Yamaha XS11, all years
True Rear Wheel HP
Blaine Hoopes XS11 Carb pages:
It's possible that I can make needles and just as possible,
make new emulsion tubes/needle jets...
Repair / Tuning Parts
we try to include enough jets in our carb recalibration kits to tune stock-engined bikes, sometimes you riders and tuners just can't resist tinkering for
a bit more power - and that usually means that you need different pilot
and or main jets.
We have them in stock and ship daily!
415 491-5920 to order
~ 5.00 ea
|Main jet||#221||small, round slotted|
|Main jet||#604 XS-11||large round slotted|
|Main jet||other types available||.|
|Pilot jet||30/96||emulsion type|
|Pilot jet||151/067||non emulsion type|
TL-float height gauge
|The only way to accurately measure float heights. Works on nearly
More information on how to set floats, resultant fuel level, it's effect on low rpm fuel delivery, pictures.....
Float Height Page
|Float Height Measuring|
|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 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"
click the pic or here
Blaine Hoopes XS11 Carb pages:
Go to General Technical Support
|Absolutely NO carb parts sold in California.|
New and improved
Finally - Quick, easy, cost effective
with no expensive "add-on boxes"
fax 415 492-8803
Support /Tech SECTION
And most importantly
This Tuning Site has been visited by
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