gas in engine oil

[chris_od]

my friend has a katana 600 carborated. about a month ago he was riding it and it just stalled going down the road and wouldnt start up. he hasnt rode it or started it sense then. but yesterday he decided to change the oil and it was full of gas. any ideas as to how it got in there? im thinking it must be a seal somewhere?

[HemiKat]

It sounds like the float height is off in the carbs allowing gas to flow into the engine more than is needed. Check the operation of the petcock and check the float height on the carbs, its more than likely an issue with both.

[biggrobb762]

i have the same problem, i realized the petcock was leaking but i still wanna check the float height, would this cause the engine to run like crap at idle

[HemiKat]

i have the same problem, i realized the petcock was leaking but i still wanna check the float height, would this cause the engine to run like crap at idle

It could, it will more than likely cause a rich condition. Good idea to check your plugs also, they may be fouled.

[biggrobb762]

ok thanks

[willbdish]

my friend has a katana 600 carborated. about a month ago he was riding it and it just stalled going down the road and wouldnt start up. he hasnt rode it or started it sense then. but yesterday he decided to change the oil and it was full of gas. any ideas as to how it got in there? im thinking it must be a seal somewhere?

Tell your "friend" it's a good idea to change the oil two times when it gets gas in it, just a good warm up on the frist oil change.

[chris_od]

okay he will and we will have to look into the carbs they need to be taken apart cleaned and synced anyway. probably a job for the professionals.

[hardlydangerous]

replace the float valves and also test the petcock operation on the tank
the post carbs dont have overflows so if the float vales or floats are not set correct or leaking it will cause the engine to run too rich and could kill the plugs.
Run real cheap oil for your first oil change, run it through with the old filter on there, then change it to good oil and new filter and your all set, but make sure you get the carb issues sorted out first

[newkatbie]

okay he will and we will have to look into the carbs they need to be taken apart cleaned and synced anyway. probably a job for the professionals.

Do the cleaning yourself. You will save $$$. It is easy. Just take all four out at once and take it apart and soak it in carb cleaner. Don't soak the rubber parts. Look at the carb 101 sticky. Take to get sync. im sure carb cleaning isn't cheap and you will do it again sometime. Better to learn now.

[04katrider]

you can also get gas in the oil if your leave it on prime while its sitting

[mstngsrule68]

you can also get gas in the oil if your leave it on prime while its sitting

but wouldn't correct float high stop it as soon as the bowl's filled?

[kevin2502000]

but wouldn't correct float high stop it as soon as the bowl's filled?

A correct float height and a correctly functioning needle valve won't leak. A properly functioning carburetor can be left with prime on and it won't leak.

[scottynoface]

Float valves. Check the plugs to narrow down to which cylinder.

[mstngsrule68]

A correct float height and a correctly functioning needle valve won't leak. A properly functioning carburetor can be left with prime on and it won't leak.

i thought so.