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Yamaha FJ1200,
86-94 SPECIAL Pricing |
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Yamaha FJ1200,
86-94 SPECIAL Pricing |
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Carburetor Tuning Kits |
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CRB-Y08-1.0 $129.95 SPECIAL 97.46 |
Boosts power a bit at full throttle, improves throttle response - especially at low rpm and part throttle, smoothing power delivery. Engine runs a bit cooler and usually smoother. Comparison to dj kit: Much better driveability when properly tuned. |
CRB-Y08-1.1-ti $149.95 SPECIAL 112.46 |
Titanium needles, drop-in kit uses Stainless Steel allen screws instead of zinc plated screws as in the #1.0 kits, otherwise, the same dimensions and jets sizes as the #1.0 kit. Comparison to dj kit: Much better driveability when properly tuned. |
CRB-Y08-3.0 $129.95 (no filters) SPECIAL 97.46 |
Use if you remove the stock airbox and replace it with individual filters. Use with aftermarket exhaust, makes best maximum power. Comparison to dj kit: Much better driveability when properly tuned. |
oem # 84 Yam pn: 16H-14141-90-00 CRZ-EMU-100112k SPECIAL 96.00 |
Ok - The average 1200 has accumulated a large
number of miles - and by now, many of them have carbs on them that have
really funky super-rich low rpm running "feature". Sound like yours? (needle jet wear, all carbs - click here) That will allow too much fuel to rise up into the bore of the carb, decrease the engine's power and cause rich low rpm cruise and rich full throttle, low rpm running.... (Sound like yours?) These needle jets are NOT what Yamaha would sell as replacements - They are full patented new design that atomizes fuel to a finer degree - allowing a leaner burn w/o misfire and more power potential - along with 20th century improvements, like plating for longer life - A suggestion? Before you start trying to make your FJ run right or even attempt to properly jet, replace these parts!!! |
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Transmission Shift Improvement |
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SHFT-PRO-YAM-5 $99.95 (special order) SPECIAL 77.46 |
Now that you've replaced the 2nd gear, it's mate and it's shift fork - Install this kit to make 2nd gear stay alive for years. Oh - nicer shifting, too. Includes: Factory Pro Microbearing Detent Arm,
Heavy duty detent spring and gasket. Makes shifting more positive at
the expense of slightly stiffer shift lever action. The stronger detent
spring rotates the shift drum faster, so the gears are more likely to
engage under quick shift conditions. The Microbearing eliminates much
friction, allowing the shift drum to rotate quicker for fewer missed
shifts. Especially helpful in decreasing the 2nd gear and shift fork
wear that the FJ1100's, FJ1200's and other bikes with large, heavy transmission
gears are so well known for. |
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Ignition Components |
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 (sample pic only) RTR-YAM-6 88-94 $89.95
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Ignition Advance Rotor |
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Tools |
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 TL-float height gauge $59.95 SPECIAL 49.00 |
The only way to
accurately measure float heights. Works on nearly every carburetor. More information on how to set floats, resultant fuel level, it's effect on low rpm fuel delivery, pictures..... Float Height Page |
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Does NOT fit 86-87 models, RTR-YAM-6 $64.95 |
Ignition Advance Rotor |
Glad it all worked out, George. I think it's
best to teach how to solve the problem!
Thanks for the feedback!
Marc
Well, well, there's an FJ1200 page now!
Actually, the problem is twofold - the low-end
carburetion is too lean and the ignition timing curve is pretty aggressive at low
rpm.
Try adding the advance and see if that's enough. Adding the Carb Recal Kit and the
advance will cure the FJ's "twitchy throttle" when properly tuned.
BTW - The FJ1100 needs the carb kit before the advance - as the advance alone will
cause a light pinging at cruising speed when going up slight hills on the freeway.
Thanks for the question,
Marc
| Carb overflowing while sitting |
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Float Height Measuring "touching, but not compressing the float valve spring" |
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Needle Jet wear (sometimes called "worn emulsion tubes) |
Inspect your brass needle jets for wear when you
take out the needles. If the needle jets have oval wear pattern, they
will allow excess fuel to pass by the needle causing excess low speed
richness. The fuel will also consist of more, large drops, rather than small drops. Large drops of fuel tend to drop out of the airflow and not burn. Check out Tech Section for "Needle Jets, Mikuni, worn" Tech |
Go to
General Technical Support
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| LINKS | |||||||
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EFI and Carb Tuning - Most all FI and carb tuning by Wheelsmith Racing |
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The Harringtons
own
American
Flyers,
one of the most established flight training facilities in the USA. 8 locations 800-362-0808 |
 Flight Training - train with AMA race winner Todd Harrington. |
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Insurance ONLINE
QUOTE Clearinghouse Get ONLINE realtime quotes from multiple companies - One Stop MC, auto, home and more from insurance companies you know and trust. |
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The Rich Oliver
Mystery School will help you discover your hidden inner strength.
It will challenge you. It will teach you a new way of thinking, and a new way of riding. You can take your riding to an exciting new level! We use a variety of proven drills and training techniques. Practicing these techniques with our Yamaha dirt track trainers will enhance your abilities both on the track or the street. It doesn't matter what you ride or race, the Rich Oliver Mystery School improves everyone's skill level and mindset! |
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Make your next tour Unforgettable, Affordable and Exotic. Superbike Tours Thailand - See you there. Geoff@superbiketoursthailand.com |
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Factory Pro Fall Flying Special! Book a sightseeing flight
over the Wine Country or a Kamikaze aerobatic flight or a biplane flight
over Infineon Raceway, the Golden Gate Bridge and the San Francisco
Bay for one or two during the spring and get a free souvenir t shirt! 707 938 2444 |
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Artisan Crafted Fine Cheeses
– Since 1865
Specializing in Handmade Brie & Camembert |
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| Marin French Cheese Co., also known as The Cheese Factory and Rouge et Noir is not just the oldest cheese manufacturer in the country, but a vacationers and day trippers destination as well as a unique part of American History. Located north of San Francisco, east of Napa County, west of Pt. Reyes and Olema and south of Sonoma County, Marin French has produced hand crafted Artisan soft ripened cheese since 1865. Rouge et Noir cheeses are similar to French and European varieties but reflect the characteristics of Northern California, producing it's own regional style. | |||||||
| The extension of the laboratory
for engines of the Swiss Federal Institute of Technology was completed
in about 1935. Its architect was Rudolf Otto Salvisberg (1882-1940).
He had a successful career in Berlin but returned to Switzerland after
the advent of the Nazis. His architectural style was somewhat similar
to that of Erich Mendelsohn. The staircase of the laboratory is in normal
use but well preserved. Edited to the tunes of Chemical Residue by Herbie Hancock. |
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Maybe in next rewrite, he'll fix the ignition timing and dyno chapters... Otherwise great book with great starting ideas. |
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My bible |
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The little blue bible for quick references and little known facts. |
