bond Posted April 27, 2010 Share Posted April 27, 2010 TR7....backfires on tickover when warmed up. The first carb appears to be working as it should, on tickover its sucking air, if i cover the air intake on it the engine struggles and stops. The second carb does not suck air on tickover and when i cover the air intake on it nothing happens. Both carb suck air when reved. Any ideas, thanks in advance for any help Dave Link to comment Share on other sites More sharing options...
piman Posted April 27, 2010 Share Posted April 27, 2010 Hello Dave, it sounds as if the balance is wrong.You need to split the linkage between the two carburettors and increase the idle speed of the rear until it matches that of the front then adjust the idle speed evenly on both to get a sensible idle speed. A piece of tubing to your ear held into the intake will serve to judge the 'hiss' so as to have an equal draw on both units. Then tighten the linkage back up.Alec Link to comment Share on other sites More sharing options...
bond Posted April 28, 2010 Author Share Posted April 28, 2010 thanks Alec Link to comment Share on other sites More sharing options...
Nick Jones Posted April 28, 2010 Share Posted April 28, 2010 You might want to check that the rubber carb to manifold mounting blocks are not split/perished/leaking as that is something they like to to do.....Nick Link to comment Share on other sites More sharing options...
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