250r Wiseco Top issue 86 250r

[trikes4life]

Just put a fresh top end in a 250r, and the new piston is hitting the head. Would a 5mm Base plate fix this or should i go shorter piston. Oh and i just found out the Crank is a hot rod.

[jeffatc250r]

What year bottom end yo have?If its 87 and up bottom you need a 87-89 piston, OR you can run a short rod piston 85-86 along with a cyl base spacer. Need more specs on your setup

[trikes4life]

i ran the vin and came up 1986. the guy it came from said it was stock bike. but once the head was off i seen it had hot rod crank, the piston was destroyed. So i had it bored and piston to match. and put it back together and it wouldn't crank over. pulled the head off and the piston goes higher than the jug.

http://i282.photobucket.com/albums/kk265/miah7c/100_2055.jpg

[KASEY]

if you put a short rod piston in it,,, and you have a long rod motor,, bingo,, it hits.. thats the only way... how much does it come up above the cylinder,,?? it would be 5mm if you have a long rod motor,, what piston did you get a 526 or a 562??

[LT80]

Once apart, the 88/89 long rod is prefered by most. Obviously the problem. Like mentioned, get a spacer plate or a 88/89 piston.

[trikes4life]

got a base plate put it back together, fired and ran 3rd kick. i never rode a 250r before, holy hell they are quick.

[RideRed250R]

all the new hot rods cranks are long rods, they no longer make short rod cranks

[tj-1bad250r]

got a base plate put it back together, fired and ran 3rd kick. i never rode a 250r before, holy hell they are quick.

lol way too funny hell yea its fast its a honda