clean snowmobile
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CLEAN SNOWMOBILE. UNIVERSITY OF MAINE 2011-2012. Team members: Lucas Farrar, Andrew Gwarjanski , Kalee Gurschick, Michael Galli and David Raymond. Engine Rebuild. 2007 Yamaha Phazer. - PowerPoint PPT PresentationTRANSCRIPT
CLEAN SNOWMOBILEUNIVERSITY OF MAINE 2011-2012
2007 Yamaha Phazer
Engi
ne R
ebui
ld
Due to a damaged
piston occurring in
the 2011 competition,
the first milestone for
this year’s team was a complete
rebuild of the 499cc twin cylinder 4
stroke Yamaha engine (right).
A custom exhaust (right) complete with a pre-cat and catalytic converter
from Random Technology Inc., along with a Walker Quiet Flow muffler, was added to reduce sound
and emissions.
Team members: Lucas Farrar,
Andrew Gwarjanski,
Kalee Gurschick,
Michael Galli and David Raymond
MegaLog viewer is a useful tool capable of
plotting engine parameters such as RPM, manifold abs.
pressure, pulse width, duty cycle and spark advance over time while the engine is
running. These curves (above) help in trouble
shooting and aid in achieving optimum
engine performance.
CLEAN SNOWMOBILEUNIVERSITY OF MAINE 2011-2012
Fuel Injector Flow Bench
A crucial control input to any
engine is the fuel injector pulse
width. In order to learn more about the fuel injection
system of the Phazer and tune
the engine properly, a fuel
injector flow bench was fabricated
(above). The schematic to the right displays the additions to the
existing dynamometer
cart.
Cust
om C
owlin
gs
The 2011 Team fabricated custom cowlings that were
lined with heat resistant and sound deadening material.
This year, any weak or damaged
spots were repaired and the pieces were given a fresh coat of
paint (above).Special thanks to Mick Peterson, Diane Maguire, Karen Fogarty, Chuck Maguire and Jakob Low.