ICS L85A2 Hop Up problem

Mr P · December 4th, 2011, 19:03

Just recently bought an ICS SA80/ L85A2 and gamed it for the first time today. The gun was fantastic apart from one problem. For some reason the Hop Up is always making the BB arch upwards after about 100 feet, even on the lowest Hop Up setting.
Can anyone help me with my problem?
All help is highly appreciated

Cheers

Fong242 · December 4th, 2011, 20:21

Hi,
What's the weight of the BBs?
Fong

Mr P · December 4th, 2011, 20:33

Quote:

Originally Posted by Fong242

Hi,
What's the weight of the BBs?
Fong

King Arms .25

R.I.T.Z · December 4th, 2011, 20:49

have you tried removing the barrel/hopup assembly and checking the barrel for any obstructions

Fong242 · December 4th, 2011, 22:20

Like you, I noticed that at minimum hopup setting low weight BBs would arc up. You can either modify the hopup unit to reduce the hopup effect or change the rubber.

Fong

Wrath144 · December 5th, 2011, 01:21

The hopup system was the main thing I hated about my L85 when I had it. Possible solutions are to use a rubber with the 'bump' shaved off, file down the 'nub pusher', or to put a small drop of glue on the part of the adjuster that contacts the wheel so it sits slightly higher.
As far as I remember, I used the shaved rubber. I've worked on a few different L85's though, and the filed nub pusher is definitely the more permanent solution.

Mr P · December 5th, 2011, 07:11

Thanks for the input so far, I wish I was more Tech savvy, if I were to get another hop up rubber, are there any recommendations, I'll take a look inside when I get five this week.
Thanks Guys

Wrath144 · December 9th, 2011, 13:44

Try the ARS Rubber. It has a smaller 'bump' than your average rubber, it may work better without modification.

Mr P · December 10th, 2011, 11:14

Quote:

Originally Posted by Wrath144

Try the ARS Rubber. It has a smaller 'bump' than your average rubber, it may work better without modification.

I can't seem to find one, would you recommend one of these SCS rubbers? Would it work with the ICS L85 Hop Up system?

http://www.airsoftparts.ca/store2/in...oducts_id=1593

Cheers

Steven · December 10th, 2011, 11:21

http://www.airsoftparts.ca/store2/in...oducts_id=1772

Mr P · December 10th, 2011, 12:01

Quote:

Originally Posted by Steven

http://www.airsoftparts.ca/store2/in...oducts_id=1772

cheers mate

don't know how I missed that

still curious about the SCS as well, wondering if it will fit the hop up.

Thanks again

Wrath144 · December 10th, 2011, 17:40

That will only make your overhopping problem worse, unless you file the pusher.
Also, thats not a rubber, its just a nub.

old_and_slow · December 26th, 2011, 12:40

Since I got it my ICS L85A2 (SA80) has been great except for the hop characteristics. Even with the hop off the BB's went skywards and off to the right.

The BB's going to the right is due to the hop applying 'lop sided' pressure due to its design and with the hop off some of the rubber bump was visible in the barrel.

This is what has worked for me..........

1. replaced the hop rubber with a madbull blue BUT i ground the hop bump off.

2. i threw the nub away and replaced it with a 5/32" ball bearing out of a bicycle head race set. 5/32 is just under 4mm and fits in the nub slot perfectly.

3. I reduced the height of the hop arm (the bit that pushes down on the nub) so that off was off and there was no protrusion into the barrel.

4. Now the new 'nub' pushes perfectly downwards onto the BB with no 'lop sided' pressure. When I applied the correct amount of hop the BB's fly straight and level with no deviation until the end of their flight.

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December 4th, 2011, 19:03	#1
Mr P Trader rating Join Date: Jun 2008 Location: Lower Sackville, NS	ICS L85A2 Hop Up problem Just recently bought an ICS SA80/ L85A2 and gamed it for the first time today. The gun was fantastic apart from one problem. For some reason the Hop Up is always making the BB arch upwards after about 100 feet, even on the lowest Hop Up setting. Can anyone help me with my problem? All help is highly appreciated Cheers

December 4th, 2011, 20:21	#2
Fong242 Trader rating Join Date: Dec 2010 Location: Sainte-Julie	Hi, What's the weight of the BBs? Fong __________________ Valar Morghulis

December 4th, 2011, 22:20	#5
Fong242 Trader rating Join Date: Dec 2010 Location: Sainte-Julie	Like you, I noticed that at minimum hopup setting low weight BBs would arc up. You can either modify the hopup unit to reduce the hopup effect or change the rubber. Fong __________________ Valar Morghulis

December 4th, 2011, 20:49	#4
R.I.T.Z Crackers Trader rating Join Date: Mar 2009 Location: The Shwa	have you tried removing the barrel/hopup assembly and checking the barrel for any obstructions

December 5th, 2011, 01:21	#6
Wrath144 formerly steyr Trader rating Join Date: Sep 2005 Location: Winnipeg, Manitoba	The hopup system was the main thing I hated about my L85 when I had it. Possible solutions are to use a rubber with the 'bump' shaved off, file down the 'nub pusher', or to put a small drop of glue on the part of the adjuster that contacts the wheel so it sits slightly higher. As far as I remember, I used the shaved rubber. I've worked on a few different L85's though, and the filed nub pusher is definitely the more permanent solution. __________________ BROFORCE Admin - Winnipeg Airsoft Last edited by Wrath144; December 5th, 2011 at 01:24..

December 5th, 2011, 07:11	#7
Mr P Trader rating Join Date: Jun 2008 Location: Lower Sackville, NS	Thanks for the input so far, I wish I was more Tech savvy, if I were to get another hop up rubber, are there any recommendations, I'll take a look inside when I get five this week. Thanks Guys

December 9th, 2011, 13:44	#8
Wrath144 formerly steyr Trader rating Join Date: Sep 2005 Location: Winnipeg, Manitoba	Try the ARS Rubber. It has a smaller 'bump' than your average rubber, it may work better without modification. __________________ BROFORCE Admin - Winnipeg Airsoft

December 10th, 2011, 11:21	#10
Steven Trader rating Join Date: Jan 2009 Location: Langley, B.C	http://www.airsoftparts.ca/store2/in...oducts_id=1772 __________________ Friends don't let friends use highcaps.

December 10th, 2011, 17:40	#12
Wrath144 formerly steyr Trader rating Join Date: Sep 2005 Location: Winnipeg, Manitoba	That will only make your overhopping problem worse, unless you file the pusher. Also, thats not a rubber, its just a nub. __________________ BROFORCE Admin - Winnipeg Airsoft

December 26th, 2011, 12:40	#13
old_and_slow Trader rating Join Date: Jul 2011 Location: Surrey, UK	Since I got it my ICS L85A2 (SA80) has been great except for the hop characteristics. Even with the hop off the BB's went skywards and off to the right. The BB's going to the right is due to the hop applying 'lop sided' pressure due to its design and with the hop off some of the rubber bump was visible in the barrel. This is what has worked for me.......... 1. replaced the hop rubber with a madbull blue BUT i ground the hop bump off. 2. i threw the nub away and replaced it with a 5/32" ball bearing out of a bicycle head race set. 5/32 is just under 4mm and fits in the nub slot perfectly. 3. I reduced the height of the hop arm (the bit that pushes down on the nub) so that off was off and there was no protrusion into the barrel. 4. Now the new 'nub' pushes perfectly downwards onto the BB with no 'lop sided' pressure. When I applied the correct amount of hop the BB's fly straight and level with no deviation until the end of their flight. __________________

ICS L85A2 Hop Up problem

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