JD Gurus:
I am using a '76 Cyclone motor with stock pipe in my 440cc fan vintage oval sled for this season. Can anyone give me suggestions for what your experiences have taught you on optimizing the performance in this monster? Thanks in advance.
E-mail replies would be best.
khoisington@bigextreme.com
'76 Cyclone motor
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harleysportster
- Posts: 2965
- Joined: Thu Jul 14, 2005 12:00 am
- Real Name: Pat Scott
- Location: Southeast Pa.
'76 Cyclone motor
You could install the duel carb setup from a 440 liquifire. It is a direct bolt-on installation which includes the intake manifold, carbs, and throttle and choke cables and the air box.
'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
'76 Cyclone motor
Like harley said the dual carb setup seems to be a winner.
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Deleted User
'76 Cyclone motor
Thanks tons for the idea on the twin carbs. Which model year Liquifires would I be able to interchange? Of course, the next question will be... anyone got one and how much?
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harleysportster
- Posts: 2965
- Joined: Thu Jul 14, 2005 12:00 am
- Real Name: Pat Scott
- Location: Southeast Pa.
'76 Cyclone motor
You can interchange model years '76 thru '78. Watch ebay, I have seen them often. You could check CentralSnowmobile,
http://www.centralsnowmobile.com/Central/homepage.htm
Al's Snowmobile,
http://www.alssnowmobile.com/
http://www.centralsnowmobile.com/Central/homepage.htm
Al's Snowmobile,
http://www.alssnowmobile.com/
'76 440 cyclone
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
'76 440 liquifire
'78 440 Cyclone
'75 JDX8 (sold to a member here)
'78 Liquifire(CrossCountry Clone)
'80 Liquifire(sold)
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JoeRainville
- Posts: 4355
- Joined: Tue Aug 02, 2005 12:00 am
- Real Name: "John Deere Joe"
- Location: Fort Worth, Texas
- Contact:
'76 Cyclone motor
Hi Guys,
The dual carb set up is a good improvement, my 78 Cyclone 440 is done up like that. Just watch your jetting. Also, as for stock parts, the 76-78 LF muffler is larger diameter, and tuned for around 5-7 hp on the top end over the stock Cyclone unit. The problem is making it fit with the funny shaped Cyclone exhaust manifold.
You could either modify the outlet of the Cyclone manifold, or modify the flange of the LF part. They do not directly interchange due to the Cyclone using 2 bolt flanges on a steep angle vs the LF 3 bolt flanges that are tipped up somewhat.
Good luck with your machine,
-Joe Rainville
"Tech-Ed"
The dual carb set up is a good improvement, my 78 Cyclone 440 is done up like that. Just watch your jetting. Also, as for stock parts, the 76-78 LF muffler is larger diameter, and tuned for around 5-7 hp on the top end over the stock Cyclone unit. The problem is making it fit with the funny shaped Cyclone exhaust manifold.
You could either modify the outlet of the Cyclone manifold, or modify the flange of the LF part. They do not directly interchange due to the Cyclone using 2 bolt flanges on a steep angle vs the LF 3 bolt flanges that are tipped up somewhat.
Good luck with your machine,
-Joe Rainville
"Tech-Ed"
Honorary Tech Editor
Chuck Norris doesn't get frost bite. He bites the frost.
Chuck Norris doesn't get frost bite. He bites the frost.
'76 Cyclone motor
Swill310 I have the intake setup with reeds etc and 2 mismatched carb mounts but no carbs. Id take $20 for it and probly $5 to ship in the lower 48. Email me at jesse_jameswannabe@yahoo.com if intrested.
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Deleted User
'76 Cyclone motor
Ok... I'm starting to piece things together. Thanks for the suggestions.
Next question: What is the recommended Mikuni carb size for the twin set up?
Next question: What is the recommended Mikuni carb size for the twin set up?