Starter Clutch Repair VFR750 With Pictures

[Gareth_VFR]

Hi there!
Here's my first 'how to' article.

The aim of this article is to show how easy it is to do this repair by yourself and avoid those horrific dealer fees (and you know the job will have been done properly too!).

I don’t intend the article to sound patronizing but if I assume limited mechanical knowledge then it can be used by everyone who stumbles upon it.

If I have missed anything out then please let me know and I will amend as necessary.

---
So, I get on my bike in the morning and "clack, clack, clack, clack, crunch, crunch" - that’s the noise it made when I hit the starter button, it sounded like the starter wasn't engaging enough to start her up.

Sometimes it would 'catch' and then start up, but most of the time it wouldn’t.

I didn't like riding the bike knowing this fault existed; I was scared that it might be causing further damage.

I knew what it was straight away, I had read on the VFR forum ages ago that on VFR's, at around 50K mileage, the starter clutch is likely to cause problems.

So I opened it up, here is what I found and what I did.

Parts were mostly from David Silver Spares and Lings Honda, both in the UK.

Parts required:
1 x starter clutch outer -28120ML7690
3 x spring for starter clutch 28125MT4000
3 x roller for starter clutch 91101516000
3 x cap for starter clutch 28126516020
1 x gasket for right engine cover 11394MY7000
1 x bottle of Loctite 270 Threadlocker (find it cheap on Ebay)

You will likely be refreshing your oil and filter while you are at it:
1 x oil filter kit 15010MCEH51
1 x oil drain bolt 9280012000
1 x oil drain washer 9410912000
And 3.1 litres of your favourite oil!

Tools required:
Socket set
Hexagonal wrench set
Torque wrench
Neat little cutter from Poundland (optional)

Lets get on with the task:

Remove the left and right hand side plastic fairing covers.

Remove the lower fairing.

Get the engine warm.

Drain the oil, careful you don’t get burnt!

Remove the old oil filter and install the new one, tighten to 10Nm.

Install your new oil drain bolt and washer, tighten to 30Nm.

Ok, let’s get the right hand side engine cover off, when you do it looks like this:



The starter clutch is the one with the three golden bolts.

These bolts were already loose on mine, I am glad I had stopped using the bike before any worse damage had been caused!

Here’s a closer look:



Can you see the cracks?

Look at the bottom bolt, then look to the left and right of it, there are small cracks visible on both sides.

To remove the centre bolt from the starter clutch, I wedged a towel in between the gears to prevent them from moving while undoing the bolt.

The golden coloured bolts were already loose; if they weren’t loose then I would have used the same method with the towel while the starter clutch was still in place.

Here’s the starter clutch off the bike with the top plate removed:



See those cracks (above) are actually quite bad.

Here are the old and the new next to each other:





See this pin (above):
It’s got to be transferred from your old broken starter clutch outer to the new one.



I pushed it from behind with a really small screwdriver.



Above picture shows the new starter clutch outer with the new springs and caps installed, and that little pin on the top right too.



Now the rollers are installed.



It’s time to put that top part back on, remembering to line up that pin and the hole.



Now to put the three bolts back in, they need thread lock to prevent them dangerously working their way out again.



Make sure the threads on the bolts are clean and free of oil.

Apply the Threadlocker and just do the bolts up finger tight.

Put the starter clutch assembly back on the bike.

Tightened the bolts to 40Nm using a towel or cloth to stop the gears from moving.







Next install the centre bolt of the starter clutch, tighten it to 90Nm.

Almost done.

Now just put your new gasket on and replace the right hand engine cover.

My old gasket was baked on and some of it didn’t want to budge, so I soaked it in WD40 and carefully persuaded it off with this tool I picked up at Poundland:



The engine cover bolts should be tightened to 12Nm.

The longer two bolts locate with the two dowel pins.

Now, if you did the filter change you need 3.1 litres of oil so top it up warm up the bike and check your oil level is still ok.

Panels back on.

Job done!

Post a message if you require further assistance.

[Badbilly]

Spot on, on that repair.

60k miles and mine started making noises, would ehgage but was making all sort of flakey noises. I lucked out and did not need the springs ect. The hub was cracked in one place.

The American version of the factory service manual is a bit deceptive in that it lists the hub as "clutch, starter". This is only the hub, not the springs ect. The gasket is needed.

[btl68]

THANK YOU!!!


My poor 93 with just 17,000 miles original started this (only 2 times) yesterday. So, I'll go check things out.