Picked 2 for £300 I might need some help 😂

[jonstone]

Ok so one of these has had the frame powder coated and some of the plastics and tank resprayed it was a mates dad's project he started probably 20 years ago was gonna strip both down to parts decide what's good and make one decent bike 🤞🏼 anything I should do engine wise to make sure all is good one was his daily ride before he started so hopefully there's on good engine there 😂 any checks I should be doing before I get things apart or any advice would be most helpful only just completed a cx 500 build but didn't have to do anything to the engine apart from clean and polish it ! So if there anything I should be checking let me know 

IMG20260404113845.heic

[Terry]

Looks like a fun project! I'd do a compression test on the engine(s) first which will tell you whether they are worth any effort. Then take the cam covers off and check the cam lobes and rockers for excessive wear, which was this model's Achille's Heel. It's been a long time since I have owned one of these (hence the black and white image...).

[jonstone]

Ok that'll be my first checks to do then 👍🏼 cheers bud 

[jonstone]

1 hour ago, Terry said:

Looks like a fun project! I'd do a compression test on the engine(s) first which will tell you whether they are worth any effort. Then take the cam covers off and check the cam lobes and rockers for excessive wear, which was this model's Achille's Heel. It's been a long time since I have owned one of these (hence the black and white image...).

Really good looking bike aren't they 😍

[Worfje]

That's a steal! Enjoy the restoration.

[jonstone]

Picking them up Saturday looking forward to it 

[FromMaine]

As Terry noted they did have some cam wear issues.

 

This was in the 84-85  model run.

 

In 86 Honda made some changes to the valve gear and carbs plus some other bits IIRC. This was a far better version, but a number of engine parts do not interchange between the two models.

 

Check you vin numbers, if one of them is an 86 model, and it has decent compression, that is the engine to build on.

 

Best of luck, fun bikes for sure.

[Captain 80s]

12 minutes ago, FromMaine said:

As Terry noted they did have some cam wear issues.

 

This was in the 84-85  model run.

 

In 86 Honda made some changes to the valve gear and carbs plus some other bits IIRC. This was a far better version, but a number of engine parts do not interchange between the two models.

 

Check you vin numbers, if one of them is an 86 model, and it has decent compression, that is the engine to build on.

 

Best of luck, fun bikes for sure.

 

There was not an 86 version of the RC15.  Nothing of any consequence interchanges between an 83-85 RC15 and the 86 RC24.  Nor were there any real changes to the engine 83-85.  Metallurgy on the cams may have improved in 1985.

 

You may be thinking of the 84/85 to 86 VF500F PC12.  There were substantial changes on that model in 1986 engine wise.

[FromMaine]

PSA

 

Capt 80's is correct, l did get it wrong.

 

Despite owning an 86 VF500F and having an 83 VF750F sitting in my garage.

 

Think I'll grab a beer and have a quiet talk with myself.

 

😕

[Captain 80s]

23 minutes ago, FromMaine said:

PSA

 

Capt 80's is correct, l did get it wrong.

 

Despite owning an 86 VF500F and having an 83 VF750F sitting in my garage.

 

Think I'll grab a beer and have a quiet talk with myself.

 

😕

 

Dude.  Grab me one.  We can have a lively talk with each other about cool Honda V4 Sport Bikes.

[FromMaine]

Done.

 

😁

[Captain 80s]

"Lunch"

 

🤣

[FromMaine]

They also have a "Dinner"

 

You'll want to be sitting down if you crack one of those.

 

🙂