I live 500 ft above sea level and the average temp here is 80-98 F, I have a 14mm RT Delorto clone and a BPR7HIX spark plug
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I havent done one thing detailed in this report on SHA Delorto carbs. (Probably should lol)
http://www.dragonfly75.com/motorbike/SHA.html
But my bike has a .70 and it runs too lean @ 32:1 when going more than half throttle for extended periods of time. When running slowly 15 mph or so for awhile, it comes out too rich.
So im having the exact OPPOSITE problem that you were when you got your Delorto and moved down to the coast. (if that was you lol)
Im having trouble telling because the plug was fowled when it originally had a .75 in it and ran too rich, and keeps coming out with a real light tinge of white over the black fowlness. Does this indicate detonation? and What does a detonation sound like?
When I ride, she has great acceleration up hills, and has no problem accelerating down them, but after long periods of high rpm, it seems to pop once the rpm drops, as if its having backfires or detonations. (im still not sure if it is or not, im not entirely sure how to tell what a detonation is or sounds like)
I could go up to a .75, but it will run way to rich and bog out.
I could go to a .65, but the lowest recommended jet for where i am is about a .68~.70 @ 500-800 ft / 85F using the table provided in that article.
B = Base Jet Size (says size that came with engine, but you dont put a jet in an engine? and the NT carb is meant for less than 66cc, because it always bogs out at WOT)
P = Number From Chart (Estimated As roughly half of 1640 ft)
820 ft.
So somewhere inbetween the two on the chart. .98
B x P = N
.70 x .98 = .686
(Not sure If my calculations are right. Guessing that the stock RT dax performance carb 14mm comes with a .70 jet, but im not sure what the engine originally had)
If anyone could help me calculate this I would greatly appreciate it.
I could go out and get another spark plug, or play around with the fuel mix, but the fact that the carb sometimes runs leaner than other times makes me not want to get a different plug.
.
I havent done one thing detailed in this report on SHA Delorto carbs. (Probably should lol)
http://www.dragonfly75.com/motorbike/SHA.html
But my bike has a .70 and it runs too lean @ 32:1 when going more than half throttle for extended periods of time. When running slowly 15 mph or so for awhile, it comes out too rich.
So im having the exact OPPOSITE problem that you were when you got your Delorto and moved down to the coast. (if that was you lol)
Im having trouble telling because the plug was fowled when it originally had a .75 in it and ran too rich, and keeps coming out with a real light tinge of white over the black fowlness. Does this indicate detonation? and What does a detonation sound like?
When I ride, she has great acceleration up hills, and has no problem accelerating down them, but after long periods of high rpm, it seems to pop once the rpm drops, as if its having backfires or detonations. (im still not sure if it is or not, im not entirely sure how to tell what a detonation is or sounds like)
I could go up to a .75, but it will run way to rich and bog out.
I could go to a .65, but the lowest recommended jet for where i am is about a .68~.70 @ 500-800 ft / 85F using the table provided in that article.
B = Base Jet Size (says size that came with engine, but you dont put a jet in an engine? and the NT carb is meant for less than 66cc, because it always bogs out at WOT)
P = Number From Chart (Estimated As roughly half of 1640 ft)
820 ft.
So somewhere inbetween the two on the chart. .98
B x P = N
.70 x .98 = .686
(Not sure If my calculations are right. Guessing that the stock RT dax performance carb 14mm comes with a .70 jet, but im not sure what the engine originally had)
If anyone could help me calculate this I would greatly appreciate it.
I could go out and get another spark plug, or play around with the fuel mix, but the fact that the carb sometimes runs leaner than other times makes me not want to get a different plug.
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