Doldguy, 5mm on the tecate crank. I dont originally build these motors. I dont have the the skill per say or the proper resources. I can rebuild them myself.
That being said. The motor your looking at has the kx crank grafted into it to match the jug. The pipe is dyno made for that motor. ILR performance out in Wa. The reason I am doing a new motor all stem from the desire to have a cool head. Phat head. So after reading I decided to commit to the "1851" jug. Bought 5 of them all with PV's and 3 additional sets of new power valves. That ultimately was the reason I wanted to convert to a kx250 jug. The tecate power valves were brittle and not available.
Sounds like this motor is going to have some low end grunt by design from what you say. Perfect. I wonder if I should go for a mid-top pipe?. I run a pvl and the pulse induction system that's in the K5 threads.
Im really looking forward to the new motor. I may not have it for this summer, unsure yet. Here's a run down on whats going into it.
T4 lower end 6 speed
1851 jug, 310cc, port and polish, phat head running 50/50 blend of vp110 and 91 pump fuel
Tranny is under cut by fast by gast, NOS input and output shafts
Complete tranny and anything steel pertaining to shifting, power valve, counter balance, kick start and even the back gear off the clutch basket is gone to CV products for micro polish
Pvl ignition
K5 hinson clutch basket
Pulse induction fuel intake
Im anticipating a fun bike. My quad in the picks waxes that other T4 and im 80lbs heavier body wise than my buddy
Not to mention that ltr450 geometry with them 17" elka stage 5's. Will be 50". No problem for trail riding here. Going to be golden
That front end in the pics is the +3 set up using 08 yfz450 take offs and outfited with 16" dual rate fox's. I kept my hardkor front hubs, gafler rotors for these new lsr spindles. Original T4 shocks were 14" and s**tty single piston calipers to boot. Upgraded to custom +2 steering stem that is oversized and integrated the 250r 4 bolt frame clamp, kfx450r walsh lower bearing, precision pro model steering stabilizer and precision shock n vibe bar mounts that hold renthal fat bars. Dynamite, threw in the fasst co brass bar inserts and reduced feedback ro the hands dramatically. Bring on the stumps and rocks. The new spindles shorten up my tie rods by 1 3/4" per side. I think that will even improve feed back.
I just hyjacked my own post. Anyways fun to see a couple of yahs interested. Id have a tough time naming 10 people that are as deep into there kawasaki tecate 4 as me. Id bet the farm on it