craigabusa
Registered
Hey everyone I think the board is great and could use help.
I have a stock 99 busa I bought new in 99 and she now has 39k on her. 2 seasons ago I noticed a backfire then more common. This past spring put in a KN air filter and now even more backfiring, (all while decelerating from high RPM's) so common I have it timed to point and shoot my go go gadget finger gun. I read that some guys have replaced the "pair valve diafram". I phoned my local dealer and was informed I cannot just purchase the diafram but the whole unit. $240!!
Anybody that has done this can you please give me some input as I will be pulling my bike apart this evening and need it reaccembled in time to go to the west coast on Saturday am.
Second I have noticed a loss of power! mostly at higher elevations. I know some power loss is common but this is more then I have noticed in the past at other high elevations.
I had the valves checked this past spring and all were within spec (according to the shop that F@#kt up everything else)
could the diafram also be the problem? Plugs were changed recently however I will recheck them tonight. Fuel filter was also changed recently. Stock exaust. TRE on order.
there she is, thanks;craig
I have a stock 99 busa I bought new in 99 and she now has 39k on her. 2 seasons ago I noticed a backfire then more common. This past spring put in a KN air filter and now even more backfiring, (all while decelerating from high RPM's) so common I have it timed to point and shoot my go go gadget finger gun. I read that some guys have replaced the "pair valve diafram". I phoned my local dealer and was informed I cannot just purchase the diafram but the whole unit. $240!!
Anybody that has done this can you please give me some input as I will be pulling my bike apart this evening and need it reaccembled in time to go to the west coast on Saturday am.
Second I have noticed a loss of power! mostly at higher elevations. I know some power loss is common but this is more then I have noticed in the past at other high elevations.
I had the valves checked this past spring and all were within spec (according to the shop that F@#kt up everything else)
could the diafram also be the problem? Plugs were changed recently however I will recheck them tonight. Fuel filter was also changed recently. Stock exaust. TRE on order.
there she is, thanks;craig
