Back into RC after more than 1/4 century

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Tom_Handley

Member
Joined
Aug 19, 2024
Messages
21
Hi,
I was really into RC nitro boats when I was in my early teens.
I have a 7.5cc Tunnel with K&B modified outboard and a 7.5cc mono multi (has a worn out k&b 7.5, just ordered a new CBM V5 .45 to put in her). They need a lot of work as they have been sitting on a shelf for nearly 30 years - new radios, new servos, new fuel tanks.
Going back to my roots and getting my board running again.
Cheers,

Tom
 

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Hi Tom,,welcome back to the hobby.I came back after 30 yrs myself lol,.I have a few K&b 7.5 inboard engines I ran in a sprintcat,and I also bought a CMB v5 last year lol.You'll be surprised how much the CMB revs compared to the K&B.You might have to prop down a bit,depending on the nitro %
Only problem I had with the CMB, was the carby barrel locating screw and locknut coming loose and the barrel coming out,,so either use some loctite or super strenght araldite like I did lol
Don't over tighten it as it can strip easy,as the screw thread might be truncated and a loose fit in the carby,like mine was.
Most guys here use aftermarket carbs.
cheers from Sydney AU
 

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