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Nov 12

Posts: 25

jamie95 says:

2 stroke questions

Hello all

this evening i changed my bikes 2 stroke oil, draining the old reservoir by removing the pipes then putting it all back together and filled it up,
Will this be ok or do I need to bleed it or something?
First bike so just checking,
Also the pipe from the 2 stroke reservoir is starting to wear out, and slightly cracking,
Been looking for ages to try find a replacement but can’t find them anywhere, any advise?It is the same connection as this but don’t want to take the risk of this being in the same condition.
Cheers all

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  • Posted 2 years ago (07 December 2012 23:49)

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May 05

Posts: 51

r6buz says:


2 Stroke pump is not self priming (will not pump air through) and must be bled. As suggested earlier, there is a srew to be removed untill oil runs clear.

Adding oil to the petrol makes it thicker and therefore slower to pass through the carb jets. This will make the engine run lean and do more harm than good.

Regarding which oil to use, look on the back of the bottle. You should see JASO FC. Japanese Automotive Standards Organisation. FC or FD (better) will be fine but the cheaper stuff is FB and not up to scratch. Mixing them is ok so no need to drain, but don't go crazy with something like Castrol A747, which is genuine racing stuff and not suitable in a road bike.

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