School me on 55" Twin Cats

[FighterCat57]

I would start back at the 1.25L and 1.5H
and then start to lean out the H needle a little at a time, like 1/8th of a turn
to rich and it will just flood out

I think that's exactly what is happening and I think it's happened so much that the plug is shot.

Arrow Shark said to use a CMR7H Iridium if I can. I think it's a hotter plug, but don't recall the number assignments...
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OREGON DISPENSARIES

[crabstick]

what carb has it got on is it a WT 257 ?

[FighterCat57]

what carb has it got on is it a WT 257 ?

It says Walbro, but don't see a model number
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Townsman

[Brod]

If its the same motor,which it probably will be,its a 257 carb,therefore settings low-2 and High-1 turn out.

http://www.radiocontrol-2005.com/xp254m.php

[FighterCat57]

If its the same motor,which it probably will be,its a 257 carb,therefore settings low-2 and High-1 turn out.
http://www.radiocontrol-2005.com/xp254m.php

Yep, that's where I started. It was about 1.5 out when it stalled, so that sounds about right. New plug, lean it out a bit and it should be good to go.

We'll see. Letting the pull start blister on my hand heal first.
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CALIFORNIA MDECIAL MARIJUANA DISPENSARIES

[Brushless55]

looking forward to your new speeds!
gassers are fun

[crabstick]

1.5 sounds a tad lean.

check this QD DV hotpipe, perfect for when you want more power http://www.jrcbd.com/showthread.php?t=40511

[tiqueman]

I agree w/ Brod. 275 base setting are about 1-1/8 H and 2 Low. Ive set all my 275s' off that setting and always had easy tuning and never any problems.

[j.m.]

Yeah, I was about to say that sounds like you leaned it too much.

Replace the plug and always burn some fuel!! (Keep it rich, this is a sport setup and you want the engine to last, right??)

Jon

[FighterCat57]

Yeah, I was about to say that sounds like you leaned it too much.

Replace the plug and always burn some fuel!! (Keep it rich, this is a sport setup and you want the engine to last, right??)

Jon

Yep! Although I had it way too rich that that's what I think caused the stall and continues to give me grief.

Vacation for the next few days, so will pick up when I return.

Going to try the recommended settings.

FYI- Home Depot carries the spark plug for $2. Who new? It's a Ryobi plug and it's labeled as a 4 stroke engine spark plug. I dunno, the numbers match and it fits, so cool. We'll see if it works.
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Dodge sidewinder history

[crabstick]

Generally speaking, unless excessively rich, Rich Runs, Lean Stops.

I can get my rcmk so rich, fuel drips out from the pipe lol, and it will still go

Get an NGK Plug, See if the CRM7H will fit

[Brushless55]

Hey Robert, did you ever see this youtube vid?
I saw this about a month ago and totally forgot about it
it's your hull with twin 8XL's on 4s!
that's cheap fun..

http://www.youtube.com/watch?v=0SdG4Kis9NA

and this is the add on ebay that has some close up pictures
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT
I may have to give this a try and not get the Team Believer!

[crabstick]

Hey Robert, did you ever see this youtube vid?
I saw this about a month ago and totally forgot about it
it's your hull with twin 8XL's on 4s!
that's cheap fun..

http://www.youtube.com/watch?v=0SdG4Kis9NA

and this is the add on ebay that has some close up pictures
http://cgi.ebay.com/ws/eBayISAPI.dll...=STRK:MEWAX:IT
I may have to give this a try and not get the Team Believer!

Think i posted that vid earlier. man, look at the caps on that sucker!

[FighterCat57]

Found the NGK plugs, strange they are so hard to find. Ryobi had an equivalent at Home Depot that seems to be working out well. Still not in the water, but did fire it up today and it's running strong! Nice amount of smoke and the mix settings seem to provide a great amount of throttle response!

It's calm enough out, I just might hit the water with it. Just struggling with the sore memories of the struggle to get it running with the fouled plug... they are still a bit fresh in my head and really don't care to deal with it today.
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Toyota Sv-3

[crabstick]

if mine dont go in about 10 pulls, i pull the plug and clear the motor...