mistycreekboats

My Feedback: (1)

Read the 'sticky' now (at top of page for Gas boats forum) lots of info there on setting carb and pipe up right

http://www.rcuniverse.com/forum/m_9759570/tm.htm

Randy

MrMikeG

Leave the 2 on the low, rich on the low might save your engine if you ever loose water. (20:1 fuel mix) play with the high for wideout throttle, use a tach or GPS as sound is not enough. In my experience lean sounded faster but slightly rich was really faster by GPS.

zazza

hi guys.

idocdave09

My Feedback: (1)

A good plug is a medium chocolate brown

zazza

danielplace

Plug coloring is read on the ceramic surrounding the centerelectrode. It is best to read them after a new one has been installed and run flat out for several minutes and driven back in hard with no idleing. If you are already running good the most you would want to turn a adjustment screw is about 1/16 maybe to 1/8 turn other wise it is just going to be too lean or too fat. 1/2 turn would surely put you well out of the ballpark and you will have to start all over. It isn't just that your final mix is correct either. First you have to zero in on the exact low to high needle ratio your engine likes for the best low end and transition.

danielplace

If the collet is completely disassembled each time you reinstall the cable ensuring it is clean and grease free and slide the cable in all the way to the bolt and then slide the collet insert/nut up the flex and thread in on the collet. If you just loosenit pull the cable and then just shove it back it you can almost be sure most times it did not go COMPLETELY through the insert.
The harder you push the harder it is going tpo fight you sliding it through. As you push it is also shoving the insert into the taper of the collet so even a 10 pound sledge wouldn't push it through. Never bang or yank on the cable for any reason. I hate shaft savers but thta is a option to possibly retain the shaft in these cases. My opinion is they ruin the cable. Nothing shoiuld be clamped on the hard spring steel windings in my book. ????And especially not a setscrew type collar. One nick and it will fatigue and the winding will break.

zazza

thx daniel,

that's some food for thought you gave me...................... i was being a bit rough on the settings and what you said, cleared it out.

I will start all over again, this time with a slower pace.

as per the shaft it was split at the stinger .... nothing that could have damaged it.....about a couple of inches from the prop......no prop saver would have worked!!!!!

but i didn't expect the shaft to be that sensitive, i was hammering softly to get it in....guess i have to find another smooth way of donig things :-)

thanks again, i'm finding this forum thing very interesting!

Dan S

zazza,
to answer your question regarding what spark plug to use,
use the NGK CMR7H, and stay away from Champion as they don't like water.

Dan.

HendricX

More important ... Champions can spit their center into your engine.

Totaly ruining your engine.

Dan S

Thanks HendricX for pointing that out, I forgot to mention it.

Dan

zazza

thanks guys.......

Dan S

I would start with a 7016/2
I find it a good all around prop on a Vee or Cat and stock or Mod Zen.

someone else may have a better choice or favorite.

Dan.

HendricX

7014-15-16/3 are good starting points.

If acceleration is not OK ... pull back your exhaust for 5 > 15mm.

If your exhaust is welded/fixed .. go 2 > 5mm lower on prop-diameter.

65 or 67-14-15-16/3


Ohhhhhhhhhhh ... and about loosing your prop ...

If your stinger can take 8x10 bearings , you could use the German-style 8mm propshafts ,
and drill/tap a security-bolt into the stinger.
Almost fool-proof :-)

zazza

Any links from where i can get one please?

HendricX

2 or 3 blade depends on the set-up and your preference.

A 3 blade has always 1 blade in the water , some hulls will behave better that way.


I make/rebuild struts and stingers , examples are in my [link=http://www.powerboat-friends-freising.de/usergallery/thumbnails.php?album=1069&page=1]online album[/link].

zazza

any idea on where i can get props here in euorpe??

HendricX

Octura's @ [link=http://www.prestwich.ndirect.co.uk/octurapropellers.htm]Dave Marles[/link]

Prop-shop & ABC @ [link=http://www.modellbaucenterlorenz.de/catalog/index.php?cPath=31]Tom Lorenz[/link]

DEF / No name @ [link=http://www.rcimport.nl/c-842679/props/]RCImport.nl[/link] / [link=http://www.tfl-hobby.de/index.php?cat=c163_3-Blatt-3-Blatt.html]TFL.de[/link]

zazza

ThxHendricX.... i'll give them a look.

Jackercsweden

hey Ithink itworks greattheonly riskis that it getsair bubblesin the water!
Pleasecheck outmychannel :http://www.youtube.com/user/TheJacke08?feature=mhee

And : http://www.youtube.com/watch?v=5bV9Z...66jo9k2i9END-K

My regards Jacke rc sweden

zazza

what prop you suggest for the standard zen ??

i tried it on an approx. 81mm 3 blade.....and it was a quite good....
don't know the prop number cause from who i borrowed it forgot :-(