creaser Posted November 12, 2016 Report Share Posted November 12, 2016 Hi I have a 2010 300 raga which I recently stripped the engine to replace the main bearings and found a cracked casing. I have bought some standard casings not magnesium ones. When I came to put it all back together I found that all the gears are there and fine when going up the box but when I come back down the box it seems to be awkward going into third. The gearbox seems to go tight. Also has anyone had trouble with main bearings being the wrong size. I bought some non genuine ones when I fitted them you couldn't turn the crank so I took them out got a new set from gas gas which were the same. When I contacted gas gas I was told the bearings had been manufactured the wrong size 23 mm deep instead of 22.5mm Quote Link to comment Share on other sites More sharing options...
lineaway Posted November 12, 2016 Report Share Posted November 12, 2016 http://www.trialscentral.com/forums/topic/61800-pro-engine-really-noisy/ Quote Link to comment Share on other sites More sharing options...
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