701 Backfire Issue

[flyingpiggy]

Hi all. My 701 Raider seems to backfire thru the rear main seal but only if I dump the throttle quick. If I throttle down gently it dosen't seem to occur. Sounds like a dog sneezing.
Can anyone tell me what is wrong & how to fix it??

Thanks in advance
Dave
Christchurch
New Zealand

[Technical Support]

Re: 701 Backfire Issue

It could be sucking air from the seal too. You might want to replace the seal.