dt 115 cough and sputters

kawi1100

Cadet
Joined
Sep 20, 2012
Messages
8
Mid 80s , cleaned entire fuel and oil system with carbs, holes are 110, 118, 120, 120, spark in all 4, could just the gas be doing all this rough mid and cannot rev without it cough/die to idle when throttle down to save it
 

kawi1100

Cadet
Joined
Sep 20, 2012
Messages
8
Re: dt 115 cough and sputters

Mid 80s , cleaned entire fuel and oil system with carbs, holes are 110, 118, 120, 120, spark in all 4, could just the gas be doing all this rough mid and cannot rev without it cough/die to idle when throttle down to save it


update, top two burning even, bottom two wet with fuel, could the differance in comp. need to compensate for sync on carb pull of fuel in order to run at higher rpms
 

stylesabu

Master Chief Petty Officer
Joined
Aug 2, 2009
Messages
849
Re: dt 115 cough and sputters

compression looks ok. sounds like weak spark.how far does spark jump? compare all 4
 

kawi1100

Cadet
Joined
Sep 20, 2012
Messages
8
Re: dt 115 cough and sputters

compression looks ok. sounds like weak spark.how far does spark jump? compare all 4

one man show to check spark is not easy, while on idle, pulled plug wire one at a time tossed if they were firing, went out last night and put a Multics meter on each dis connected coil and the readings in ohms was, 12.8, 13.2, 13.8, 6.7
 

kawi1100

Cadet
Joined
Sep 20, 2012
Messages
8
Re: dt 115 cough and sputters

Update.....ethenol free gas, ran at 3500,4000,4500, then at 5000, now its being fussy on the start up and idle, going to get a snail scale and see how even the carbs are sucking..
 
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