200 h.p won't idle

[drummer0901]

I have been fighting now for 5 weeks to get my 82 200hp cool, not worrying about anything else. Now that the engine runs cool, I can tackle some of the other issues. When I am at home running on the tank, the engine idles smooth and about 750 RPM. When I go to the lake, the same, as soon as I drop it in gear it want's to stall, fires right back up, I can hold the throttle a little and idles fine. Could this be a simple idle adjustment or should I look somewhere else?

 

[82RAYSONCRAFT]

Re: 200 h.p won't idle

Drummer,<br /><br />I've got an 81 225 that I had issues with also and seams to be better now after many hours of troubleshooting.<br />Yes it could be a simple adjustment of the idle stop screw. <br />I would check idle in gear. 750rpm in nuteral may be a little low. On the water I idle at about750-850rpm IN GEAR. <br />Not sure of your motor but all of em had either an idle stablizer and/or high speed timing advance control module thats mounted on top of the carb box in front of the flywheel. I removed mine and set WOT timing at 24 degrees.<br />Your carbs do not have idle screw adjustment, but rather idle vent jets.<br />Have you checked compression?<br />There are a lot of factors to rule out but start with the simple stuff first.<br /><br />From past experience and what I've been told these motors don't like to idle but sure do like to go!<br /><br />Just my .02<br /><br />Good Luck!

 

[drummer0901]

Re: 200 h.p won't idle

Compression was as low as 124 and high as 130, I just changed all plugs and verified that I have have spark on all cylinders. I would do the link and sync listed in the manual but I do not have a dial indicator. It looks to me that it costs more to buy that tool than it would take for me to pay a mechanic to perform the task