RMYELLOW01
Member
- Mar 26, 2005
- 7
- 0
RMYELLOW01 said:the oiston did get cooked it's scratched up bad but were the bearings wnt bad was not at the top of the rod but on the bottom where the rod connects to the crank. i was using golden spectro with a mixture of 24:1. this is what i was told by the dealer. the dealer told me to mix a 12 oz bottle with 5 gallons of gas.
Gazza2005au said:24:1 is to much oil being ran through your motor it will make the motor run rich and it will run hotter than normal this could be the possable cause for the melted piston also known problems with melted piston are a big gush of air and lacking fuel in the top end will melt the piston this is how i fryed my piston on my jetski it could also be a blocked carby
your bottom end bearings might have been ok but have some melted piston stopping them from moving (you hope this is the only problem) from what u have told us it'll need a new main ball,rod,top end
when a piston melts your probably ok with the sleve but it'll need a bore and hone to clean the rubbish off the sides if u want to find the cause of this pill the carby down if u find any fuel in the lines or carby pour it into a clear cup or bottle even the fuel thats in the tank once its in a clear bottle or cup take a very close look you are looking for clear jelly looking liquid ifu find some i gurantee this is the problem if not check the jets something blocked your fuel causing this problem
(if the guy u bought the bike from told u to run the bike @ 24:1 this is only for the running in process stick to 32:1 after run in)
yes you can! and probebly will ask any good motor cycle mechanic the motor will run hotter 25:1 is the lowest u can take a two storke motor (whipper snipper,pocket bikes etc..) and it has been proven that racing two stroke motocross bikes dont run properly @ 25:1 they cough and splatter and plug will foul in no time the only time a racing two stroke mx bike should be ran at 25:1-30:1 would be running in a new motorYou will not hurt a 2-stroke engine by mixing your fuel with too much oil
Gazza2005au said:yes you can! and probebly will ask any good motor cycle mechanic the motor will run hotter 25:1 is the lowest u can take a two storke motor (whipper snipper,pocket bikes etc..) and it has been proven that racing two stroke motocross bikes dont run properly @ 25:1 they cough and splatter and plug will foul in no time the only time a racing two stroke mx bike should be ran at 25:1-30:1 would be running in a new motor
ellandoh said:a bottle of golden spectro is what i use for my 250 it is exactly 42:1 with 4 gallons gas. i dont know the ounces in the bottle but the label explains it to be mixed w 5 gallons for regular use 4 gallons for hard duty
i like it, i did my top end this winter and i tell ya it had 100 hours at least of trails and 10 hours racing mx on a sandy track my top end was amazingly fresh i didnt even need to do it but did anyway and i didnt even need to clean the pv's. im puttin this stuff in my weedwacker snowblower and any other 2stroke i can think ofBullwinkle58 said:Yeah, I don't know how you're supposed to determine what "technical," "normal," or "extreme" conditions are. I ran the same stuff for years at 50:1 until I learned better. I never had an engine failure of any kind at that ratio though. I still use the same oil, but like you, at 42:1.
yzzz said:was there much/any carbon on the piston skirt?
or is that black stuff not called carbon?
how about the hed?
A lower oil ratio means for the same volume of fule/oil mixture you will have more oil and less gas which will give you a leaner burn. You will have more oil (good) but with a lean burn it will get hot (bad).Micahdawg said:OMG....some of you need to get some facts straight.
FIRST---- a lower premix ratio like 24:1 as opposed to 32:1 adds MORE OIL to your gas. This will provide MORE lubrication to the internals. It will also add MORE fuel to your air/fuel ratio making your bike run RICHER. ...
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?
We use cookies and similar technologies for the following purposes:
Do you accept cookies and these technologies?