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Engine and Bottom End
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Bottom ring broke into 5 pieces, thoughts?
Mechanical seal
Counter Balancer
Sleeve cracked
Stock TRX250R Idle & Peak RPM - Working on New Project
How are the ESR cases holding up?
Powerbands?
Clutch problems!
kicker problems
Actuator arm needed!!
leak down test?
Hinson basket requires modifications?
oem crank or hotrods diffrence:
Factory grey Honda motor paint
Sphynx cylinder stud length...
How to know if head o-rings are bad?
Picking this motor and pipe up tonight, finally can start my build!
no spark
Intresting Cylinder
Hinson History
Good news for all Big Bore guys!!!!
87-89 Style Radiator Hoses - OEM vs eBay/GPI/Niu-X TRX250R
Shocking development on ESR cylinders
CR250 Ignition Testing - With Multimeter
Would you ignore this?
spacer plate vs short rod crank?
Max Bore size on OEM cyl/sleeve
clearancing for 5 mil crank
Hot rods 4 mil stroke crank is lower rod bearing area still clearanced
Anyone Have Overheating Issues with OMF Radiator Guard on their 250R?
Plug Reading
CR 250 head gasket on the TRX250R
esr 350 compression
ESR 310PV cyliinder...need input
Bringing back the 2 stroke compression release
ProX/ESR power valve block off..
opinions and experience on a few tech questions - Drag Pipe, 40.5 Carb
Radiator Cap part number
Oem cylinder skirt
engine troubles!!!
Kick start and clutch cover differences
PVL Ignitions
any difference in CDI (HA2 and HB9)
ct 330 porting
New Esr Pv cylinders
lrd/led big bore pipe..
To stroke or not to stroke: that is the question
Kick starter slipping
opinions on this break-in method
who did this?