madman007 Posted November 6, 2007 Share Posted November 6, 2007 hi guys hoping someone can help my out here. I recently had my engine rebuilt. have put every thing back together. I have spark and fuel getting into the cylinder head. but it still won't start. have new plug and new air filter. if someone can help me out in resolving this issue it would be much appreciated. Also was wondering how many turns out on the carby for the air screw and fuel mixture. Link to comment Share on other sites More sharing options...
stephe51 Posted December 3, 2007 Share Posted December 3, 2007 Most probably it's flooded. If the tilt of the motorcycle is so slanted because it's old already, the float in the carburetor may have leaked in fuel and flooded the engine. It happened to me so many, many times and it took me some time to figure this out. It only happens when I let it stay on its stand. However, it doesn't happen when I lean it to a wall and let it stand upright. I adjusted the float and that did it. Link to comment Share on other sites More sharing options...
Rapco Posted September 16, 2009 Share Posted September 16, 2009 Most probably it's flooded. If the tilt of the motorcycle is so slanted because it's old already, the float in the carburetor may have leaked in fuel and flooded the engine. It happened to me so many, many times and it took me some time to figure this out. It only happens when I let it stay on its stand. However, it doesn't happen when I lean it to a wall and let it stand upright. I adjusted the float and that did it. yeah me too. that why i always think to close the valve. rapco Link to comment Share on other sites More sharing options...
Moderator Cynic Posted September 16, 2009 Moderator Share Posted September 16, 2009 hi guys hoping someone can help my out here. I recently had my engine rebuilt. have put every thing back together. I have spark and fuel getting into the cylinder head. but it still won't start. have new plug and new air filter. if someone can help me out in resolving this issue it would be much appreciated. Also was wondering how many turns out on the carby for the air screw and fuel mixture. First off define 'rebuilt' do you mean a new head gasket and a wipe with a oily rag or are we talking a full strip, bearings and rebore? It should run no mater what you do with the mixture screw. Have you rebuilt the carb to go with the rebuilt engine? Is the choke working, float heights etc. Finally an ols skool tip for strokers from the days of premix. Shut the fuel tap 100yrds before you pull up at home. That way the fuel is clear of the carb. I still do it now. It was primarily to stop the oil separating and filling the carb on the OLD strokers running premix. But it stops the carb gumming up if the bike is not in full time use. Link to comment Share on other sites More sharing options...
jordanscycles Posted September 17, 2009 Share Posted September 17, 2009 maybe it needs a little help? try some starting fluid. might have too much 2 stroke oil in the gas. engines love ether. Also the screw should be turned back 1 and a half turns or so. Link to comment Share on other sites More sharing options...
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