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Post by thatcrazyguy on Apr 28, 2015 20:45:51 GMT -5
Ima pick it up thursday, gonna call him tomorrow  ill slap that bish on my scoot |
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Post by oldgeek on Apr 28, 2015 21:39:56 GMT -5
I made some progress on the dis assembly of the motor tonight. When I pulled the reed cage I was greeted by shredded tips on the CF reeds, but the stock fiberglass reeds on the other side look fine. No wonder performance was gradually falling off! What causes this to happen? And where can I buy a decent reed cage that wont break the bank?  |
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Post by nelson on Apr 28, 2015 22:33:54 GMT -5
I made some progress on the dis assembly of the motor tonight. When I pulled the reed cage I was greeted by shredded tips on the CF reeds, but the stock fiberglass reeds on the other side look fine. No wonder performance was gradually falling off! What causes this to happen? And where can I buy a decent reed cage that wont break the bank? I don't know why but I had the same thing happen to some cf reeds I put on a stock cage. Can only assume cheap quantity. Happened after about 100 miles. |
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Post by Sitticuss on Apr 29, 2015 1:54:53 GMT -5
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Post by oldgeek on Apr 29, 2015 6:12:41 GMT -5
I made some progress on the dis assembly of the motor tonight. When I pulled the reed cage I was greeted by shredded tips on the CF reeds, but the stock fiberglass reeds on the other side look fine. No wonder performance was gradually falling off! What causes this to happen? And where can I buy a decent reed cage that wont break the bank? I don't know why but I had the same thing happen to some cf reeds I put on a stock cage. Can only assume cheap quantity. Happened after about 100 miles. I cut them from a sheet of Malossi or Polini CF, So quality should not have been the issue. There were only a few hundred miles on them. I may just go back with stock metal reeds. I have to pull the motor from the scoot to change the reeds on this rear facing intake and I would rather not have to do it. |
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Post by 190mech on Apr 29, 2015 6:56:51 GMT -5
Ive seen quite a few write ups on carbon reeds going south with few miles,kinda think the old school fiberglass reeds of proper thickness is the trick...
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Post by Sitticuss on Apr 29, 2015 8:56:26 GMT -5
Ive seen quite a few write ups on carbon reeds going south with few miles,kinda think the old school fiberglass reeds of proper thickness is the trick... I prefer the stock aluminum reeds. I do enough maintenance so I don't worry about breakage. I used to have a link to one of those but they don't seem to sell them anymore. To bad you didn't have a better link. The cheap parts for these things are drying up. I have a friend who just buys sheets and cuts his own reeds. |
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Post by 190mech on Apr 29, 2015 9:13:21 GMT -5
McMaster-Carr has all types of fiber reinforced sheets,I bought some a while back and will try to find the type and thickness called out by some die hard 2T tuners and will post back..
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Post by 190mech on Apr 29, 2015 18:23:25 GMT -5
I found it,,Garolite(G-10/FR4) www.mcmaster.com/#grade-g-10/fr4-garolite-sheets/=wyve17I have a sheet of .015" Precision (p/n 1331T27),They also have .020,.023,.033.There is a 'wear resistant' grade also.. The post I remember used a thin full sized reed with a finger style backup(like the autotech355 carbon reed).No reed stops were used either,only a 'spreader bar. at the screws for good clamping force.. I'll try to dig up an illustration,if I'm lucky will post it.. |
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Post by oldgeek on Apr 29, 2015 20:10:59 GMT -5
Further dis assembly of the 99cc motor today found more surprises. The metal fingers that were backing up the CF reeds broke and went through the engine. Surprisingly no real damage was found. The piston has some minor scars, and you can see some scratches in the cyl above the exhaust port, but I cannot feel them with my finger. As I mentioned earlier in this thread there seemed to be a lot of clearance between the piston and cylinder when I assembled everything. I think the clearance may be what saved this from major damage. I also figured out I used some Hoca CF reeds, and not the Malossi or polini like I thought. The Hoca reeds were very thin. I don't know what kind of reeds/cage to go back with now. I think I may just reload this cage with thicker CF reeds, and likely no metal backup fingers, since I only have them for 1 side now anyways.  |
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Post by Sitticuss on Apr 30, 2015 5:38:25 GMT -5
I've got a few extra used cages..If you need parts etc. For whatever shipping would cost
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Post by jareeb on Apr 30, 2015 9:57:16 GMT -5
I have my Doppler Sr2 its brand new 3hrs on it. Opening is smaller than stock but it can be opened up more. Lmk if you want it.
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Post by oldgeek on Apr 30, 2015 21:20:02 GMT -5
The original fiberglass reeds are .35 thick. I have some .35 Malossi CF sheet that I am going to cut out a set of reeds from. The cage is still in good shape, so I will reuse it.
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Post by Corrosion on May 1, 2015 13:30:05 GMT -5
Seal the cut edges with a 2 part resin sealer.
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Post by oldgeek on May 1, 2015 16:40:49 GMT -5
Seal the cut edges with a 2 part resin sealer. looked all around, but cant seem to find anything. |
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ill slap that bish on my scoot
