Re: Bajaj Avenger - All versions

That part I understand. If you're using an engine oil which is thinner, it's important that you heat up the engine gradually and properly before ripping the throttle.
However, there's an important thing I am missing out in the picture is that, since 20W50 oils have higher thickness therefore at cold temperature it won't reach the engine to protect it. Whereas a thinner oil can easily flow and protect it right from cold temps.
Also, I have seen that my bike had issues in starting up with 20W50,oil as compared to 15w50 oil.

In a side story : I took my bike to SVC, and they opened up half of the bike, and removed the engine head. Replaced the cam shaft seal, and added some glue.
Didn't get time to ride the bike afterwards but the bike felt very harsh after the mechanics did their job.
I thought maybe this is due to reduced levels of engine oil so I added around 200ml more into the oil chamber.
Changed the mixture to a little richer and now bike feels smoother again.

Earlier when the engine head cover wasn't opened, and the oil was leaking.... The vibes were gone after changing to Motul 5100, the smoothness was so much that I accidentally ripped the bike to 90kmph and thought it may still be under 65-70 like the way it felt from engine sound and noise earlier. Motul 5100 makes a sh1t ton of difference for sure!!!

Going for 500km return trip ride tomorrow, will report about engine performance.

My question : How will excessive engine oil impact the engine and performance? I think the bike might have anywhere between 1,100ml to 1400ml of motor oil in it and most of it is Motul 5100 since I had the old Bajaj oil drained when engine was dead cold.

Ps : it's always nice to have a Mechanical engineer who understands the stuff in the community. Your inputs are always welcome and helpful Kalpesh.

Re: Bajaj Avenger - All versions

Changing oil seal cannot make bike harsh, but mechanic must have adjusted tappet clearance.
Excessive engine oil will create unnecessary resistance to inside moving parts and there will be power loss.

I never had cold start problem on my avenger 220. Even in this winter morning engine starts in one crank.

Motul 5100.....hmmm.I am thinking to try it after 2-3k on my bike.
Happy journey



kalpesh
I

Re: Bajaj Avenger - All versions

Hello everyone.
Just wanted to know if anyone has tried or seen the cruise handlebar fitted on to street variants. I want to try it but not sure how pretty or awful it will look.
Should I do it.? Can also go for RE Thunderbird handlebar if anyone suggests

Re: Bajaj Avenger - All versions

i have seen one with Thunderbird handle bar , handle looks great but wiring gets stretched . looks ugly too.

Re: Bajaj Avenger - All versions

Vibrations of 6year old Avenger 220


How to reduce engine and handlebar vibrations of my old Avenger? My hand gets so numb after 1 hr of ride
Am going to give for service tomorrow
So what all should I ask them to do ?
1.Engine mounts and bolts have been repeatedly tighten as per my request
2.Anything can be done on Handlebar like any more handlebar weight ? Or cushioning on Handlebar?
3. Adding"3spoke Enfield Crash guard will reduce the vibrations due to its weight"?
4. On Motul 5100
5.Exhaust has been little modified on stock exhaust-removed catalytic converter and increased pipe diameter to 1.5 Inch

Please reply [MENTION=88076]Golden Cat[/MENTION] [MENTION=75328]Richardson's[/MENTION] or anybody ? I guess this vibrations are one of most annoying thing

Re: Bajaj Avenger - All versions

Vibes are definitely one of the most annoying this, specially because most of the vibes are around the sweet spot of 60-75kmph.
In reality it's actually a specific engine rpm at which the bike vibrates around 3.5-5k band I think.
The vibes do reduce afterwards when you increase the speed, at least in 5th gear.

1. Try lubing the chain as some mechanics told me that avenger has vibration problems due to longer drive chain.

2. Adjust the brakes so that they don't create resistance and lead of vibrations.

3. Put some cushioning grips on handlebars as they will soak some vibes.

4. Rubber washers near the foot pegs and engine bolts should should help a lot.

5. Engine oil - Motul 5100 is best recommended.

6. Carburetor settings - I think adjusting the fuel air mixture will give the engine a good headroom to generate power properly and not struggle.
Set the mixture to rich and see if makes any difference. If not, then fallback to stock settings.

###############################

Completed a solo 500km round trip to Bharatpur from Delhi yesterday.
Took 8hrs in total, because of poor roads between Bharatpur and Mathura, and tons of construction on the highways.

I found that there were no leakages this time after changing the oil seal. So the leaks happening earlier were definitely due to bad cam shaft oil seal.

Bike isn't as smooth as earlier when it's cold , maybe I shouldn't have added unnecessary engine oil.
However after a while the engine heats up (10-15kms), the engine gets smoother.

The ride was comfortable , the bike easily cruised at 70-75kmph with a nice oomph.
However, I felt the bike is terrible in sand and off roads, even slight dirt will cause slips. Terrible beyond anything! However on tarmac, it's darn stable.

I developed severe neck and wrist pain and I feel this happened due to the full face helmet and me riding non stop.
I suppose the cruise handlebars are way better for high ways, but they will need a lot of work in paint adjustments and wire stretching.

Re: Bajaj Avenger - All versions

hi,
Engine vibrations are caused by many factors.
1) Your exhaust modification will lead to bad engine performance for sure. Install original of possible.
2) Too much tightness in chain causes vibrations
3) You can use Handle grips
4) Fuel mixture should be proper or slightly richer ( more petrol)
5) Engine vibrations are caused if fuel supply is not constant, dirty carburetor and air filter is a reason.
6) If all ok, then there is a small gear inside engine which prevents vibrations, check that last.
edited: Check spark plugs, misfiring also causes vibrations.


-Kalpesh

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hi,
Engine vibrations are caused by many factors.
1) Your exhaust modification will lead to bad engine performance for sure. Install original of possible.
2) Too much tightness in chain causes vibrations
3) You can use Handle grips
4) Fuel mixture should be proper or slightly richer ( more petrol)
5) Engine vibrations are caused if fuel supply is not constant, dirty carburetor and air filter is a reason.
6) If all ok, then there is a small gear inside engine which prevents vibrations, check that last.


-Kalpesh

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hi,
congrats for your trip.

As we discussed before, Oil behaves good when heated (operating temp).
Regrading handle bar, I must say cruiser handle bar is very good. You can change it and can use existing cable (not sure).
Yes Avenger do skids on bad roads and but I think good tyres (not new) can help there.
Oil leakage will not be visible for some days, hope it do not leak though.

For member, I can only say that do not alter exhaust system, its not just a pipe but its part of engine.

-Kalpesh

Re: Bajaj Avenger - All versions

Try changing the tire ... Mrf zaper y and IRC tyres are very BAD...
I bought TVS RAMBO tyre and passed 25k....Still good condition...
Bought from Snapdeal

Re: Bajaj Avenger - All versions

hi
checked the link and trye looks promising.
I am planning for street Alloy rims and repainting them.But will wait until Avenger 400 launch, maybe I can use its alloys and tyres ( disc brake assembly?)
TVS Rambo is added to list

Re: Bajaj Avenger - All versions

These are the spares changed
And Spark plug also changed

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1. Actually what I have done is Allowing free flow exhaust ...How does that affect engine badly ?

2.Adjusted chain

3. Searching for grips but still.didnot get one

4.I dono how to do it . How does air fuel mixture can be done by us ?

5. I think carburator is cleaned

6. Yes they called it SCISSORS GEAR INSIDE ENGINE. They changed it along with some Tension thing on Time chain

7.Changed sparks to NGK Normal one... Didn't get G-Power

8.Changed engine oil to Motul 300v 15w-50(earlier was Motul 5100)

Re: Bajaj Avenger - All versions

Air fuel mixture can be adjusted by Simply tuning the Carburetor screw. It's one of simplest things to tweak, but requires understanding of engine sound and feel.
If you turn the screw anti clockwise it will send more % of fuel than air, and vice versa.
If yours is at stock setting then turn the screw anti clockwise one turn each and see if the engine sounds and feels better gradually.

Do this while engine is hot and don't mess with any other screws down there except carburetor air fuel mixture screw.
I have adjusted my bike to two turns anti clockwise from what it was at stock.
I never checked fuel efficiency but I think it's around 38-40kmpl.

Re: Bajaj Avenger - All versions


Hi,
So did this solved your problem or not?

Re: Bajaj Avenger - All versions

Almost .... Now 70-80% has reduced... They said if problem still persists need to change time chain and related things...
Now pickup has increased... Easily reaches 90-100km/hr....
I ride at 80km/hr ...My average speed

Re: Bajaj Avenger - All versions

Hi,
Happy to hear that your problem is dampened.
How much old is your avenger and which model?

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I have adjusted my bike to two turns anti clockwise from what it was at stock.
I never checked fuel efficiency but I think it's around 38-40kmpl.[/QUOTE]

Are you sure two turns from stock setting?
Stock setting is already two turns anti clock, so your setting is 4 turns anti clock?
Did you check rpm variation while adjusting?

I will adjust my settings and will post. Currently my carb is 2.5 turns anti clock from zero.

-Kalpesh

Re: Bajaj Avenger - All versions



Are you sure two turns from stock setting?
Stock setting is already two turns anti clock, so your setting is 4 turns anti clock?
Did you check rpm variation while adjusting?

I will adjust my settings and will post. Currently my carb is 2.5 turns anti clock from zero.

-Kalpesh[/QUOTE]


6 years going to .... bought on JULY 2011