Kwa M11 hop-WAY-up

yoyit2 · June 2nd, 2010, 03:26

hello, ive got a KWA m11a1 (mac11) which i have had for about 2 months (new). it has had roughly 2-3000 rounds through it using 50/50 green gas and propane.

PROBLEM:
the hop up is WAY to high on the lowest setting. with .25g. i can aim at a targets chest, from 50ft, and quite easily shoot over there head. ive also tried .3g, which at 100ft will still climb about 2-3ft.
also, the hopup is totally different from semi, to full. i can get it close on one (some times after lubing) but then when i change the fire mode, the hopup is totally different.

any suggestions?

chaosnemesis · June 2nd, 2010, 08:30

it just sounds like your hop-up rubber is swelled up a bit causing overhop. Or, the ball bearing nub that presses down on the rubber is jammed down. Just take apart the hop unit and inspect each portion. Be sure not to loose that ball bearing when disassembling.

Remember there's cool down when firing in full auto. gas pressure drops in auto so there's always going to be a difference in hop between the two modes due to the changes in fps.

yoyit2 · June 2nd, 2010, 20:50

lol, i litterally came across this thread: http://www.airsoftcanada.com/showthr...ight=m11+hopup

just before you posted. thanks tho, i just skimmed through the thread, but is there any other way to clean hop up rubers, other then dish soap or isopropy?? ..assuming its not the bearing.

chaosnemesis · June 3rd, 2010, 09:12

you'd want to use dish soap because it's a detergent and detergents contains surfactants. They have hydrophillic and hydrophobic sided molecules that will take everything off of the rubber leaving it very clean. bar soaps are emulsifiers, it just mixes the oil and water together, so after a rinse you'll still have some residue left behind. you can also use a mild laundry detergent.... but why bother just use dish soap.

I've never tried using isopropyl alcohol.

yoyit2 · June 5th, 2010, 05:34

well... i took the hop up rubber out, and placed it in a bowl of very soapy water. After 24 hours of sitting, i rinsed and dried the rubber, then replaced it in the gun. unfortunately nothing changed

.3g still go up ^

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June 2nd, 2010, 03:26	#1
yoyit2 Trader rating Join Date: Apr 2010 Location: Abbotsford, BC	Kwa M11 hop-WAY-up hello, ive got a KWA m11a1 (mac11) which i have had for about 2 months (new). it has had roughly 2-3000 rounds through it using 50/50 green gas and propane. PROBLEM: the hop up is WAY to high on the lowest setting. with .25g. i can aim at a targets chest, from 50ft, and quite easily shoot over there head. ive also tried .3g, which at 100ft will still climb about 2-3ft. also, the hopup is totally different from semi, to full. i can get it close on one (some times after lubing) but then when i change the fire mode, the hopup is totally different. any suggestions? __________________ If at first you don't succeed... throw a frag!

June 2nd, 2010, 20:50	#3
yoyit2 Trader rating Join Date: Apr 2010 Location: Abbotsford, BC	lol, i litterally came across this thread: http://www.airsoftcanada.com/showthr...ight=m11+hopup just before you posted. thanks tho, i just skimmed through the thread, but is there any other way to clean hop up rubers, other then dish soap or isopropy?? ..assuming its not the bearing. __________________ If at first you don't succeed... throw a frag!

June 5th, 2010, 05:34	#5
yoyit2 Trader rating Join Date: Apr 2010 Location: Abbotsford, BC	well... i took the hop up rubber out, and placed it in a bowl of very soapy water. After 24 hours of sitting, i rinsed and dried the rubber, then replaced it in the gun. unfortunately nothing changed .3g still go up ^ __________________ If at first you don't succeed... throw a frag!

June 2nd, 2010, 08:30	#2
chaosnemesis Trader rating Join Date: Nov 2008 Location: Toronto	it just sounds like your hop-up rubber is swelled up a bit causing overhop. Or, the ball bearing nub that presses down on the rubber is jammed down. Just take apart the hop unit and inspect each portion. Be sure not to loose that ball bearing when disassembling. Remember there's cool down when firing in full auto. gas pressure drops in auto so there's always going to be a difference in hop between the two modes due to the changes in fps.

June 3rd, 2010, 09:12	#4
chaosnemesis Trader rating Join Date: Nov 2008 Location: Toronto	you'd want to use dish soap because it's a detergent and detergents contains surfactants. They have hydrophillic and hydrophobic sided molecules that will take everything off of the rubber leaving it very clean. bar soaps are emulsifiers, it just mixes the oil and water together, so after a rinse you'll still have some residue left behind. you can also use a mild laundry detergent.... but why bother just use dish soap. I've never tried using isopropyl alcohol.

Kwa M11 hop-WAY-up

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