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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
732 Starting problems
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<blockquote data-quote="Blaine" data-source="post: 1724" data-attributes="member: 250"><p>That is a BIG difference in compression. Not only that but the cylinder with only 70 will probably not fire. The cylinder with 110 psi will be marginal at best. If the valve timing is off, it can and will cause low compression. This is the first thing I would check at this point. Also check the ignition timing(put crank at TDC, check orientation of rotor inside of the distributor; it should be pointed at #1, if it is pointing the opposite direction then rotate the crank an additional turn.) As far as the plugs being wet, did you check the ignition timing? Since this is carburated and the plugs are wet, I would shut off the fuel pump and see if it fires that way(leave the plugs wet). You might have to crank it a couple of times since the carb bowl will still have fuel in it. You will know when the bowl is empty because the accelerator pump will no longer pump fuel. I would then try starting it with some ether or starting fluid. If it will not run off of the starting fluid and the ignition timing is correct, you know you will have to fix the compression problem. Let us know what you find on the ignition and valve timing and we can go from there.</p></blockquote><p></p>
[QUOTE="Blaine, post: 1724, member: 250"] That is a BIG difference in compression. Not only that but the cylinder with only 70 will probably not fire. The cylinder with 110 psi will be marginal at best. If the valve timing is off, it can and will cause low compression. This is the first thing I would check at this point. Also check the ignition timing(put crank at TDC, check orientation of rotor inside of the distributor; it should be pointed at #1, if it is pointing the opposite direction then rotate the crank an additional turn.) As far as the plugs being wet, did you check the ignition timing? Since this is carburated and the plugs are wet, I would shut off the fuel pump and see if it fires that way(leave the plugs wet). You might have to crank it a couple of times since the carb bowl will still have fuel in it. You will know when the bowl is empty because the accelerator pump will no longer pump fuel. I would then try starting it with some ether or starting fluid. If it will not run off of the starting fluid and the ignition timing is correct, you know you will have to fix the compression problem. Let us know what you find on the ignition and valve timing and we can go from there. [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
732 Starting problems
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