| Author | Message | ||
     Pepperk496 |
Had to replace the tire this morning, so I had the CR lifted. When I re-installed the wheel and put everything back together (bike still on the rear stand) I started the bike with the clutch pulled and immediately the rear wheel accelerates to 9 mph. Idle is normal while its neutral so it doesnt seem to be a throttle issue. If it only occurs with the bike in gear and the clutch pulled, it would seem be a clutch issue right? | ||
| Smoke |
put the wheel on the ground and do the same thing-no movement i will bet! normal tim | ||
| Usanigel |
Clutch drag due to oil between the plates, perfectly normal! | ||
| Thefleshrocket |
What Usanigel said. Pretty much any bike with a wet clutch will slowly spin its rear tire with the engine running, in neutral, on a stand. When the oil gets hot, the drag may decrease enough that the wheel stops turning. | ||
| Littlebutquick |
cold oil in clutch as thefleshrocket said will reduce spin when hot  | ||
| Family_buells |
What makes the wheel move is actually the cold oil in the transmission with or without the clutch engaged. When on a stand and running with the clutch disengaged, the drag of the cold oil between the clutch plates and the drag of the oil between the freewheeling transmission gears makes the rear wheel slowly turn. With the clutch engaged, its just the drag of the cold oil between the freewheeling gears that turns the rear wheel. The oil between the clutch plates is one of the last things to heat up as the engine gets warm. That's why that first click into gear on a cold morning often feels kind of harsh. BTW bikes with a dry clutch will do the same thing while they are warming up on a stand with the clutch engaged and the bike in neutral. (Message edited by Family_Buells on March 28, 2010) |
