NOVAROSSI Engine thread....
#7127
#7128
Thats the point, JUST going by listening isnt enough to ensure having a balanced tune meaning a proper gap, lsn and hsn settings. If too high gap, to rich lsn that could be also masking a lean hsn, etc etc. I dont know about you but with my $550 engine it better tuned right. I used to think like all you guys (what ur saying) and I learned some more things, thats why i posted some of this info, to help us all maybe just listening which is obviously what I do as well, but then checked my carb 1 day and my gap was like almost 4mm! and i thought it was tuned pretty well. This means the lsn was prob too rich and high end too lean. Now how bad is an out of balance carb for the engine, i dont have real world proof for consiquences, but you i know that you can get the most out of the engine power and runtime wise if its set right. Hey by all means, if just going by listening all the time is it and makes no diff making sure its "in balance" and optimally set, then then better for us cuz that would be less work. Any other ideas would be good.
just remember Maximo isnt a fool wen coming to nitro, so just trying to help..
#7130
No buddy, certainly no one will fool me its not about that... Guys like Maximo from CRE a guy that knows more then all us about nitro engines is saying things like this so.....
Thats the point, JUST going by listening isnt enough to ensure having a balanced tune meaning a proper gap, lsn and hsn settings. If too high gap, to rich lsn that could be also masking a lean hsn, etc etc. I dont know about you but with my $550 engine it better tuned right. I used to think like all you guys (what ur saying) and I learned some more things, thats why i posted some of this info, to help us all maybe just listening which is obviously what I do as well, but then checked my carb 1 day and my gap was like almost 4mm! and i thought it was tuned pretty well. This means the lsn was prob too rich and high end too lean. Now how bad is an out of balance carb for the engine, i dont have real world proof for consiquences, but you i know that you can get the most out of the engine power and runtime wise if its set right. Hey by all means, if just going by listening all the time is it and makes no diff making sure its "in balance" and optimally set, then then better for us cuz that would be less work. Any other ideas would be good.
just remember Maximo isnt a fool wen coming to nitro, so just trying to help..
Thats the point, JUST going by listening isnt enough to ensure having a balanced tune meaning a proper gap, lsn and hsn settings. If too high gap, to rich lsn that could be also masking a lean hsn, etc etc. I dont know about you but with my $550 engine it better tuned right. I used to think like all you guys (what ur saying) and I learned some more things, thats why i posted some of this info, to help us all maybe just listening which is obviously what I do as well, but then checked my carb 1 day and my gap was like almost 4mm! and i thought it was tuned pretty well. This means the lsn was prob too rich and high end too lean. Now how bad is an out of balance carb for the engine, i dont have real world proof for consiquences, but you i know that you can get the most out of the engine power and runtime wise if its set right. Hey by all means, if just going by listening all the time is it and makes no diff making sure its "in balance" and optimally set, then then better for us cuz that would be less work. Any other ideas would be good.
just remember Maximo isnt a fool wen coming to nitro, so just trying to help..
/rant
Last edited by HomicidalBunny; 09-15-2014 at 06:10 AM.
#7131
Looking at the exploded views of the Keep-Off 21.7XL, the part number you're looking for is 28025 (bare head button) and maybe 29002 (head button o-ring). The oring doesnt do much but add another layer of protection from dirt and dust.
#7132
Ahh cool thanks buddy. My first thought was to look at the exploded view... I searched the net for the part first. Thanks anyway Ill look that part up. A side note, I wasnt saying anyone called Neal a fool, i was making a point thats all, food for thought.
#7133
I don't tune with the airfilter off......
However when I help someone tune I always remove the filter to check the idle gap and make sure the linkage is working correctly...You can't even imagine how many have their linkage set incorrectly with a false idle gap....So before I waste any time messing with needles I check the idle gap and make sure the linkage is not holding the slide open at neutral position.....
However when I help someone tune I always remove the filter to check the idle gap and make sure the linkage is working correctly...You can't even imagine how many have their linkage set incorrectly with a false idle gap....So before I waste any time messing with needles I check the idle gap and make sure the linkage is not holding the slide open at neutral position.....
#7134
I don't tune with the airfilter off......
However when I help someone tune I always remove the filter to check the idle gap and make sure the linkage is working correctly...You can't even imagine how many have their linkage set incorrectly with a false idle gap....So before I waste any time messing with needles I check the idle gap and make sure the linkage is not holding the slide open at neutral position.....
However when I help someone tune I always remove the filter to check the idle gap and make sure the linkage is working correctly...You can't even imagine how many have their linkage set incorrectly with a false idle gap....So before I waste any time messing with needles I check the idle gap and make sure the linkage is not holding the slide open at neutral position.....
#7136
Well there goes that idea then lol
Has anyone heard of or tried the JP Gimar mig21 Dirt 7? Looks like a bad arrrrse engine! Check em out on ebay. What do you think? Seems like peeps arent really running JP anymore in the US? You think there are better engines out there?
http://www.ebay.com/itm/JP-GIMAR-Rac...item4aa9b72519
Has anyone heard of or tried the JP Gimar mig21 Dirt 7? Looks like a bad arrrrse engine! Check em out on ebay. What do you think? Seems like peeps arent really running JP anymore in the US? You think there are better engines out there?
http://www.ebay.com/itm/JP-GIMAR-Rac...item4aa9b72519
#7137
Joined: Jul 2004
Posts: 2,637
No on esaid you did Neal. But you do talk about the carby being in balance for tuning and not being good having a needle being either too lean or rich by being masked from a poor setting of another needle, which could then mask another improper needle setting, like the carb being way out of wack but still running decent. So from that, I took it too why dont guys tune the low end/idle without a filter, so setting the gap visually and getting the pinch test down pat. Then moving forward with the rest of the tune on the ground? I hate tuning the low end cuz its always a mutliple stage process with the gap and needle... just trying to better that process. Then tune with filter and hsn on ground.
#7138
I think i exaggertated a bit, it was probably more like 3mm at the most, but still you would say that there is a prop/correct setting for the gap right? I know there isnt magic involved lol but theres correct and incorrect settings follow?
#7140
No on esaid you did Neal. But you do talk about the carby being in balance for tuning and not being good having a needle being either too lean or rich by being masked from a poor setting of another needle, which could then mask another improper needle setting, like the carb being way out of wack but still running decent. So from that, I took it too why dont guys tune the low end/idle without a filter, so setting the gap visually and getting the pinch test down pat. Then moving forward with the rest of the tune on the ground? I hate tuning the low end cuz its always a mutliple stage process with the gap and needle... just trying to better that process. Then tune with filter and hsn on ground.



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