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90 Yamaha TDR 250 discussion forum:RE: CDI Inquiries |
| RE: CDI Inquiries |
| Eliot said 2003-05-11 04:51 |
| This is NOT a turbo it`s YPVS valve and probably you have a burned servo motor..in any case check the folow Remove the right exchast chamber to gain access on the cap of ypvs valve.Loose the 2 pipes on the top of the cap,remove the cables from the valve.Then try to see if the valve moving by the hand if it is try to see if any of the two metalic cables is cut by pulling them gently inside out this two is NOT electric cables is moving cables if one is cut the servo is fine just running in the air... if the valve is not moving by the hand you are in bigger trouble :( your cyliders must be removed and repair the valve. Don`t try to open the cdi unit it´s fixed inside like a brick no part of the board can be removed without a hammer and damage. Good Luck. |
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