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Discussion Starter #1
When operating brakes with front lever they are fairly hard to pull and not great at coming to a stop. This seems to have changed a bit as a few weeks ago lever travel was much easier and actually locked up the brakes when pulled firmly. Now very stiff and average braking. Any ideas? Thanks.
 

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When was the last time the brake fluid was changed?
 

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You need to sop all the fluid out of the reservoir, assure the small pressure relief hole is not clogged and fill with new DOT 4 or 5.1 brake fluid.
 

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The location of the hole is in the portion of the MC where the fluid is supplied to the piston. There are two holes - a large one to let fluid in and a very small hole (perhaps about .010" in diameter) to release fluid expanded by heat return to the reservoir. The hole is not always obvious as on some master cylinders with remote reservoirs the holes are in an area covered by a hose nipple and on other designs a baffle covers the holes to prevent spray back when the brake is released and to prevent excess fluid ejection as the piston starts to move and before the seal passes the hole.

Easy to show hard to describe.
 

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Might try bleeding the brakes from the master cylinder. On these older bikes the wonderful brake fluid attracts water and the brake lines corrode internally until they are completely or partially blocked. If when you open the brake bleeder with the brake lever depressed you don't see a stream of brake fluid from the bleeder you have a blocked brake line.
 
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