STEVE MARSHALL
Posts: 597
Joined: 1/25/2007
From: Perth, AUSTRALIA
Status: offline
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Well had it out again today, Not alot of joy. But did manage to get another 1.5kmh out of it, its now doing 45.4kph. It's still only getting half the revs it's got. I started from scratch, 1 1/2 on both needles, then up and up on the low one to get good off the mark and mid range. Got to a point on the L and things went backwards, so back to the last setting on the L. then started going up on the H, at times it would have just a flat spot and others it would serge but never rev out. (idle was all over the shop as well) I found a happy spot and then played with the strut, up,down,trim up, trim down. The only thing I didn't try is cranking the tabs down to lift it's but out of the water. I think now I will remove the carb and isolator block and check the gaskets and surfaces, The H does'nt seem to be doing much at all. I know its got more,(Hope alot more) its a matter of finding it.
Steve
OH Yea, just about rolled it too, it doug in on a corner, a bit fast and turning too sharp, it just glided along on it's side for about 3 boat lengths and then flopped back down and stalled lol, even my son said oh sh#*## as I did.
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All Forums >> RC Boats >> Speed - RC Gas Boats >> RE: 54in Mono Build 
RE: 54in Mono Build - 
. But on the good side I got alot of tuning information from the guys at the club. I have been trying to tune it all wrong, being a motor mechanic i took the low as a idle air bleed as in a car, A big wrong for these carbs. Now i have a better understanding of these carbs i will have to take it back to the local pond and start again. 
.,ill look forward to seeing her run better next time out. 
(dark mark in pic) I would have been a clear path betweem the pulse port and the intake port. Secondly i found the brass inserts are about .38mm above the surface of the isolator. I will have to order some new gaskets and flie the isolator flat or get a 
