FOR SALE - Drew and Alan's sidecar build

[Banditbandit]

I have felt it start to do the same at Hampton downs on the old motor, but only a tiny bit and thought I was imagining it.

If it's doing that it will probably be external to the engine ...

[scrivy]

Battery voltage straight off the track is around thirteen, and always over fourteen while running. Got a grunty as Shorai in there.

I have felt it start to do the same at Hampton downs on the old motor, but only a tiny bit and thought I was imagining it.

What battery voltage have you got at the fuel pump??

[Ocean1]

By electrical I'm guessing people mean sensor related, rather than an electrical fault. Either way, it wouldn't get progressively worse through.

No, if the spark is weak then you get exactly the symptoms you describe. The higher the revs and the more throttle then the more pressure the spark has to fire through, so WOT at high revs is exactly where you start to notice it. Can be caused by dodgy coils, Leeds, almost anything ignition related.

Edit: 'course it could also be starving... got an in-line fuel filter in there somewhere?

[old rig]

It does run cleaner on partial throttle at lower revs, from what sounds like 4000-7000 revs like.

I'm gonna see if Bryce has a TPS the same as what's on there, they're fairly generic I understand.

Will also be getting a flue pressure gauge on there, and perhaps a manually adjustable regulator.

He's making more sense than most of what I came up with.

By electrical I'm guessing people mean sensor related, rather than an electrical fault. Either way, it wouldn't get progressively worse through each day normally.

Without a dash things are of course, more difficult.

sponge bob had by the sound of it the very same problem and i think will have to check with him he got it sorted and put a new fuel pump on it

[scrivy]

sponge bob had by the sound of it the very same problem and i think will have to check with him he got it sorted and put a new fuel pump on it

Yip, I had the same problem too........

So I put more air in the rear tyre - it spun so much, reduced the load on the engine and stopped the mis.......


As you were......

[scrivy]

sponge bob had by the sound of it the very same problem and i think will have to check with him he got it sorted and put a new fuel pump on it

Does yours have the same problem as Drews Darren?

[scrivy]

At least if Drew's rig stops, he can properly say that it didn't run out of fuel...............

[White trash]

Coils.

10 muthfuckas

[old rig]

Does yours have the same problem as Drews Darren?

what
i have a big end
maybe we could put my big with his flat top end and make some music

[scrivy]

what
i have a big end
maybe we could put my big with his flat top end and make some music

???? You mean you'll Hum, and he'll play with it.......

[nodrog:Me]

are you running a total loss system drew?

[Weaver]

are you running a total loss system drew?

No
.

[Grumph]

Couple 'a questions...

When it slows do you see a change in plug colour ? Have you looked yet ?

If no change it's probably electrical, and yes, a coil swap is the first place to start although in my experience kawa coils are usually pretty reliable - unless they've been cooked by leaving the ignition on....

If it goes lean on the plugs, is there a bag filter on the injection pump pickup ? When was that looked at or any inline filter too....

[Drew]

Couple 'a questions...

When it slows do you see a change in plug colour ? Have you looked yet ?

If no change it's probably electrical, and yes, a coil swap is the first place to start although in my experience kawa coils are usually pretty reliable - unless they've been cooked by leaving the ignition on....

If it goes lean on the plugs, is there a bag filter on the injection pump pickup ? When was that looked at or any inline filter too....

Plugs look like new after about four sessions of running.

Haven't checked the filter yet. Taking this week off from the chair, so as to keep some semblance of sanity.

[old rig]

Plugs look like new after about four sessions of running.

Haven't checked the filter yet. Taking this week off from the chair, so as to keep some semblance of sanity.

I talked to bob and his was the ecu not telling the choke to come off he had it on a dyno in tga here
his did the same after a few laps wouldn't rev etc the same as yours
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