Recent content by Mi Nan

Yesterday I went down to run my outrigger. After the first run, I went to refuel it and I noticed a head bolt missing. I called it quits and went home to get another bolt. I removed the other head bolts and noticed that one bolt had snapped of flush with the cylinder. Does any know how to remove...

I just recieved a new piston and sleeve for a CMB .21 engine. The new piston has the bottom skirt cut out over half way around its bottom. The original piston had a solid bottom. Does the cut out area face forward towards the intake side or rearward towards the exhaust end? I'm a little...

Unfortunately I blew out my friends cmb .21 greenhead's connecting rod today. Could someone please tell me where I can purchase a new rod for this engine? Thanks. Mike

I have been wanting to build a monohull. My friend has a cmb greenhead with no home. I seen a dumas mach 3.5 on Ebay, Any thoughts on this boat? Thanks. Mike

My friend purchased a used fiberglass rigger from Als Hobby shop a couple years ago. Last year we had an accident with it, and I don't think it is repairable. Does anyone know who makes 21 size fiberglass rigger? Thanks. Mike

I haven't run the boat since I encountered the problem. I thought I had balanced the prop, but I will recheck it before its next outing. The boat will probably see water over this holiday week. Thank you for your input.

Last weekend my friend and I were running his Hawk rigger. I noticed the brass bushing inside the strut would vibrate back out of the strut causing the prop to flail about. At the end of the day the larger end of the bushing was gone. What did we do wrong to cause this? thanks in advance Mike

I am rebuilding my friends Quicky 40. He has a picco 45 to put in it. I don't have another 45 size tune pipe for it. I have a black CMB 21 size quiet pipe not in use. Would this pipe work on the picco 45 ? Thanks for the help Mike

Hello. I completed a Dumas hawk 7.5 for my friend about a month ago. I am now in the process of building a hawk 3.5 for my self. There is a major difference in the front sponson construction. The 7.5 hawk's front sponsons have brass tubes installed and boom collars hold the carbon fiber booms...

I just finnished building a hawk 7.5 with a new Mac 45 in it. What is the best way to break in this engine. I have byron 45% nitro fuel for it. I added 2oz of castor to the gallon of fuel. What glow plug should I use in this engine? I know Mccoy 9 is probably the best, but I haven't been able...

Thank you for the replies. I know that my radio box leaks a little. After 3 or 4 runs, there is maybe 1/3 of an ounce of water in it. What do you seal the box cover with? I am using single side foam tape. T have rubber pushrod seals on the throttle and rudder pushrods. Does the stuffing box...

Let me first say I have been flying model airplanes for 15 or so years. All of my air radios are either FM or PCM. Yesterday my friend and I went down to the pond to run his outrigger. He has a Hitec AM pistol grip radio for this boat. There were other people operating any other radio control...

I have a friend with a picco 45 in a quickie 40 rigger. I would like to know what pipe lenght we should run for this engine? I also have a mac 21 in a new rigger,and I would like to know what glow plug to use in these engines? thanks.