[69755]

Hey all!

I just got an old 1983 XS400R (the Seca version of the XS400) which is loads of fun!

Everything on it is great, but I had just one gripe while riding it home. Whenever I would stop at a light and sit in idle for a while, then try to get going (open the throttle) the bike would kind of sputter and stay at idle speed for a second and then rev up. However, if I just let the engine sit at idle for a few seconds, it would rev just fine.

Any ideas? I was thinking it might be low on oil. Its in a storage garage at the moment so I can't check it, but I can check everything tomorrow morning.

Thanks!

 

[The_AirHawk]

Whether or not it's low on oil should have little bearing on carburetion problems, which is what you're describing.

But don't forget to check (and change!) that oil...........

 

[69755]

Carb cleaning is on the list right behind a full fluid change and replacing the brake pads. I just thought it was strange to see the problem in such a specific incident.

 

[The_AirHawk]

I just thought it was strange to see the problem in such a specific incident

"I just got an old 1983 XS400R"

I didn't.

"Runs good - daily rider (when I parked it)" are words I've heard often...........

 

[69755]

I agree on the old thing, but in comparison to a 71 Mach 3 that I refurbished (and it looked and ran factory fresh when I finished, brag brag) carb problems are...bigger maybe?

Anyways. I have set aside monday for fluid changing, it just got a new battery and cleaning, but one more question. This one is pretty bad (be warned).

I was cleaning it up and I noticed something strange on the bottom of the crankcase. About six inches in front of the gear lever, and a couple inches from the side of the case there is a hole. It just a hole, its smooth, milled, has a lip. I stuck my finger in to see what it might lead to and just ran into some muck (oily dirt and road bits). I suspected that there is something supposed to be in the hole so I referenced my shop manual and some parts drawing, but couldn't find any reference to this mystery hole.

It is not threaded, about an inch in diameter, and in the front left of the crankcase, on the bottom, and has me worried.

Any idea what it is?

EDIT: The oil level is fine, and all the oil filter goodness is there, so its not the filter hole.

 

[69755]

The hole doesn't seem to go anywhere (just part of the mold I guess) so no worries anymore.

I would like to avoid a complete carb clean this summer (I just don't have a whole day to put into it without being able to get anywhere). So if possible, I would like to tune out the low rpm pull problem.

This is the problem: When opening the throttle after the engine has been idling, the engine is VERY sluggish to respond, but picks up quick afterward.

The problem gets worse as the engine warms up and only occurs after the engine has been idling for 30 seconds or so. Thus I am thinking the idle mixture is rich. The engine accepts full throttle everywhere in the band perfectly. I am a little confused by this one, and very novice to tuning a multi-carb setup like this. Thanks!

 

[The_AirHawk]

You'll have to ask mscuddy if he knows specifics about this particular bike (and he probably does!), but it might be a carb-synchronization issue, or some spooge in a jet or bleed hole, or simply a quirk of this particular model - it IS an early-'80s moto, after all!

 

[Kenneth_Moore]

I was cleaning it up and I noticed something strange on the bottom of the crankcase. About six inches in front of the gear lever, and a couple inches from the side of the case there is a hole. It just a hole, its smooth, milled, has a lip. Any idea what it is?

It is a "cashiyawan" (kaa-she-yaw-won), which is Japanese for "engine sphincter." Don't insert Q-Tips or other objects in it, just a gentle rinse with mild soap will do.

 

[sarnali2]

On the whole I think preperation H feels pretty good

 

[seruzawa]

Your bike has little caps covering the air adjusting screws on the carburetors. This was started back in the 70s to keep people from adjusting the carbs and committing the most heinous evil dastardly twisted crime in human history.... putting out too much pollution. It is possible that over time one or more of the air screws has turned and your idle air mixture is incorrect. The caps can be CAREFULLY drilled through and removed. The adjustment procedure for the screws may be in the shop manual.

You can mark the position of each screw and then carefully turn them in until they seat gently, counting the turns. They should be between 1 and 1 1/2 turns. You might find one that is way off. But be sure to mark the original positions because getting 4 carbs out of whack will really ruin your whole day.

 

[69755]

Just got back from a wedding so I am able to work on it again.

I just changed out the plugs (just part of the checklist) and replaced them with some NGKs (they were NGKs to start with too). Rode the bike around a little and the problem seems to have gone away. Throttle response is still a little sluggish IMO, but I don't know this bike. The throttle does pick up right away from idle, instead of sitting at idle for a second or two like it did before.

 

[seruzawa]

It will escalate your odds of winning considering a team can have much better acquiring electrical power. Finance Credit Card Debt Solutions That Can Get You Back On Your Feet Again - Fast! Steve PaulOther people have won, "How can I win the mega million"? And the more you have the better your chances of winning will be. As a result, they're not playing outside as much as children of generations past.

You can send that photo to the proper authorities online where you will find their e-mail addres. This formula basically tells us the value of our dollar when we buy a lottery ticket. An airplane ad can be seen during daytime at any spot. This just means that with a print brochure, there is a bigger chance that your target clients would actually read the contents; whereas, if you send e-brochures, there is also a big chance that your e-brochures will be-. The truth is that you have much improved odds of getting a winner when you play the more expensive scratcher game.

As with any kind of playing the odds are stacked in opposition to you unless you might be the "home". Lee May Living In Watford is an Internet Marketer Promoting the El Gordo Lottery elottery syndicate for online play of the El Gordo Syndicate. banks, IFIC Bank has unique insights into the dynamics in the corporate and financial sector. Receive a dated email with the Euro Millions Lottery Results at once to your inbox, no requirement to delay to see if a Euro Millions prize has come your way. http://www. Leave the celebrity for other. Winning the lottery is straightforward after you know what to perform! Again, winners are notified by email. The Queen Olympic Park District of London is the location of all the facilities already mentioned and will also house athletes from all over the globe. Most people who join the lottery would normally suppose that it is a game of luck and chance; that it is actually impossible to win when there's a "strategy" or a "sequence" made use of from the game.

I'd like to be acquiring electrical power too.

You bet babushka. How you like thighs of machine operator 35?

 

[sarnali2]

I'd like to be acquiring electrical power too.

You bet babushka. How you like thighs of machine operator 35?

Strong like Bull, soft like Sable, able to catch skin and cook rabbit with only teeth, Lada hub cap and empty caviar can full of gasoline......

Make good wife for you........