Guest Posted October 27, 2008 Share Posted October 27, 2008 what is the best size sproket to have on my racing mini motoim doing it upit has a 6 tooth on fromt what size should i use on backalso can i take to head off and clean it and piston with out damagng timing or anythingim thick i now any help apreciated Quote Link to comment Share on other sites More sharing options...
craig Posted October 28, 2008 Share Posted October 28, 2008 thought you were selling it matie Quote Link to comment Share on other sites More sharing options...
MissD Posted October 28, 2008 Share Posted October 28, 2008 what is the best size sproket to have on my racing mini motoim doing it upit has a 6 tooth on fromt what size should i use on backalso can i take to head off and clean it and piston with out damagng timing or anythingim thick i now any help apreciated dont be putting yourself down now, if you dont know what to do that certainley dont class you as thick Quote Link to comment Share on other sites More sharing options...
Voodoo Posted October 28, 2008 Share Posted October 28, 2008 Surely you've got the old sprocket, in which case I'd keep it the same, but if you go with fewer teeth on the back it'll increase top end (as long as it has enough power) but reduce acceleration, and the opposite if it has more teeth on the back. Quote Link to comment Share on other sites More sharing options...
Guest Posted October 28, 2008 Share Posted October 28, 2008 i no what to do just ant got clue about sprokets:Lcheersi wqas selling and still will if someone can pick up from west yorkshire for 30 pound Quote Link to comment Share on other sites More sharing options...
Grumpy Old Git Posted October 30, 2008 Share Posted October 30, 2008 i no what to do just ant got clue about sprokets:Lcheersi wqas selling and still will if someone can pick up from west yorkshire for 30 pound Don't go down to a 1-tooth sproket. That will not work at all!Seriously though, keep the old one on and adjust for chain tension.And yes, you can remove the head, barrel and Piston without altering the timing - When you lift the head off, paint (using a coloured nail varnish is good) any chain / cog tooth meeting points so you can align these on re-assembly. Lift barrell sligtly and insert a rag all around gap, then when you pull the barrell off the piston, nothing will be damaged as it 'flops over'. For re-assembly, carefully position the barrell on the end of the piston and lower as far as the 1st ring, ease the ring in by squeezing the ring and sliding the piston up the barrell - same for all other rings. Don't forget to replace all gaskets and apply correct torque to all studs / bolts.Good luck. Quote Link to comment Share on other sites More sharing options...
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