[cmktech]

Post here if you have the new trailbikes head.



Also, post if you have had the bent valve problem. I am wondering how common it is, especially since I just bought this kit.

 

[Slowfiddy19]

i got the new head, and bent my exhaust valve, but .. it was my fault it bent so i cant blame them ...

still havent shipped it out to get new valves put it in ... i had the valves for over 2 weeks now ... ha

 

[cmktech]

how did you bend them? not properly set to spec?

 

[skate]

I have the new head and I have had no problems with the valves.

 

[cmktech]

I have the new head and I have had no problems with the valves.

that's good to hear.



My buddy installed his, got one race out of it, and the intake valve actually BROKE off and stuck to the piston.



Currently, I am skeptical about these heads.

 

[Z50King]

i have one on my z. works good so far. and all my fast50s head covers fit too. and the fins on it are huge

 

[cmktech]

Nice, I have a fast50's dress up kit I want to put on it. Good to know it will fit.

 

[50-Pit]

I have 2 of them and both run great, not one issue at all

 

[filthyboatguy]

Talkin' 110 or 50 head?



I have the old 50 head ported by Ray at RJP, runs great.

 

[minimxracer]

I have the new TB head. I installed it with the 88 p/c about 1 month ago. I just pulled it to put on the 117 P/C and noticed that the piston had hit the valve. It had dents in the top of the piston. The valve looked fine. I figured what the hell I will go ahead and throw the 117 in anyway. I have ridden it twice with no problems. I will tear it down soon to see if this piston has hit. I don't know if the valve was sticking or what. I hadn't heard of any problems with this head yet.



Anybody know what the problem could be?

 

[cmktech]

Talkin' 110 or 50 head?



I have the old 50 head ported by Ray at RJP, runs great.

We are talking about the NEW 50 head.

 

[blackflag50s]

just bought a 117 tb kit andgot 10 min and bent a valve.waitng for monday morn to see what they will do ,if i had known i would probably not have got that kit .but i guess it depends on how quickly they resolve it.

 

[T Bolt USA]

we run the new 50 head on our race bike and its a good product

infact dakota kessler ran one most of last season at e town 88cc class and won the class



i have a few extra int/exh valves sitting here

 

[slapaho16]

i had one start sticking on me and bent but i knew it was sticking i just faile3d to do anything about it

 

[jeff mcclure]

i have probally 75 hard hours on the new head and no problems at all this is some of the best head i have ever gotten..lol

 

[Wurms]

New head here.. doing just fine after 2 hours.

 

[Jetster220]

I have about 80 hours on the new head of hard abuse, no issues.

 

[tattoofan]

i have the new style head and did bend the intake valve after very little time on the build. i have contacted tb and thus far they are working with me. has anyone else worked with them on warrentying the product and how have they been?

 

[540SIX]

I have it also and my valve is also bent. What to do??

 

[slow600]

no problems w/ mine, started out 88 then went to 117. no problems at all. built a total of eight motors for my friends, all using the tb 88rh kit. none of them have problems. pulled three apart for maint and found no problems. could the valve problem be caused by the valves not being adjusted properly or the cam gear off?