Dynojet 1139.005 User manual

Thank you for purchasing this Dynojet
kit. This kit has been developed for a
motorcycle which is set to the
parameters listed at the right in the
“Stage” description. If your motorcycle
does not meet any of these parameters
please check with Dynojet before
installation. For technical assistance
contact your Dynojet distributor or call
Dynojet U.S.A. (800)-992-4993
2191 Mendenhall Dr. Suite 105
North Las Vegas, NV 89031
TEL: [phone]
FAX: [phone]
8am-5pm Pacific Time
Monday through Friday
Website Address
http://www.dynojet.com
The manufacturer and seller make no
warranties express or implied which
extend beyond the description of the
goods contained herein. Any description
of this product is for the purpose of
identifying it and shall not be deemed to
create an express warranty.
1139.005
U.S Models Only
1990-93 Honda VFR750F
Stage 1
For mildly tuned machines using the stock airbox,
with stock or K&N filter. May also be used with a
good aftermarket exhaust. K&N Filter #HA-0003
This graph shows a typical gain with a Dynojet jet kit.
WARNING
NO SMOKING!
NO OPEN FLAME!
WHILE INSTALLING
YOUR DYNOJET KIT
4Main Jets DJ120
4Main Jets DJ124
4Needle Shrouds DNJT02
4Fuel Needles DNO307
1Tool DT007
1Slide Drill DD #7/64
1Glue DA0001
4Adjusting Washers DW0001
4E-Clips DE0001
Parts List

1139.005
STAGE ONE INSTRUCTIONS
Fig. A Fig. B
SLIDE LIFT HOLES
NEEDLE HOLE
Place E-clip
in groove #3
from the top
1. Remove the vacuum slide from the carbs. Remove the stock needles & spacers,
noting the order of assembly. Locate the slide lift holes using (Fig. A). Using the
DD#7/64 drill bit provided drill both slide lift holes.
2. Locate the Dynojet part# DNJT02 supplied. With cutaway facing up and to the
engine (Fig. B), use the shroud tool provided (DT007) to press over stock needle
jet. Before pressing down add a touch of glue to the outer base of the stock needle
jet, then press down. Check to make sure there is no excess glue visible.
3. Install the Dynojet needles on groove #3, using all stock spacers. Install the
Dynojet washers above the E-clip.
4. Remove the stock main jets and replace with Dynojet main jets provided. If
you are running the stock exhaust use the DJ120 main jets, if you are running
an aftermarket header or slip-on with high flowing baffle, use the DJ124 main jets.
Be sure that the jet you are changing is the main jet.
5. Locate the fuel mixture tab (Fig. C), carefully turn mixture tab clockwise until
they seat, turn out 2 turns.
Fig. C