Maybe the inlet needle lever is not set correctly or you have the pump diaphragm and gasket reversed.
Maybe the inlet needle lever is not set correctly or you have the pump diaphragm and gasket reversed.
I've got the spacer, it isn't cracked and has itself appropriately sandwiched between 2 gaskets. I skimmed around the gasket/carb body interface with a razor blade to make sure when I pulled it free, I wouldn't bend the inlet needle lever. Since it isn't feeding gas, I don't know whether to pull it and bend the lever down some, or bend it up some just to see if it makes a diff.
Maybe I'll pull it and bend it up some. On that side of the carb, I call it the pump side, the gasket goes against the carb body first, then the diaphragm goes on, then the cover goes on. I'm sure of that part. It's the opposite sequence on the other side of the carb.
Isn't it?????
I don't think I can pull this apart again this weekend, it's let it sit time. I am in the market for a new tank though for this saw--meaning left and right case halves for it. I'm watching ebay for that.
On another note though, on my other Roper non-runner, I replaced the pump side D and G with the old one I pulled out of my Dad's saw, cleaned it out briefly, then thrdew it on the .XXX770 and the bugger ran great........I do have a proper full rebuild kit coming for that saw, but I did get a little success on the Roper side of the pile today, just not my .XXX750 I really want to hear run great again.
That XXX770 is waiting its turn for a new pair of crank seals, carb stuff and then toss chips.
Check carefully the impulse passage from the crankcase to the carb.. Flange gaskets that come with generic repair kits are sometimes off on the hole for the passage.
I had something similar with my first Rem. 75A. The impulse hole was off by an hour (clockwise) or two.
Sigh, you insist on making the same newbie mistakes that I (and many others) have made.
I have to admit I didn't have hardly a clue how a diaphram carb. worked in the beginning.
B.T.W. My S.I.L. (aka Dumbo) has acquired a Jeep.
I shudder when my grandchildren have to ride in it.
Wifey has a tiny goldfish pond in our back yard but so far the ones from the bait shop don't last very long between the heat of summer and the raccoons.
Tank case halves cleaned up
Sealed back together with this stuff, and you're right, it isn't cheap out here in the Sandwich Isles either.
I have some other photos still on the cam, but have a parts motor coming pretty soon that I need. So depending on when parts arrive and when I get a chance to work on this I'll keep posting in the progress. I put a dab of the Yamabond stuff on that damaged area on the flywheel side of the casehalf since I just missed a deal on a parts case on ebay. I figure it should work for however long until perhaps another comes available, but I'm not too awful worried about it. It did have a minor gas leak here it turned out.
Happy 2012 to you in the warm country!
I must say my eyes lit up when I saw your 917.353750 fuel tank in 2 pieces.
My SN 49017 (origional owner) tank has been weeping from the bottom seam for more than a few years now but now with the price of fuel it and I are both crying.
I was about to go down the path of sealing the inside with a tank sealer product until it saw this post. Now I'm thinking of separating the halves and using the YAMABOND 6B, but on close observation it almost looks like the seam is welded!! Did you have much trouble separating the halves after all the mechanical connections were removed?
Your detailed tear down data is just what I needed to point me in this direction. Thanks for your great contribution.
This saw still runs like a charm after 40ish years except for its current fuel consumption.
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