Tech)

 

did a gravity feed about a 1-2 weeks ago and now no more problems the fuel pump passed a bench test but i geuss when it warmed up it shut down