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pitcrew
12-25-2009, 09:33 PM
hey guys im gettin ready to put a 13.5 je piston and hotcams (intake and exhaust) and a pc3 on my 07 ltr....is there anything else i should maybe look for or do while the motor is taken apart???
kfx400rider03
12-25-2009, 11:10 PM
if you have stock intake valves with alot of hours on them i would replace them. they are known for "cuping" is the term our local shop uses. the valves hang open and cause the quad not to start and lose a bit of power
pitcrew
12-26-2009, 07:29 PM
ya the valves r original the bike prob has 50 hrs on it ...should i replace both sets of valves....and what kind would any one recommend...i know there r kibbble white ones what about stock valves would those be good enough
IRISH-RACER-14
12-26-2009, 07:48 PM
port and polish would be good.
kfx400rider03
12-27-2009, 12:11 AM
deffinetly would replace just intake valves and yeah kibble white valves are good. you just need the valves not the valves springs and all that other crap they say you need. you only need that if you are doing a big lobed cam stage 2 and up. other wise you should be fine with the other mods you have said
pitcrew
12-27-2009, 08:14 AM
irish it is gettin ported and polished also forgot to add that.....and thanks kfx good to know.
Springbok
12-28-2009, 06:45 AM
I have more than 300 hours on my K7 with the same exhaust valves.I have changed the intake valves about 3-4 times and the exhaust valves havent even required setting. I changed to the Kibblewhite valves on my K8 and will let everybody know my experience with it a little bit later.
atveric132
12-28-2009, 07:02 PM
i wouldnt waste your money on an intake cam. you gain nothing with them in the ltr's just the exhaust
kfx400rider03
12-28-2009, 08:28 PM
Originally posted by atveric132
i wouldnt waste your money on an intake cam. you gain nothing with them in the ltr's just the exhaust

i heard the oppisite of that. i heard the exhaust does nothing but the intake cam does?
just saying what i heard not saying your wrong. just makes me wounder what cam i should get now.
atveric132
12-28-2009, 08:52 PM
yea your right im sorry the intake cam is all you need. exhaust cam is waste of money. call mike or melissa at atp he will let you kno whatsup