newbie asking..

[chai cheon lim]

heloo,,i m newbie.from malaysia,

i owned a .25 nitro boat.. do anyone tried aquacraft grim racer props??is it good ??performance??i know u would recommend me octura,but my area here hard to get that prop.do it good as octura or prather prop?

thank you..

chai87.

 

[camaroboy383]

First off,, welcome to intlwaters..

The grim racer props are great!! Awsome performance.you wont be disappointed.

Alden

 

[chai cheon lim]

camaroboy,

thank you,i thought aquacraft props just manufacturer for aquacraft boats only..AQUB 9715 AND AQUB 9725 ,,which 1 more suit for my 3.5 cc boat??anyone give more suggestion???thanks..

chai,

 

[M@MRacing]

more questions what engine do you have and what hull

 

[camaroboy383]

camaroboy,

thank you,i thought aquacraft props just manufacturer for aquacraft boats only..AQUB 9715 AND AQUB 9725 ,,which 1 more suit for my 3.5 cc boat??anyone give more suggestion???thanks..

chai,

The grimracer line of props is actually quite large..

Like robert said,, we need more info on your boat.. .25 hmmm sounds like a vertex engine..

I would try like a 40x52 3 blade or a 40x53 2 blade, sharpened and balanced up good.. Need to see your set up..

Could end up needing a 36x55 or somthin..

Alden

 

[chai cheon lim]

hello,,

i have delta force 33'' mono. the engine is GO brand 25.

chai

 

[camaroboy383]

hello,,
i have delta force 33'' mono. the engine is GO brand 25.

chai

So im assuming it has a 3/16" stub shaft??

I would stick with what i recommended above.. But scratch the 36x55 , its a 1/8 hub prop.. The other two should get you close.

Alden

 

[M@MRacing]

Try also a 440/3 blade

 

[chai cheon lim]

thank you for all ur tips..i will it try 1 by 1.i have a queston.actually i have my boat with shaft that square end.is it posible for me to change to flex shaft that welded with the stub type without replace the strut??

which kind of of it u people prefer to use?? and which 1 give more advantage??

 

[M@MRacing]

Yes you can change to a regular flex shaft

 

[chai cheon lim]

hi..

i have problem starting my engine..it is hard to start,after trying many time pulling,it start for awhile and then stalled..wat is the problem?

i screwed needle valve two rotation out,after screwed all in.is it rich enuf for break in??or too lean??

 

[camaroboy383]

i would actually start out around 2 1/4 - 2 1/2 turns out on the high speed needle,,,, than set the throttle so it will run on that setting.. somtimes the carb ends up half open before it will run on the stand... when you get it to the water it will act different as there will be load on the engine,,should basicaly straighten out a little and be a bit more responsive in the water... make sure the engine isnt flooded,,loosen the plug slightly if you have to..you can fire it like this also and then tighten it up while its running....

alden

 

[M@MRacing]

Since it is a new engine you will have alot of compression lossen the plug some to get it started.

 

[larcor69]

make sure you have the fuel line full of fuel by holding your finger over the carb opening till you see fuel come up through the line to the carb maybe 1 short pull after you see it reach the carb, then make sure you have a good glo plug ignitor, she should fire right up, after she's running there should be a mist of fuel and smoke comming out the exhaust, the richer the better, boat's always run on the rich side as compaired to r/c cars, some time's you just need to remove the plug, flood the engine by choking it then,turn it up side down, pull a few time's to run the extra gas out then put the plug back in it, should fire up after that also