88 marathon

todman

got my 88 marathon running it backfires when you let off the gas
also when you shut off engine smokes for a little while any suggestions guys

BGW

__________________
This advertising will not be shown in this way to registered members.
Register your free account today and become a member on Buggies Gone Wild Golf Cart Forum

cart around

You need a spring from an ink pen on the throttle cable. You should hear your pedal micro switch click before the throttle opens.

Attached Images

	closed throttle.jpg (208.0 KB, 0 views)
	open throttle.jpg (263.3 KB, 0 views)

todman

I adjusted the throttle cable it runs much better but backfires
when you let off gas and get back on it. has new carberator, this was sitting for a few years when I found it but it started right up with new carb.and fuel and some wiring repairs from the squirls


sss

i

BrewCityMusic

your throttle isn't closing all the way when You let off the gas - what happens, is You let off the pedal and the microswitch kills power to the spark plug, but the open throttle allows fuel to be sucked into the engine. When You hit the pedal again, WHAM that fuel ignites, giving You the backfire. Common issue with these old 2-strokes, as mentioned you need to tweak your adjustment a bit more. The goal is to have the cable set so that you hear the click of the microswitch under the pedal *before* the cable starts to open the carb. The spring is there to help the carb arm close all the way, because even a *little* bit of opening prior to ignition, and You're going to get that backfire.