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View Full Version : 87 LT230S sputtering up to 1/2 throttle!!??


WeTDrEaM
11-09-2006, 04:09 PM
Just purchased a 1987 Suzuki LT230S. Engine was not running when I got it. Cleaned carb and started machine. Runs great while in neutral and above 1/2 throttle. For some reason it sputters like the spark is cutting out from 0 to 1/2 throttle. Installed new plug, nothing same thing.

Any ideas would be appreciated.
4TraxRider
11-09-2006, 04:36 PM
Sounds like a jetting issue to me. Does it have an exhaust or any kind of airbox mods done to it?
WeTDrEaM
11-09-2006, 05:17 PM
The only thing aftermarket on it is a cobra slip on muffler...
NY06400EX
11-09-2006, 08:37 PM
Jetting settings most likely, sounds like you need to adjust it. Start with your fuel screw and see if it helps the situation at all.
WeTDrEaM
11-09-2006, 08:39 PM
The air screw does not affect it at all. Not sure where to go with this thing... killin me
NY06400EX
11-09-2006, 08:44 PM
To clarify, your problem area seems to be from 1/8 throttle to 3/4 throttle...this area is controlled by the needle in your carb. I would assume the clip needs to be adjusted to compensate for the slip on. Do a search on jetting and you will fully understand the concept.
WeTDrEaM
11-10-2006, 12:01 PM
I fully understand jeting completely. I've tried everything with the carb. No luck.
NY06400EX
11-10-2006, 02:06 PM
ok, I would check for a vacuum leak then.