True or false ?
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- Mr.Frequent
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True or false ?
I just read this on a user page,and don't necessarily agree with it without any explanation provided. What are your experiences ?
"Valve adjustment requires rebalancing of the throttle bodies."
I replaced /upgraded my chain tensioner ,set my valves, and have had no issues.
Any help appreciated.
"Valve adjustment requires rebalancing of the throttle bodies."
I replaced /upgraded my chain tensioner ,set my valves, and have had no issues.
Any help appreciated.
Re: True or false ?
That's news to me. Maybe that's part of a 'regular' service interval?
Re: True or false ?
You may not have to but, to really have the bike run at it's best it is recommended that the TB's be synched after valve adjustment. I think a lot of the bikes that did have a surge issue really did benefit from an accurate adjustment of both and are both part of the "regular" service interval as noted above.
Buckster '03R
#543
#543
Re: True or false ?
Last summer I did a thorough maintenance including a valve adjustment and fresh spark plugs; the one thing I didn't do - since I didn't have the gizmo - was the throttle body balance. Before this work, I thought the bike ran well; after - it was a very subtle change - the bike ran really well. That continues till today. Therefore I didn't bother with the throttle body sync. At some point, I should buy/construct/borrow the necessary tool. But for now......if it ain't broke...you know the rest.
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Re: True or false ?
+1Buckster wrote:You may not have to but, to really have the bike run at it's best it is recommended that the TB's be synched after valve adjustment. I think a lot of the bikes that did have a surge issue really did benefit from an accurate adjustment of both and are both part of the "regular" service interval as noted above.
2014 Ducati Hyperstrada (HyperProject)
2005 BMW R1150sR Project Tourer
2005 BMW R1150sR Project Tourer
- Mr.Frequent
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- Joined: Thu Jun 11, 2015 9:13 pm
Re: True or false ?
Thanks,Photoguy,Buckster,Bogdan,and BadToTheBown.
Bogdan, I did just as you did,including the new plugs. It runs great, better even, and the cam chain noise being gone is nice.I haven't read that it's recommended after valve setting, but after thinking about it a few days, I think I will anyway.
Purged and refilled brakes and clutch last fall after I rebuilt the calipers and new pads on my '02 with 26000 miles.Put some aux lights on,too .
I think it's more about my having a good baseline for troubleshooting if I should have any problems. So far I haven't any issues since I've owned it,. :-)
Bogdan, I did just as you did,including the new plugs. It runs great, better even, and the cam chain noise being gone is nice.I haven't read that it's recommended after valve setting, but after thinking about it a few days, I think I will anyway.
Purged and refilled brakes and clutch last fall after I rebuilt the calipers and new pads on my '02 with 26000 miles.Put some aux lights on,too .
I think it's more about my having a good baseline for troubleshooting if I should have any problems. So far I haven't any issues since I've owned it,. :-)
Re: True or false ?
Frequent, What tool do you intend to use to synchronize the throttle bodies ? BTW....What does Frequent refer to - sex, alcohol consumption or maybe daydreaming ?
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Re: True or false ?
It depends on the amount of adjustment. The only way to know if it’s needed is to connect a TB balance tool. Once connected to check it, correction only takes a few minutes.Mr.Frequent wrote:I just read this on a user page,and don't necessarily agree with it without any explanation provided. What are your experiences ?
"Valve adjustment requires rebalancing of the throttle bodies."
I replaced /upgraded my chain tensioner ,set my valves, and have had no issues.
Any help appreciated.
- Mr.Frequent
- Basic User
- Posts: 53
- Joined: Thu Jun 11, 2015 9:13 pm
Re: True or false ?
Bogdan, frequent is a play on words .Frequent = freak went.
I've left the wild salad days of my 70's youth :-)
As for the adjustment, I'm five minutes away from a mechanic who has the equipment. Very reliable and noted bike mechanic.
I've left the wild salad days of my 70's youth :-)
As for the adjustment, I'm five minutes away from a mechanic who has the equipment. Very reliable and noted bike mechanic.
Re: True or false ?
No, I think throttle body balancing is not required after valve adjustments, but it probably will make your bike run smoother since if the valve lash on either cylinder was out of spec, then bringing it back to spec probably changed the air inspired by that cylinder, and if both cylinders are not inspiring the same volumes of air, then your engine is going to run like a Harley.
OTH, I would think a better statement would be,"You shouldn't balance your throttle bodies without first adjusting your valves".
OTH, I would think a better statement would be,"You shouldn't balance your throttle bodies without first adjusting your valves".
Rich
ADIOS!
ADIOS!
Re: True or false ?
What tool to use...
I balance them twice. I have a set of commercial metal differential gauges that I use but I then have a DIY manometer that uses water. Water is less than 10% as dense as mercury and provides the sensitivity for a much finer balance. There are different takes on how to balance but my preference is to:
Rs,
Sol
I balance them twice. I have a set of commercial metal differential gauges that I use but I then have a DIY manometer that uses water. Water is less than 10% as dense as mercury and provides the sensitivity for a much finer balance. There are different takes on how to balance but my preference is to:
- 1 - Clean and balance TB big brass screws at idle. Then leave them alone.
2 - Make sure you have the proper amount of slack in the left side throttle cable.
3 - Raise the revs to 2000 rpm and adjust the right side throttle body using only the throttle cable. The cable will go out of adjustment when you tighten the lock nut. Play with it until you get the TBs to balance AS YOU TIGHTEN the lock nut.
Rs,
Sol
"Better to live rich than die rich."
- Mr.Frequent
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- Joined: Thu Jun 11, 2015 9:13 pm
Re: True or false ?
Thank you, Soliton.
Making the water manometer is an idea I've considered many times.It's reliable and affordable;cheap in fact for such a valuable tool.
I've also read to run it up to 4000 rpm and check at the higher rpm, too. Some note using a fan to prevent overheating. I may just do that.
Also read and noted your Monza cap idea.
Making the water manometer is an idea I've considered many times.It's reliable and affordable;cheap in fact for such a valuable tool.
I've also read to run it up to 4000 rpm and check at the higher rpm, too. Some note using a fan to prevent overheating. I may just do that.
Also read and noted your Monza cap idea.
Re: True or false ?
I do it.
changing a valve gap will change the intake timing/pressure slightly. keep all things equal.
way overdue for both.
changing a valve gap will change the intake timing/pressure slightly. keep all things equal.
way overdue for both.
2002 R1150R. Helmets save more lives than loud pipes.