HEADS UP!!!

Site upgrade in progress... Core site functions are working, but some non-critical features/functions will be temporarily unavailable while we work to restore them over the next couple of weeks.

Please post any bugs you encounter, but before you do, check to see if it's already listed.

Thanks for your patience while we work to improve the community.

Sign in to follow this  
Followers 0
silverbullet830

No spray from Accel. Pump

5 posts in this topic

so started fiddling with my new toy today and figured I'd take off the air boot and see what the AP was doing. fuel on, cracked the throttle and didn't see anything at all. Is the jet the little brass tip sticking up right in front of the slide? if so it didn't do anything. tried it many times. where should I start?

Share this post


Link to post
Share on other sites

If its an old 400 the push rod is probably stuck from dirt, and/or the plastic arm that pushes the rod got a "long" hole in it...

Share this post


Link to post
Share on other sites

its a 2000, and apparently the carb was serviced by yamaha 2 or 3 years ago when the PO bought it (he showed me receipts, also did fork seals). it bogs if I don't roll the throttle on fairly slowly which is why i checked it. so I should probably just tear into it and clean the sucker huh? look for worn/stuck/damaged parts? I could at least check the diaphragm with the carb in place right?

Share this post


Link to post
Share on other sites

did a deep cleaning on the carb today. found a plug passage in the AP cover. also found out the jetting has been changed. its running much better now though. way less bog. did the O-ring mod and that made it even better. still a slight bog if you really jam on it from a little above idle but probably never happen under normal riding. still gonna check the spray timing tomorrow and fiddle with it a little more.

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0