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i have found my problem yesterday,intake of air box was obstucted by 3 shop towel.it was obstructed a least 60 pourcent.i had forgotten on my last oil change when i change oil for xp2.in the same time i have checked my compression and it is around 205 psi with cold engine on four cylinder.with...

i have only 10000 miles and the sled has been broken as yamaha recommends with intermittent short w.o.t..when i put xp2 oil i run br oil before at idle 2 times 15min.

it's the anwser that i expected.87gtnos you have always the good anwser for me!!! tank you

But Ulmer said it's safe run with this oil

i'm thinking that 0w20 oil its so light for heavy ride!!!But i would like to know what ulmer think about this !!with 0w40 oil i put approximately 1/2 quart per year(2000-3000 miles)

since i use this oil my engine have a oil consumption,is it normal,someone have the same problem. i have put 1 quart of oil for about 600miles

tank you for your answer,i thinked the same think but i was not sure

i have now a another question.if i can put a 43 th in bottom,can i put a 23th gear with for total 23/43

tankyou,no need to machining because i removed all the reverse stuff

i want know if someone try to put a 42 tooth bottom gear in stock apex chaincase.it is there enough place?

did you put a racing yamaha parts or another aftermarket

the maximum head milling on apex is .004'', and much of people run with 13 at 1 piston with premium gaz with no problem.i don't want put a jobber piston in my yamaha.i don't trust jobber.i search a way to raise my compression keeping a original parts.

where you buy a aftermarket thiner gasket.is that a racing head gasket from r1 2004-2006 fit on apex 2006 tank you

Is there anyone who has milling cylinder head for raise compression is that increase performance or not

is that there has a difference off gain on pc5 vs pc3

no problem with mono.maybe you can machining shaft for encrust the strap in

8FU-47489-10-00 $145.04 it's a gytr monoshock spring,i've one on mine and weight 210 lb.it's a big difference for bottoming and ski lift

in 2000ft my sled have not enough power to pull the 24/39 to a ratio 1/1 i think if traction is good the 23/39 is better on short distance on long distance 24/39 may be better last night 3 friend (800 etec,1200 brp,apex rtx yamcharger) and the better is the yamcharger and it is nose to nose...

i make last night some test with gearing on 2000' hardpack trail at 20 degree,no wind.i just play with shim in the front to keep the engine at 10800. all speed is in km on gps and keep 70 link chain and 39 tooth on bottom all the night 22/39=174km 23/39=185km 24/39=176km i think that...

is that you keep the same clutching with both gear and how long your lake