Probelm with R15 v1 top speed

[VishDrmz]

Hi guys,

I m facing a strange problem with my bike top speed. Earlier I could easily cruze @ 120kmph daily while riding . but now the bike just resists to go beyond 110kmph .. even if there is a freeway. The rpm meter just halts at 9k rpm and speed remains the same for a long time..

I recently have serviced my bike from YAMAHA Factory Shop and got my sprocket and chain replaced.. cud this cause issue?

pls help guys!!!

[antz.bin]

Query Approved

[Sarvajit]

Check clogging in air filter, chain slack/sprockets then finally clutch plates.

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[anim333]

Check the drive chain slack. It should be between 20 to 40mm.

[Vignesh vnktrmn]

More details please.How old is your bike,how many KMs done,any major overhaul/replacement???

[VishDrmz]

@Sarvajit
Air filter is fine it was cleaned recently n chain is also properly adjusted... need to check clutch plates though..

@Vignesh vnktrmn
Bike is 2 ys old with 15k kms done.. n the major changes are as I mentioned the sprocket n chain..

[shrinathrao]

Check you AFR ratio, fuel pump supply and the oil filter.

[VishDrmz]

Check you AFR ratio, fuel pump supply and the oil filter.

One more point I forgot to mention the bike works fine till 4th gear(I can easily reach 100).. the problem starts only on 5th gear.. the bike just kind of resists to go beyond 110 and rpm meter halts as well..

hope this helps to narrow down the causes..

[somen1984]

I feel it's Fuel pump issue

[Honda_CBF]

Also check/clean fuel filter, fuel injecter and throttle body. Get them cleaned. And plz confirm, is the chain set stock?

[Shivanshu]

get the FI checked up. Specially the throttle body

[VishDrmz]

Also check/clean fuel filter, fuel injecter and throttle body. Get them cleaned. And plz confirm, is the chain set stock?

I replaced the chain and the sprocket changed during last service. But, I hope the replaced one is same as the stock one

get the FI checked up. Specially the throttle body

Have given my bike today @ YAMAHA FACTORY SHOP for checkup.. will ask them to look into these issues..


Hope the issues resolves today..

[Vignesh vnktrmn]

Did the issue get resolved?