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mmmPUDDIN

1988 suzuki quadrunner 250cc 2x4 (LT-F250) not starting

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Posted (edited)

I've had this machine for 2ish years, has ran great up until winter. Sometime during then, I managed to break the exhaust right before the muffler. The summer before it had a hard time idling, but we fixed it by cleaning the carb, and messing with idle. Near the end of last year, the only way for it to fire was the have full choke, and full throttle, and the engine bogged down and you had to keep on throttle for 25mins. Over winter, the throttle had dislocated, and I got it back in place. We got it running, and all was good. Spring came along, and now it doesn't start at all. A fluid is coming out of the exhaust, and I'm told it could be water from over winter. I checked the airbox, and the air filter isn't for this quad, it also is barely sucking air. There appears to be little to no compression, based on this. I'm pretty sure the engine is flooded, as the spark plug produces a spark, but is oxidized. I don't know how the previous owner treated it, or when it's last oil change was. A bolt on the engine has either oil or gas seeping through it,abd was loose. I tightened it and it consisted. The engine is basically positioned in the rear, and it needs a good clean, I don't have a pressure washer, so I can get the built on dirt off. any recommendations on how to get the beast started again?

Edited by mmmPUDDIN

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Fluid from the exhaust could be gasoline, did you replace any parts in the carb? If not, buy a rebuild kit, they can be found on ebay for under $30. The float on the carb is probably leaking and flooding the engine. Check the engine oil too see if it is too full, if its too full it might have gas in it. You will need to replace the engine oil and filter if the oil is mixed with gas.

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On 5/5/2019 at 11:05 AM, Cj Winds said:

Fluid from the exhaust could be gasoline, did you replace any parts in the carb? If not, buy a rebuild kit, they can be found on ebay for under $30. The float on the carb is probably leaking and flooding the engine. Check the engine oil too see if it is too full, if its too full it might have gas in it. You will need to replace the engine oil and filter if the oil is mixed with gas.

I recently cleaned it, but didn't replace any parts. Again I don't know if the previous owner did, as I'm unfamiliar with this carb and engine. The oil doesn't look too high, but It could be mixed with gas, I will check 

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I had all the symptoms you have and adjusting the valves fixed mine. Oxidized plug sounds like water to me.

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