In Winter we use our sleds mainly for transportation back and forth to mainland - which is less than 1km each way. Usually 2 up, often towing small sleigh. I have a 2006 Edge touring 550. We have always run fan cooled sleds as liquids either take too long to warm up, or overheat on bare ice.
I rebuilt my 550 with spi pistons and extra clearance. It has 280pto/270mag jetting. Needles clipped in middle.
It always seems to run too rich, especially in warmer weather. too the point of bogging where I have to coax it to get on the pipe.
I have read old posts where some people have used 220 mains. That seems like a HUGE drop from stock, but maybe it;s the way I should go? We do not use it for long trial rides - although sometimes kids go for a 25 minutes rip around island.
Can I safely go down to much smaller jetting to get better warm weather running? I know these engines have burn down issues.
Thanks and sorry for long email
I rebuilt my 550 with spi pistons and extra clearance. It has 280pto/270mag jetting. Needles clipped in middle.
It always seems to run too rich, especially in warmer weather. too the point of bogging where I have to coax it to get on the pipe.
I have read old posts where some people have used 220 mains. That seems like a HUGE drop from stock, but maybe it;s the way I should go? We do not use it for long trial rides - although sometimes kids go for a 25 minutes rip around island.
Can I safely go down to much smaller jetting to get better warm weather running? I know these engines have burn down issues.
Thanks and sorry for long email