Hard start/ ruff idle when cold ????? 3.0 merc - HCS Snowmobile Forums

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Old 10-03-2009, 05:15 PM   #1 (permalink)
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Posts: 6,606
Current Sled(s): 14 600-RR, 10 SnoPro500, 07 F6LXR (wife's)
Previous Sled(s): too many Cats.......way too many ...
Location: Lake George, NY
Favorite Riding Area: VT,Tug Hill, Moosehead/Rangley
13-14 Mileage: 1025 ++
12-13 Mileage: 1800
11-12 Mileage: ice skated
10-11 Mileage: 1440
Age: 46
Riding Since: 1975
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Just bought a 89 Wellcraft with the 3.0 Merc in it. When cold, it starts very, very hard and runs quite ruff. Have to have it about 1/2 throttle to keep it from stalling. Carb looks new; previous owner said he just had it in for service for the issue. Shop had drained & flushed the tank, put new remote fuel filter and all new lines --- suspecting Ethanol issues. He didn't say anything about the carb, but it looks too new to have not been replaced (when compared to the rest of the engine components). Once warmed up, it will start, idle & run fine. Any ideas and/or suggestions ? First boat in a long long time......just don't have time to use one. But we have gotten into scuba diving pretty heavy this year and this will get us out to new locations---- just don't want to get stuck there !!!

Thanks in advance for the help!
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Old 10-06-2009, 01:45 PM   #2 (permalink)
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Posts: 2,981
Current Sled(s): '13 Pro-R 800 Switch, '10 TNT 600
Previous Sled(s): '04 600 SDI, '05 F6 Retro
Location: Fairfield, CT
Favorite Riding Area: VT & Lake George, NY
13-14 Mileage: 1000
12-13 Mileage: 750
11-12 Mileage: 795
10-11 Mileage: 1420
Age: 36
Riding Since: 1981
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Welcome back to the rewarding and frustrating boating world!

I am dropping mine off up there this weekend and pulling the sleds home to my dealer for pre-season work.

See ya on the trails this winter!
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Old 10-06-2009, 10:40 PM   #3 (permalink)
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Join Date: Feb 2003
Posts: 6,606
Current Sled(s): 14 600-RR, 10 SnoPro500, 07 F6LXR (wife's)
Previous Sled(s): too many Cats.......way too many ...
Location: Lake George, NY
Favorite Riding Area: VT,Tug Hill, Moosehead/Rangley
13-14 Mileage: 1025 ++
12-13 Mileage: 1800
11-12 Mileage: ice skated
10-11 Mileage: 1440
Age: 46
Riding Since: 1975
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Quote:
Welcome back to the rewarding and frustrating boating world!

I am dropping mine off up there this weekend and pulling the sleds home to my dealer for pre-season work.

See ya on the trails this winter![/b]
Hey Pete ! Good summer ? Sold my 600 Pro.......waiting for the 500. But may be going 2010 600 Pro instead.....never know until the snow flies what I'll be on this yr.....at least I'm keeping my F8.......well, maybe.......................
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1999 Chaparral Sunesta 233 LE
Scuba year 'round
Australia and South Pacific Islands

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Old 10-08-2009, 10:03 AM   #4 (permalink)
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Peter King 28's Avatar
 
Join Date: Dec 2005
Posts: 2,981
Current Sled(s): '13 Pro-R 800 Switch, '10 TNT 600
Previous Sled(s): '04 600 SDI, '05 F6 Retro
Location: Fairfield, CT
Favorite Riding Area: VT & Lake George, NY
13-14 Mileage: 1000
12-13 Mileage: 750
11-12 Mileage: 795
10-11 Mileage: 1420
Age: 36
Riding Since: 1981
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Quote:
Hey Pete ! Good summer ? Sold my 600 Pro.......waiting for the 500. But may be going 2010 600 Pro instead.....never know until the snow flies what I'll be on this yr.....at least I'm keeping my F8.......well, maybe.......................[/b]
Busy summer...got married

I am stuck on the retro for another year. The wedding drained me and now we are trying to sell our house and move into something bigger. That 500 with the D&D 720 is going to be awesome I hear. Maybe in 2011 they will put the 800 HO in the new sno pro chassis...that would have my name written all over it.
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Old 10-11-2009, 05:13 PM   #5 (permalink)
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Join Date: Feb 2003
Posts: 6,606
Current Sled(s): 14 600-RR, 10 SnoPro500, 07 F6LXR (wife's)
Previous Sled(s): too many Cats.......way too many ...
Location: Lake George, NY
Favorite Riding Area: VT,Tug Hill, Moosehead/Rangley
13-14 Mileage: 1025 ++
12-13 Mileage: 1800
11-12 Mileage: ice skated
10-11 Mileage: 1440
Age: 46
Riding Since: 1975
Default

Quote:
Busy summer...got married

I am stuck on the retro for another year. The wedding drained me and now we are trying to sell our house and move into something bigger. That 500 with the D&D 720 is going to be awesome I hear. Maybe in 2011 they will put the 800 HO in the new sno pro chassis...that would have my name written all over it.[/b]
Pete....PM sent


Boat seems better after dealing with the ethanol/ water issue with the stale gas that was in it from WHO KNOWS WHEN !!!!
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1999 Chaparral Sunesta 233 LE
Scuba year 'round
Australia and South Pacific Islands

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