DRZ 470 with FCR 41

64 posts in this topic

Posted (edited)

The exhaust valves are usuallu the ones that take the most beating from carbon chunks and extra heat , probably a good idea to take care of them , intake may be ok but hard to say and how many miles were on the head already , doubt they were done when the bbore was done.


These are the valves I used for mine , . I can't comment on the Kibblewhites , I've used them in many other motors without issue but not in the drz , I didn't trust them due to reports whether right or wrong , so went with the Ferrea's along with their retainers .I used oem springs . I've used Fasthead as well , they do a good job and fairly cheap . Never did ask them about the Kibblewhites , maybe give them a call .




Edited by jjktmrider

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Toasted piston

Welp, good thing I left my head in the trusty hands of a local bike wizard.  Told me to bring him the jug and piston too for inspection after seeing the bottom of my head.

The jug needs to be replated or replaced, whichever is more cost effective.  Have a feeling the replacement will be.  eBay has a caltric brand 94mm jug brand new for $110 with free shipping.

Need to get an exact replacement JE piston, looking up the part number lasered on the bottom of it got me some good results for around $175.  

Probably going Ferrea or X2 or Pro X for the valve kit, whichever is the best bang for the buck.

Did myself in pretty good but should have a nice fresh setup to properly break in this go around!  Definitely leaving the dialing in to my moto wizard.  Plugging Mach Modified on long island for anyone local, awesome shop!

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Piston is detonated to the point of no repair

Jug is warped.

Ordered ferrea valve kit for the head

Cylinder works big bore kit on the way.  Hopefully be able to get some riding in before the season is over!

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